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17 April 2025
Rear axle bush failure is a common problem on many commercial vans and passenger vehicles, particularly those that regularly carry heavy loads or cover high mileages. The Polybush 39X polyurethane rear axle bush has been developed as a durable replacement for the original rubber bushes, helping to reduce unwanted axle movement and maintain consistent handling.
The 39X is designed for a wide range of Citroen, Peugeot, Fiat, Opel, Toyota and Vauxhall vehicles and replaces several original equipment (OE) references, including 5131 H1 and 9681017080.
The original rubber rear axle bushes are designed to provide flexibility and absorb vibration, but they can deteriorate over time. Heat, oil, road contaminants, heavy loads and repeated movement can contribute to cracking, wear and degradation.
As the bush deteriorates, excessive movement around the rear axle can develop. Depending on the vehicle, this may contribute to:
Replacing worn rear axle bushes can help restore the stability and control of the suspension system.
The 39X polyurethane rear axle bush is designed to provide a longer-lasting alternative to conventional rubber bushes.
Polyurethane offers excellent resistance to oil, chemicals, heat, UV exposure and general road conditions. It also maintains its properties over time, helping the bush provide consistent performance throughout its service life.
The 39X has been engineered to reduce unwanted flex while keeping the suspension controlled and predictable. This makes it particularly suitable for commercial vehicles, fleet applications and vehicles that regularly operate under demanding conditions.
The Polybush 39X is suitable for a range of popular cars and commercial vehicles, including:
Always check the vehicle application and OE reference before ordering.
The 39X rear axle bush replaces a number of original equipment references, including:
These references can help you identify the correct rear axle bush for your vehicle.
Rear axle bushes can handle significant loads, particularly on vans used for deliveries, trades, fleet work, and regular equipment transport.
Repeated rear axle bush failure can result in additional maintenance costs and vehicle downtime. A more durable polyurethane replacement can help reduce the frequency of bush replacement while maintaining consistent suspension performance.
The 39X was developed in response to real-world rear axle bush problems experienced by commercial vehicle operators. Polybush has worked with fleet users, including Royal Mail, to develop polyurethane solutions for demanding applications.
Rear Axle Bush – Citroen | Peugeot | Fiat | Opel | Toyota | Vauxhall
Polybush has been manufacturing polyurethane suspension bushes in the UK for decades. Our bushes are developed to provide a balance between durability, suspension control and everyday driving comfort.
The 39X rear axle bush is supplied as a vehicle set containing two polyurethane bushes and is available to order directly from Polybush.
If your vehicle is experiencing worn or deteriorated rear axle bushes, upgrading to the Polybush 39X can provide a durable alternative to standard rubber components.
Upgrade your rear axle bushes with Polybush 39X polyurethane bushes and keep your vehicle performing reliably for longer.
See more suspension bush advice and fitting guides in the Polybush Advice Hub.

Vehicle Sets
OE Reference: 5131 H1, 5131 K0, 5131 F2, 5131 H2, 155255222, 9681017080, 9814211880
Bushes Per Vehicle Set: 2
Product Specifications:
– Bush Type: Rear Axle Bush
– Polybush Part Number: 39X
– Shore A Hardness: 75
– Bush Design: Top Hat
– Contains: 2 x Polyurethane Bushes
– Replaces OEM Part: 5131H1, 9681017080, 155255222, 5131K0, 5131F2, 5131H2, 9814211880, SU001-C2377
– Weight: 2kg
– Delphi No: TD1014W
– Febi No: 37200
Vehicle Fitment:
Citroen Berlingo B9 (2008-2018)
Citroen C4 Grand Picasso Mk1 UA (2008-2013)
Citroen C4 Picasso Mk1 UD (2007-2013)
Peugeot Partner (2008-2018)
Citroen Berlingo ER/EC (2018-2025)
Citroen DS5 KF (2015-2018)
Fiat Doblo 510/511 (2022-2025)
Opel Combo K9 (2018-2025)
Peugeot 5008 0U/0E (2009-2017)
Peugeot Partner K9 (2019-2025)
Toyota Proace City Verso BKY (2019-2025)
Vauxhall Combo Mk4 K9 (2018-2025)
Why Choose Polybush?
If you’re replacing tired, perished rubber bushes, Polybush polyurethane bushes are a smart long-term upgrade. Here’s why:
– Longer Lasting: Polybush suspension bushes are designed to last significantly longer than standard rubber and are resistant to oil, road grime and age-related deterioration.
– Improved Handling: Polyurethane reduces unwanted flex, helping improve steering response, stability and suspension control.
– Comfort Maintained: Engineered to improve steering feedback and control while retaining a comfortable road-going ride.
– No Grease Required: Polybush products are designed for dry fitting, meaning no messy greasing during installation.
– Made in the UK: Manufactured entirely in the UK using Polybush’s specialist polyurethane formulations and production processes.
Key Benefits at a Glance:
– Direct replacement for your original suspension bushes.
– Improved suspension control and drivability
– Resistant to wear, chemicals, oil, UV and weathering
– Manufactured in the UK
– ISO 9001 accredited quality system
Polybush suspension bushes are Ideal for all types of vehicles, including:
– Daily Driven Vehicles: Restore suspension performance while maintaining OE-style comfort.
– Fast Road or Lightly Modified Cars: Improve suspension control without unnecessarily compromising ride quality.
– Classic or Older Models: Replace degraded, cracked or perished original rubber bushes with a durable polyurethane alternative.
– Fleet, Commercial, or 4×4 Vehicles: Improve durability and maintain consistent suspension performance in demanding applications.
Upgrade your bushes today with Polybush – A long-lasting, British-made solution for sharper handling and reliable comfort.
– Trusted UK Manufacturer – Polybush