Our 40BR Rear Beam Bush is engineered to replace OEM part numbers: 1535296, 1751679, 1805815, 1805866, 1871475, 8V51-5K653-AA, AY11-5K653-AA, D65128460, Delphi TD1629W, and Febi 34748. It’s designed for everyday driving while providing long-lasting stability.
Why OEM Rear Beam Bushes Fail
Rubber Deterioration Over Time
Original rubber bushes degrade with heat, moisture, road salt, and ozone exposure. Over time, they soften, crack, and detach from the sleeve, causing unwanted rear movement.
Ford Fiesta Mk7 Rubber Bushing Failure
Excessive Compliance
OEM bushes are soft to maximise comfort, but this leads to rear axle steer, unstable cornering, and increased tyre wear — especially noticeable in European driving conditions like winding Alpine roads or urban cobblestones.
Voided Design and Fatigue Points
Many OEM bushes are voided to allow flex. Once the rubber fatigues, these voids concentrate stress and accelerate failure.
Why Rubber Isn’t Ideal for Rear Axle Bushes
The rear beam must:
Support lateral forces
Control braking loads
Maintain rear toe alignment
Isolate vibrations
Rubber loses integrity under prolonged load, resulting in geometry shifts and unpredictable handling — something no European driver wants on highways, mountain passes, or city streets.
Why Polyurethane is the Smarter Choice
Simple, hassle-free installation that gets you back on the road quickly.
Resistant to Environmental Factors
Polyurethane resists oil, salt, ozone, and heat. It maintains performance for years, unlike rubber.
Controlled Compliance for Comfort
The 40BR bush is engineered to allow exactly the right movement — stabilising the rear axle without making the ride harsh.
Everyday European Driving
From German Autobahns to French country roads, Italian autostrade to Spanish urban streets, the 40BR bush delivers predictable, safe handling without sacrificing comfort.
Comfort Meets Everyday Driving
City and Highway Benefits
Reduced rear-end “thud” over bumps
Improved straight-line stability
Sharper, more predictable cornering
Noise and Vibration Reduction
Our polyurethane bush minimises vibrations and noise, keeping your daily commute comfortable while your rear axle remains perfectly aligned.
Easy Installation
DIY or Workshop-Friendly
The 40BR bush is a direct replacement, fitting without modification. Suitable for professional mechanics and knowledgeable DIYers alike.
When to Upgrade
During suspension overhauls
Rear brake replacement
Technical inspections or MOT advisories
Proven Across Europe
Relevant in Germany, France, Italy, Spain, and Scandinavia
European drivers face the same rear beam bush issues as UK drivers, often worsened by winter road salt and rough surfaces. Polyurethane is perfectly suited to these conditions.
Long-Term Solution for EU Roads
The 40BR bush stabilises your rear axle, reduces repeat repairs, and maintains geometry for safer, more predictable handling.
Bottom Line – Why Upgrade to 40BR
Direct replacement for OEM 1535296, TD1629W, Febi 34748
Improves rear axle stability for everyday European driving
Polyurethane ensures durability and comfort over standard rubber
Available for shipping across Europe — Germany, France, Italy, Spain, Scandinavia
For Range Rover Classic (1970–1994) & Discovery 1 (1989–1998)
Restoration shops working on Range Rover Classic and Discovery 1builds know that body removal is one of the most labour-intensive stages of any project. Replacing chassis outriggers, repairing mounts, and refinishing components represents a significant investment in time and customer budget.
Refitting low-cost rubber body mount bushes at this stage introduces avoidable risk.
Polybush 1ET is a direct OEM replacement for ANR1504 and 572295, engineered specifically for:
Why Polybush 1ET Is the Correct Choice for Restoration Projects
Polybush 1ET Body Mount Bushes for Range Rover Classic & Discovery 1
1. No Compression Set Unlike modern rubber, Polybush material will not permanently deform under sustained load. This prevents body sag, misalignment, and premature deterioration.
2. OEM Ride Quality Compound tuning ensures compliance similar to the original 1970s rubber bushes. No increase in vibration or harshness.
3. Long-Term Stability Resistant to oil contamination, environmental degradation and material breakdown common in modern rubber alternatives.
4. Reduced Warranty Risk Avoid customer returns for premature bush failure by installing a lifetime solution during initial assembly.
Protect the Investment
Restorations often exceed tens of thousands of pounds in parts and labour. Using short-life rubber body mounts undermines the longevity of the entire project.
Polybush 1ET body mount bushes allow restoration specialists to deliver:
Factory-correct comfort
Improved long-term durability
Reduced repeat labour
Greater customer satisfaction
When the body is already removed, it makes commercial and technical sense to install a solution that will not require replacement in a few years.
For restoration workshops committed to doing the job once—and doing it properly, Polybush body mounts are the professional choice.
