Advice Blog News
November 4, 2025
Speak to one of our experts.
Speak to one of our experts.
We’ve selected the material that offers the best balance of performance and comfort for your vehicle’s needs.
Our Comfort grade bushes are designed to enhance ride quality and minimise road noise, making them ideal for everyday driving. They are softer, providing maximum suspension articulation and a cushioned feel that absorbs bumps and vibrations effectively. This softer composition ensures a smoother, quieter driving experience, especially in Classic cars or Land Rovers. Comfort bushes maintain a balance between originality and ease of driving, catering to those who value a relaxed Factory-Fresh drive.
The Dynamic grade bushes offer a middle ground between Comfort and Performance. They are slightly firmer than the Comfort bushes, which improves handling and cornering response without sacrificing too much ride comfort. These bushes are ideal for drivers who enjoy a more engaging driving experience while still needing a level of comfort for daily use, whilst also being suitable for spirited driving & light track use.
Performance grade bushes are the stiffest of the three, designed for enthusiasts who demand the utmost in handling and control. They offer minimal deflection, enhancing vehicle response and stability during aggressive driving. These bushes are perfect for high-performance or track vehicles where precision and handling are critical. While they might sacrifice some ride comfort, they deliver superior driving dynamics and control, ideal for those who push their vehicle to its limits – Including Towing!
These rods are produced in 90 Shore A which allows them to be machined on a lathe.
Polybush Shop
Vehicle Sets
40CL
Number of bushes:
OEM number: Part of 2337412
Vehicle Sets
40CM
Number of bushes:
OEM number: Part of 2337412
Vehicle Sets
40CN
Number of bushes:
OEM number: 4D0-411-317-K, 8E0-411-317, 8E0-411-318, 8D0-411-317-D, 8D0-411-318-D
Kits
Bushes Per Vehicle Set: 6
View Kit Contents
Vehicle Sets
OE Reference: Part of 2337412
Bushes Per Vehicle Set: 2
Vehicle Sets
OE Reference: Part of 2337412
Bushes Per Vehicle Set: 2
Vehicle Sets
OE Reference: 1528314, 2084199, 2084201
Bushes Per Vehicle Set: 2
Vehicle Sets
OE Reference: 4D0-411-317-K, 8E0-411-317, 8E0-411-318, 8D0-411-317-D, 8D0-411-318-D
Bushes Per Vehicle Set: 2
Polybush – Thinsulate Beanie
Polybush – Baseball Cap
Bushes Per Vehicle Set: 2
Bushes Per Vehicle Set: 1
What Do The Different Grades Mean?
Tow Bar Ball Cover Protective Cap
Photos
Fitting Videos
Specifications
Even a car as recent as the Fiesta Mk8 (2017-2023, including the ST) reaches the point where its factory suspension bushes start to soften, and on a car this sharp from new you notice it early. The steering loses a little of its bite, the back end feels less tied down through a quick direction change, and there is often a light knock from the rear over broken surfaces as the torsion beam mounts begin to move.
Our polyurethane bushes for the Fiesta Mk8 hold the front wishbones and the rear axle firmly in place, so the geometry the ST was set up with stays where it should. The front lower arm bushes take the brunt of hard cornering and heavy braking, and replacing the tired originals brings back the precise turn-in these cars are known for.
You can fit the front wishbone and rear axle bushes as a matched kit rather than one corner at a time. Browse the wider Ford polyurethane bush range, compare the setup with the Fiesta Mk7 ST bushes that came before it, or read up on the Fiesta Mk7 Non ST bushes for the wider platform.
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