Are you sick of the dreaded Transit dogbone mount failing on your Ford Transit & Tourneo Custom V362/V363 (2013–2023)? You’re not alone. At Polybush, we’ve been listening to Transit owners, van converters, tradespeople and fleet mechanics who keep seeing the same issue crop up again and again — the lower torque mount (often called the dogbone mount) simply doesn’t last when left in standard rubber form. That’s exactly why we developed the 40DQ Lower Torque Mount Insert.
40DQ – Ford Transit Custom Mk8 Lower Torque Mount
This isn’t just another “replacement part” — it’s a genuine performance and durability upgrade for a known weak point on these vans.
What This Fits (OEM Part Numbers)
Our 40DQ Lower Torque Mount Insert is engineered to be installed into the original mount housings for the following OEM part numbers:
Let’s break it down in simple terms: the lower torque mount (dogbone) is there to control engine and transmission movement under load — especially on acceleration, deceleration and gear changes. In a Transit carrying heavy payloads or towing regularly, that mount sees a lot of abuse.
The trouble is, the factory uses rubber in these mounts. While rubber is quiet and cheap, it has some critical weaknesses:
Rubber Weaknesses
Age hardening: Rubber hardens over time, especially when exposed to heat and engine bay oils.
Creep & distortion: Under constant torque loads, it stretches and deforms.
Water/oil contamination: Oil and road grime degrade rubber faster than you expect.
Loose feel: As it deteriorates, the engine moves more — leading to clunks, vibrations and stress elsewhere.
Search forums like TransitCenter or social groups on Facebook, and you’ll find countless owners complaining “dogbone mount snapped again”, “engine shifting under acceleration”, or “harsh vibration when pulling loads”. This is exactly the failure mode that cheap-as-chips rubber replacements can’t fix — because they’re the same material Ford originally used.
Maintains torque control without letting the engine flop about
Reduces harsh vibration without making it uncomfortable
Greatly extends life compared with OEM rubber
This isn’t “rock hard” street racer stiffness — it’s engineered to strike the right balance for a working van.
40DQ Installed in OEM Arm
Polyurethane vs Rubber — Why It Matters
Let’s chat materials for a moment — because this is where people either get it… or don’t.
Polyurethane Benefits
Feature
Polyurethane
Rubber
Load Bearing
Excellent
Moderate
Fatigue Resistance
Very high
Moderate
Oil/Contaminant Resistance
Very high
Poor
Hardness Stability
Stable over temperature
Softens/hardens with age
Noise/Vibration
Tunable
Tunable but degrades
Put simply: polyurethane does the job rubber was supposed to do — but better and for longer. It doesn’t sag or deform under load, it’s far more resistant to oil and heat, and it won’t turn into a brittle lump after a few years on the road.
So while rubber is comfortable when new, it’s a known failure point on high-stress parts like the Transit dogbone mount. Polyurethane keeps its shape, keeps your engine centred and keeps the van feeling tighter over more miles.
What This Means for You
Whether you’re a fleet manager tired of repeat failures, a van lifer prepping your Transit for a round-Europe tour, or a tradesperson relying on your van every day, the 40DQ Lower Torque Mount Insert is an upgrade that makes practical sense:
Less downtime
Reduced vibration/noise
Improved drivetrain control
Longer service life
No need for expensive aftermarket “heavy duty” rubber parts
Final Word
The Transit dogbone mount might be easy to overlook — until it fails. And when it does, you feel every gear change and hard acceleration. Our 40DQ insert isn’t about making your van feel “racey” — it’s about giving you confidence that the mount won’t be the next thing to let you down.
If you’re after a reliable, durable, engineered solution rather than a stop-gap rubber replacement, this is it.
It’s one of those common faults that sneaks up on you. One minute the car feels fine, the next it’s vague through corners, unsettled on the brakes, and just not as tight as it used to be.
The OEM Rear Axle Bush Problem
The original rear beam bushes — commonly found under OEM part numbers:
…have gained a bit of a reputation, and not a good one.
The issue isn’t abuse or mileage alone — it’s the design and materials. The plastic outer shell cracks, the rubber debonds from the centre tube, and the voided rubber simply can’t cope with real-world loads for long. Once that happens, the rear axle is free to move far more than it should.
And that’s where the fun starts.
Mk7 Ford Fiesta Rear Axle Bush Failure
Symptoms of Failing Rear Axle Bushes
If your Fiesta Mk7 or Mazda 2 is suffering from worn rear axle bushes, you’ll usually notice:
A loose or unsettled feeling when cornering
Excessive vibration or road noise
Poor rear-end stability under braking
Reduced driver confidence and feedback
Left unchecked, worn rear beam bushes don’t just affect handling — they accelerate wear in tyres, suspension components, and braking performance, turning a relatively simple job into an expensive chain reaction.
Rather than replicating the weaknesses of the factory rubber bush, the 40BR is manufactured from high-quality polyurethane, engineered to resist deflection, fatigue, and debonding.
40BR Installed Into A Ford Fiesta MK7
Key Benefits of Polybush 40BR
✔ Sharper, More Predictable Handling By removing the large voids found in the OEM bush, the rear axle is properly located. The result is noticeably better cornering precision and rear-end stability — especially noticeable on Fiesta Mk7 ST models.
✔ Comfort Is Retained This isn’t about turning your daily driver into a bone-shaker. The 40BR is tuned to control movement without introducing harshness, so ride comfort remains spot-on for road use.
✔ Improved Tyre Life & Braking Stability Less axle movement means more consistent tyre contact and better braking confidence. It’s one of those upgrades that quietly improves everything the car does.
Easy Installation – No Axle Removal Required
One of the big wins with the Polybush 40BR is installation.
The Polybush 40BR Rear Axle Bush – Fitting Mk7 Fiesta
Unlike some solutions, the rear axle does not need to be removed from the vehicle. We have heard the average time it takes to install is around 30 mins! That makes it a far more appealing job for:
Independent garages
Performance specialists
Competent DIYers
Less labour, fewer seized bolts, and a quicker turnaround — all without compromising on results.
Why Polyurethane Beats Rubber Every Time
If you’re replacing rear axle bushes on a Fiesta Mk7, fitting rubber again is usually just delaying the inevitable. Polyurethane doesn’t suffer from the same ageing, cracking, or debonding issues, which means:
Longer service life
More consistent performance
Less money spent redoing the same job
As we say for good reason: “Fit it once, fit Polybush.”
Related Suspension Upgrades for Fiesta Mk7 & Mazda 2
While the 40BR rear axle bush solves the most common rear-end issue, it’s often worth considering related components while you’re there:
After fitting our Polybush Comfort Grade Kit 38 to this particular car, we wanted to see how it behaved when the owner pushed it properly — not just the usual B-road jaunt, but a genuine track session with some spirited driving.
If you want to see the original installation and explanation of Comfort Grade, you’ll find that video here: https://youtu.be/azyvqagMbOU
Driver Feedback: Comfort Bushes Under Pressure
The owner’s verdict was glowing. He already expected the Comfort Grade bushes to improve road manners — that’s their wheelhouse — but what took him by surprise was how composed they remained once the pace went up.
Even in faster corners, the BGT felt predictable and settled. Turn-in improved thanks to more stable geometry, the back end stayed planted, and mid-corner bumps didn’t knock the car offline. In his words: “It feels like the MG I know, just… sorted.”
And that’s exactly what Comfort Grade is meant to do: keep the classic feel, but tidy up the slack that ageing rubber introduces.
Why Polybush Outperforms Rubber — On Road and Track
Rubber is fantastic when fresh, but it breaks down quickly with heat, oil, age and use. Once it softens or cracks, your suspension geometry starts wandering, which is why old classics can feel vague or unstable.
MG BGT – Comfort Grade Bushes
Our polyurethane bushes maintain their shape and resilience for years — often decades — delivering:
consistent handling
sharper steering feel
improved ride quality
vastly better long-term durability
And, importantly, every Polybush product is British-made, engineered and manufactured right here in the UK. These cars were built for British roads, so the parts should be as well.
Different owners want different behaviours from their MG, so we offer three tailored grades:
Comfort Grade (Blue)
The setup used in our track test. Perfect for everyday road use, long tours and maintaining that classic MG suppleness.
Better control, without making the car feel modern or harsh – See Our Blog
Dynamic Grade (Orange)
A brilliant option if you want a bit more sharpness and response. It’s ideal for fast road driving — a livelier, more eager feel, but still perfectly civilised.
Think of it as giving the car a bit more “pep in its step”, without compromising comfort – See Our Blog
Performance Grade (Red)
For drivers who really lean on the car. Perfect for track days, competition, or anyone wanting maximum precision.
It’s the most focused, most durable option for high-stress use.
Track-Day Takeaway: The MG BGT Still Has Plenty Left to Give
The biggest win from the day was how natural the upgrade felt. The owner climbed out of the car smiling, because the BGT didn’t feel drastically changed — it just felt like its best self.
That’s the philosophy behind Polybush: Enhance the classic, don’t overwrite it.
Whether you choose Comfort, Dynamic or Performance, everything we make is:
British-made
Engineered for British cars
Designed to last
Tested on real roads and real circuits
For anyone restoring, upgrading, or simply enjoying their MG BGT, Polybush will help it feel tighter, more controlled and far more confidence-inspiring — without stripping away the charm that makes these cars so loved.
The Mk7 Fiesta uses a torsion beam rear axle. It’s a simple, strong design – great for daily driving – but it relies heavily on two large rubber bushes that mount the beam to the body.
From the factory, these bushes are soft rubber. Over time they:
Crack and split
De-bond from their outer sleeve
Soften and allow excessive movement
Start knocking when pulling away or going over bumps
Fiesta Mk7 – Axle Bush Failure
Fiesta Mk7 – Axle Bush Debonded
Fiesta Mk7 – Axle Bush Worn & Debonded
Common symptoms include:
A dull thud from the rear when changing gear
Instability during braking
Rear-end “wiggle” on uneven roads
Uneven tyre wear
Vague rear suspension feel
Many owners describe it as “Fiesta movement” at the back of the car – that slight delay before the rear follows the front.
If you’ve searched for Ford Fiesta rear suspension bushes or Fiesta rear axle bushes making noise, chances are these are the culprits, and your bushes have already failed!
The Polybush 40BR Rear Axle Bush – A Proper Fix
Our Polybush 40BR replaces the original Ford rear beam bush.
OEM Cross Reference: 1535296, 1751679, 1805815, 1805866, 1871475, 8V51-5K653-AA, AY11-5K653-AA, D65128460
Even these aftermarket bushings:
Delphi No: TD1629W
Febi No: 34748.
Unlike the factory rubber bush, the 40BR is manufactured from our specially formulated, UK-made polyurethane.
And that changes everything.
Fiesta Mk7 Rear Axle Bush – Polybush 40BR
Why Polyurethane Outperforms Rubber
Let’s clear something up: this isn’t about turning your Fiesta into a track car. This is about making it better at being a daily driver.
Here’s why polyurethane makes sense on the rear axle:
1. It Doesn’t Degrade Like Rubber
Rubber is vulnerable to:
Oil contamination
Road salt
Heat cycling
Age hardening
Polyurethane is resistant to all of the above. It won’t crack, perish or soften in the same way. That means:
No premature failure
No repeated rear axle bush replacement
No coming back to the same job in 18 months (or sometimes as little as MOT to MOT)
If you’re looking up rear axle bushes Ford Fiesta cost, it’s worth considering the long-term picture. Fit them once. Do it properly. Our bushes are great for people who want to book their car in, get the work done and never need to look at it again. Rubber might have a low up-front cost, but replacing it every year doesn’t make financial sense.
2. Retains Comfort – Without the Sloppiness
There’s a misconception that polyurethane equals a harsh ride. That’s true of some race-spec bushes. It’s not true of ours.
The 40BR is engineered to:
Control unwanted rear beam movement
Maintain correct axle geometry
Absorb road vibration
Retain Comfort By Fitting 40BR
The results?
You retain everyday ride comfort, but lose the rear-end wobble and knock. The car feels tighter and more planted, especially under braking and on roundabouts.
On a Ford Fiesta Mk7 rear axle, that balance is exactly what you want.
3. Sharper Handling Without Trying to Be “Sporty”
Even if you don’t drive a Fiesta ST, you’ll notice the difference.
More predictable rear end
Improved stability on uneven roads
Better response to steering inputs
For Fiesta ST rear axle owners, it’s even more noticeable – but for standard models, it simply makes the car feel fresher and less worn.
It’s refinement, not aggression – A product you’d be happy putting on your mum’s car.
Why We Sell Them as a Pair?
Polyurethane behaves differently from rubber; you must replace these bushes in pairs.
Mixing one old rubber bush with one polyurethane bush will create uneven compliance across the rear axle. That can affect braking stability and handling balance.
Additionally, if one bush has failed, realistically, the other side will fail soon too. So taking the car off the road once, having one labour bill and one inconvenience is better.
As such, we supply them as matched sets. It’s the correct way to do the job… Again, do it once, do it right!
Installation – Straightforward and Affordable
Good news: this isn’t a nightmare job.
On the Mk7 Fiesta:
The rear beam stays on the car
The old plastic-shelled bushes are hammered out
The new Polybush units are pushed in by hand
A competent DIYer with simple hand tools can tackle it at home. Alternatively, most garages charge a fairly modest amount because the job is straightforward and not time-consuming.
Simple, hassle-free installation that gets you back on the road quickly.
Compared with some bush changes, this is refreshingly simple.
If you’ve been pricing up Ford Fiesta rear axle bush replacement cost, you’ll likely find labour is reasonable – and with polyurethane, you won’t be repeating it.
Common Search Questions – Answered
“Is this the same as Ford Fiesta rear subframe bushes?”
On the Mk7 Fiesta, the torsion beam effectively acts as the rear subframe. When people search for rear subframe bushes Ford Fiesta or Ford Fiesta rear subframe bushes, they’re usually referring to these rear beam bushes.
“Is this relevant to other Fiesta models?”
Whilst we make bushes for other fiesta’s, the main focus here is the Mk7:
Owners of earlier models (like 2007 Ford Fiesta rear axle or Mk6 Fiesta rear axle bushes) will require different part numbers, all of which we have HERE
“What about Fiesta Mk8 bushes?”
The Mk8 uses a different rear suspension layout, so the bushes differ.
However, we do offer suspension bushes for these models, you can find them HERE
When Should You Replace Rear Axle Bushes?
If your Ford Fiesta rear suspension feels:
Noisy at the back
Loose under braking
Unsettled mid-corner
Clonking when pulling away
It’s worth inspecting the rear axle bushes Fiesta owners often overlook.
On many Mk7s, they’re worn by 60–80k miles. On cars used for short trips or city driving, sometimes sooner.
Why We Recommend the Polybush 40BR
We fit them to our own daily-driving Ford Fiesta’s! We wouldn’t fit rubber again!
Not because rubber is terrible – but because it’s a consumable part in this location. The rear beam places a constant rotational load through those bushes. Polyurethane handles that load better, maintains its shape, and keeps the axle located correctly.
40BR Fitted to Staff Member Mike’s 2015 Ford Fiesta MK7
With Polybush, you get:
Longer service life
Improved stability
Maintained ride comfort
Better value over time
And you stop chasing rear-end noises.
The Bottom Line
Our Polybush 40BR Rear Axle Bush is a simple upgrade that solves a very common problem on the Mk7 Fiesta and Fiesta ST. Fit them as a pair, refresh the rear of the car properly, and you’ll be reminded how composed and solid a Fiesta should feel.
Sometimes the best upgrades aren’t about performance – they’re about restoring the car to how it should have felt all along.
Solving the Mitsubishi Outlander PHEV’s Most Common Mounting Problem – Polybush 17AW
The Outlander PHEV’s Balance of Efficiency and Engineering
Since its launch in 2012, the Mitsubishi Outlander Mk3 PHEV (GF, GG, ZJ, ZK, ZL) has been a game-changer in the plug-in hybrid market. It offers electric efficiency combined with petrol reliability, making it one of the most popular hybrid SUVs in the UK and Europe.
However, beneath the smooth, silent running of its electric powertrain lies a known weak spot – the rear motor mount, front bracket bush. Owners and technicians alike have found that this particular bush wears prematurely, creating unwanted noise, vibration, and harshness (NVH) that detracts from the refined feel of the vehicle.
17AW Fitted To The OEM Mitsubishi Outlander Motor Mount Housing.
The Problem: OEM Rear Motor Mount Front Bracket Bush Failure
At the heart of this issue is the Rear Motor Mount Front Bracket Bush, found in the rear motor mount assembly (OEM part numbers 3517A090 and 3517A053). This bush plays a vital role: it supports the rear electric drive motor and isolates vibrations from the chassis, ensuring smooth power delivery between electric and petrol modes.
Symptoms of Bush Wear or Failure:
Noticeable vibration through the cabin, especially under acceleration
A “clunk” or jolt when transitioning between drive and regeneration modes
Increased drivetrain movement and harshness when engaging drive or reverse
Reduced comfort and refinement
Hybrid systems generate high torque at low RPM, which puts significant stress on these bushes. Over time, the original rubber compound softens, splits, or even separates from its metal sleeve. Unfortunately, replacement of the full OEM mount is costly – and using the same rubber component means the issue will likely reoccur.
Instead of replacing the entire OEM mount, the Polybush 17AW allows technicians and owners to replace only the worn bush within the existing bracket. This makes it a cost-effective, long-term upgrade that maintains the vehicle’s comfort while greatly improving durability.
Key Features of the Polybush 17AW:
Direct-fit design – Installs into the original mount housing (OEM 3517A090 / 3517A053)
OEM comfort, Polybush longevity – Retains ride quality while improving bush life
Resistant to wear and deformation – Polyurethane resists oil, heat, and road contaminants
Reduces drivetrain movement – Improves response and stability during acceleration
Manufactured and tested in the UK – Ensuring consistent quality and precision
Polybush 17AW, Replacing OE Reference: 3517A053, Part of 3517A090,
Retaining Comfort Without Compromise
One of the biggest advantages of Polybush’s approach is that it doesn’t trade comfort for performance. The 17AWbush has been carefully tuned to maintain the Outlander’s factory refinement, ensuring that vibrations remain isolated while providing firmer support for the hybrid drivetrain.
This means drivers enjoy:
Improved throttle response
Reduced cabin vibration
Greater drivetrain longevity
A more consistent hybrid driving experience
Why the OEM Bush Fails – and How Polybush Fixes It
Rubber bushes like the OEM 3517A090 / 3517A053 are prone to fatigue from repeated load cycles, especially in hybrid vehicles where torque delivery is instantaneous. The soft compound eventually degrades, allowing excess engine and motor movement that stresses surrounding components.
Polybush polyurethane, however, is chemically resistant and mechanically stable. It doesn’t compress or perish like rubber, and its precision moulding ensures proper alignment and load distribution. As a result, Polybush 17AW eliminates the play that leads to premature wear and failure – without increasing NVH.
Simple Installation, Big Improvement
Replacing the bush is straightforward for workshops and experienced DIY enthusiasts. The existing mount is removed, the worn OEM bush pressed out, and the Polybush 17AW pressed in using standard tools. The result is a refreshed, strengthened mount that restores the feel and performance of the Outlander PHEV.
Fitment Summary
Specification
Details
Vehicle
Mitsubishi Outlander Mk3 PHEV
Years
2012–2021
Chassis Codes
GF, GG, ZJ, ZK, ZL
OEM Part Numbers
3517A090 / 3517A053
Polybush Replacement
17AW
Position
Rear Motor Mount Front Bracket Bush
In Summary
The Mitsubishi Outlander Mk3 PHEV is a reliable and innovative hybrid SUV, but its rear motor mount front bracket bush remains a common weak point. The Polybush 17AW replacement provides the perfect upgrade – retaining comfort, improving longevity, and preventing the all-too-familiar vibrations caused by OEM bush failure.
Polybush 44CB: The Ultimate Front Wishbone Front Bush Upgrade for Audi, VW, Seat & Skoda
When it comes to replacing front suspension bushes on Audi, Volkswagen, Seat, and Skoda models, part numbers like 1K0 407 182, 5Q0 407 182, 1K0 407 182 F, Delphi TD521W, and Febi 24390 are among the most common.
If you’re searching for a long-lasting, easy-fit upgrade for these OEM parts, look no further than the Polybush 44CB – a UK-made polyurethane suspension bush designed for effortless installation and a lifetime of consistent performance.
Redesigned with ease of fitment in mind, the new Top Hat-style 44CB ensures quick, accurate installation and a perfect fit. It’s also the ideal upgrade for vehicles already fitted with Polybush 44EX, delivering improved control and refined handling without sacrificing ride comfort.
Polybush 44CB Fitted To Arm – Replacing 1K0-407-182, 1K0-407-182-F, 5Q0-407-182
Why Choose Polybush 44CB Over Rubber or Generic Polyurethane?
If your car’s suspension is still running original rubber wishbone bushes, chances are they’ve begun to crack, perish, or soften over time. Even aftermarket rubber replacements don’t last long when exposed to oil, UV light, and road grime.
Here’s why Polybush 44CB is a smarter, longer-lasting choice:
Longer-Lasting Performance
Manufactured in the UK from a unique automotive-grade polyurethane, Polybush bushes resist oil, fuel, UV, and ageing. They won’t split or degrade like rubber, giving you years of reliable service and sharper handling.
Improved Handling & Steering Response
A firmer, precisely engineered material reduces unwanted bushing flex. The result? More consistent wheel alignment, better steering feedback, and tighter control under braking and cornering — without harshness.
ORIGINAL EQUIPMENT – 1K0-407-182, 1K0-407-182-F, 5Q0-407-182 – Removed From Arm – You Can See There’s Lots of Flex
Comfort Intact
Unlike overly hard polyurethane alternatives, Polybush bushes are carefully tuned to retain OE comfort while enhancing stability. Perfect for daily drivers, fast-road use, or vehicles carrying heavier loads.
No Grease, No Squeaks
Polybush bushes are dry-fit – no messy greasing or special compounds required. Once installed, they stay silent and consistent mile after mile, without the need to re-grease like other manufacturers.
Made in the UK | ISO 9001 Certified
Every Polybush product is manufactured in the UK to exacting standards and ISO:9001 certified, ensuring precision fitment, performance, and durability.
Redesigned for Simplicity: The Top Hat Advantage
The latest 44CB Top Hat-style design makes installation easier than ever. The new profile allows for a smoother, straighter fit into the wishbone with less effort and no specialist tools.
For workshops and home mechanics alike, that means less time on the ramp and a perfect alignment every time.
Already using our Polybush 44EX? The 44CBis the natural next step — offering a compatible, refined upgrade that enhances both comfort and performance.
Fast Road & Lightly Modified Cars – More control, less flex.
Older Models – Replace perished or unavailable OEM bushes.
Fleet & 4×4 Vehicles – Reliable, long-life suspension solution – The perfect solution for Taxi’s, Police, Ambulance or First Responder vehicles, where reliability is key.
Skoda Octavia Taxi – Fitted with Polybush Polyurethane Suspension Bushings
Polybush achieves the perfect balance — OEM comfort with upgraded performance and durability.
Upgrade to Polybush 44CB Today
The Polybush 44CB is a direct replacement for: OEM 1K0 407 182, 1K0 407 182 F, 5Q0 407 182, Delphi TD521W, and Febi 24390.
Whether you’re refreshing your Audi A3, VW Golf, Skoda Octavia, or Seat Leon, this British-made polyurethane upgrade delivers sharper handling, longer life, and a smoother ride.
Polaris Rangers are built for work — trusted by farmers, groundskeepers, estate managers and off-road enthusiasts alike.
But even the toughest UTVs (Utility Task Vehicles) have a weak link: their suspension bushes.
From brand-new Ranger 1000 Crew models to well-used Ranger 800s, owners across the UK & US (and beyond) have reported premature bush wear.
The issue is simple — the factory-fitted hard, non-flexible Nylon-like bushes can’t withstand the constant punishment of off-road use, mud, chemicals, and load stress.
That’s where Polybush comes in. Manufactured in the UK and proven in the field, Polybush’s polyurethane suspension bushes transform the way your Polaris handles, lasts, and performs — turning early failures into long-term reliability.
Why OEM Polaris Bushes Fail
Rubber is soft, cheap, and comfortable — but on working vehicles, it’s also vulnerable. Constant flexing and exposure to contaminants like oil, fuel, and cleaning chemicals cause rubber to perish, crack and split. That’s why your Polaris doesn’t have rubber bushes; it has hard plastic bushes. But when you add in heavy loads, side stresses, and daily use, it’s no surprise many Polaris Rangers develop knocking noises, vague steering, or uneven tyre wear within months.
Tyre Wear Caused By Failing Bushes
Common failure symptoms include:
Excessive movement in wishbones (Control Arms & A-Arms)
Uneven tyre wear or steering pull
Suspension clunks or squeaks
Poor stability under load
Once this happens, alignment suffers, tyres wear faster, and your Ranger loses that planted, confident feel it had when new.
The Polybush Solution
Polybush’s precision-engineered polyurethane bushes directly replace Polaris OEM rubber components, eliminating the weaknesses of rubber while preserving comfort and flexibility.
Unlike rubber and Nylon, polyurethane resists oil, fuel, UV, and high-pressure washing — meaning your suspension geometry remains correct and consistent for the life of the vehicle.
Polybush 53M
Polaris Ranger Lower Shock Bushing – Part of OEM 7043753
All Polybush Polaris kits are supplied ready to fit and cross-referenced with OEM part numbers, so you can find the correct replacement whether you’re searching by Polaris part number or Polybush reference.
Our Product Range: Polybush Kits for Polaris Ranger
We’ve developed a complete range of replacement polyurethane bushes to suit the entire Polaris Ranger family — from the dependable 500 EFI to the advanced XP Kinetic.
Each kit replaces known weak points in the suspension system and includes components for control arms, shock absorber mounts, anti-roll bars, and cargo box pivots.
Polybush Part No.
Description / Fitment
OEM Reference
Kit 228
Front Wishbone (A-Arm) Kit (M10)
5452233, 5139966
Kit 229
Rear Wishbone (A-Arm) & Hub Kit (M10)
5452233, 5139966
Kit 230
Front Drop Link (Linkage Bar) Kit
5416013, 5415470
Kit 231
Rear Drop Link (Linkage Bar) Kit
5456858
Kit 232
Shock Absorber Kit (Front or Rear)
7043753
53A
Front Lower Wishbone (A-Arm) Bush
5439874, 5138797
53B
Rear Wishbone (A-Arm) Upper & Lower Inner Bush
5439270, 5137591
53C
Rear Lower Wishbone (A-Arm) Outer Bush
5439270, 5137593
53D
Rear Upper Wishbone (A-Arm) Outer Bush
5439270, 5137592
53E
Front & Rear Wishbone (A-Arm) to Subframe Bush (M10)
5452233, 5139966
53F
Rear Upright (Weld-Control Arm) Lower Bushing
5452271, 5139991
53G
Rear Upright (Weld-Control Arm) Upper Bushing
5452233, 5139990
53H
Rear Anti-Roll Bar (Stabilizer) Bush 20.7mm
5456858
53J
Front Anti-Roll Bar (Stabilizer) Bush 15.875mm
5465925
53K
Front & Rear Drop Link (Linkage Bar) Bushing
5416013, 5415470
53L
Front or Rear Shock Absorber Lower Bushing
7043753
53M
Front or Rear Shock Absorber Upper Bushing
7043753
53N
Roller-Cam Latch Bush
5458307
53P
Front Drop Link (Torsion Bar Linkage) Lower Bushing
Polybush bushes are available for every major Polaris Ranger model from 2010 onwards. Below is a breakdown of common factory issues and how Polybush solves them.
OEM rubber bushes in the control arms (A-Arms) often deform quickly, leading to vague steering and noise. Polybush 53A and 53E replace these with durable polyurethane, maintaining correct alignment even under heavy loads.
The most common complaint is excessive play in the lower wishbone (A-Arm) bushes and rear hub mounts. Our kits 228 and 229 replace OEM 5452233 and 5139966 bushes, restoring precision and stability.
The 800’s heavy-duty chassis puts real strain on the anti-roll bar and rear upright bushes. Our 53F and 53H bushes prevent deflection and extend lifespan dramatically.
Diesel torque and extra vibration destroy OEM rubber bushes in short order. Polybush polyurethane eliminates premature wear and isolates vibration without sacrificing comfort.
A powerful workhorse with a known weak point — the lower control arm (A-Arm) and rear hub bushes. Polybush kits 234 and 237 provide long-term stability, with polyurethane that won’t compress or crack.
Owners often report poor alignment and a harsh knocking under load. Our complete replacement kits include 53A–53M to ensure every control arm (A-Arm) and shock pivot is properly supported.
The electric XP Kinetic’s instant torque and quiet running make bushing quality vital. Our polyurethane bushes maintain geometry without introducing noise or vibration, ensuring smooth, silent performance.
For electric and estate-use Rangers, silent operation is essential. Polybush 53L and 53M provide durable, noise-free shock absorber mounts that last for years without deterioration.
Tested and Proven by John Osman Groundcare
We don’t just make bushes — we test them in real-world conditions with professionals who know these machines inside out.
John Osman Groundcare in the UK is one of the country’s leading Polaris dealers and service specialists. They don’t just sell and maintain Polaris Rangers — they also rent them out and know exactly where the factory parts fall short.
“We’ve seen brand new Rangers come back with failed bushes within months. By fitting Polybush from new, we stop the problem before it starts — saving time, cost, and customer frustration.” — Luke, John Osman Groundcare
Many of their new machines now leave the showroom fitted with Polybush bushes from day one — ensuring reliability for years to come.
Q: Are Polybush bushes stiffer than factory-fitted bushes? A: In this case, our polyurethane bushes are engineered to be more flexible than OEM, improving ride comfort, control and longevity.
Q: Will Polybush bushes fit my US-spec Polaris Ranger? A: Yes — our fitments match global OEM part numbers and specifications.
Q: Can I install Polybush myself? A: Most bushes are direct replacements using standard tools. For professional installation, visit your local Polaris specialist, such as John Osman Groundcare.
Q: How long do Polybush bushes last? A: Polybush bushes regularly outlast OEM several times over, even under commercial or agricultural use.
Q: Where can I buy Polybush Polaris bushes? A: Directly through Polybush.co.uk or via authorised Polaris service centres.
In Summary
If you own a Polaris Ranger, you’ve likely experienced premature bush failure — but you don’t have to live with it.
Polybush’s UK-made polyurethane bushes provide a permanent fix for worn control arm (A-Arm), shock absorber, and anti-roll bar bushes (Sway Bar), delivering improved comfort, sharper handling, and long-term reliability.
From Ranger 500 to XP Kinetic, from John Osman Groundcare’s workshop to farms and estates nationwide — Polybush keeps working vehicles working.
If you run a Transit, it earns its keep. Whether it’s carrying tools, materials, deliveries, a camper conversion or towing kit, it’s under load far more often than a typical car.
And that’s exactly why the standard lower torque mount — the “dogbone” mount — becomes a weak point.
On paper, the lower torque mount controls engine movement under acceleration and braking. In reality, in a working Transit, it’s dealing with:
Heavy payloads
Stop–start driving
Hill starts under load
Towing
Constant gear changes
Engine braking
The standard mount uses rubber. That’s fine on a lightly used passenger vehicle. But on a Transit that’s earning money every day, rubber simply doesn’t hold up.
OEM Bush Failure
What Actually Happens
Over time the rubber:
Softens from engine heat
Degrades from oil contamination
Tears under repeated torque load
Compresses and loses shape
You’ll start to notice:
Clunks when pulling away
Excess engine movement
Harsh vibration through the cabin
Gear change movement feeling sloppy
A quick look through Transit owner groups and forums shows this isn’t rare. Owners regularly report “dogbone mount gone again” or engine movement issues returning within a short period after fitting another rubber replacement. The problem isn’t always the brand. It’s the material.
Why It’s Worse in a Transit Than a Car
Here’s the important bit: the Transit platform is designed to carry weight. That means higher torque loading through the drivetrain compared with a typical passenger car.
So even if the original mount lasted reasonably well in a lighter vehicle, once you’re:
Running at 3.5 tonnes
Towing regularly
Running fleet mileage
Living in it as a camper
…the stress multiplies.
Rubber creeps under sustained load. It deforms. Once it starts moving excessively, it accelerates its own failure.
The 40DQ Solution: Reinforce, Don’t Replace With the Same Weakness
Rather than replacing the whole mount with another rubber unit that will eventually fail again, the 40DQ insert fits into the OEM housing and reinforces it with high-grade polyurethane.
That gives you:
Controlled engine movement
Reduced stress on surrounding components
Far greater resistance to oil and heat
Long-term dimensional stability
It’s not about making the van harsh or uncomfortable. It’s about restoring proper torque control without introducing unnecessary vibration.
For a working vehicle, that balance matters.
Why Polyurethane Is the Right Material Here
Rubber has one main advantage: it’s cheap and compliant when new.
Polyurethane, on the other hand, offers:
Superior load-bearing capability
Far greater resistance to oil and road contamination
Minimal long-term deformation
Stable performance across temperature changes
In a high-load application like a Transit lower torque mount, those properties matter more than ultra-soft initial compliance.
You don’t want the engine flopping around under load. You want it controlled.
Polyurethane maintains that control for years, not months.
Who This Is Really For
This insert makes sense if you:
Run a trade van that’s always loaded
Manage a fleet and want fewer repeat failures
Use your Transit for towing
Have converted it to a camper and added weight
Are simply tired of replacing dogbone mounts
If your van works hard, the mount needs to be up to it.
40DQ – Installed in OEM Arm
Compatible with OEM part numbers:
1771506
1786184
2015369
BK21-6P082-AC
BK21-6P082-AD
BK21-6P082-AE
Febi 174862
The Bottom Line
The lower torque mount on the Ford Transit V362 and V363 is a known wear point under real-world working conditions. Replacing rubber with more rubber doesn’t solve the underlying weakness.
Less movement. Less repeat failure. More confidence in a van that earns its keep.
If you rely on your Transit every day, it makes sense to fit a mount solution built for how these vans are actually used — not just how they’re tested in a lab.
