Advice Blog Commercial
February 10, 2026
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
4AX
Number of bushes:
OEM number: 504039506
Vehicle Sets
4AY
Number of bushes:
OEM number: 504112265
Kits
Bushes Per Vehicle Set: 14
View Kit Contents
Kit 196
Kits
Bushes Per Vehicle Set: 14
View Kit Contents
Vehicle Sets
4AX
Number of bushes:
OEM number: 504039506
Vehicle Sets
4AY
Number of bushes:
OEM number: 504112265
Kits
Bushes Per Vehicle Set: 12
View Kit Contents
Kit 176
Kits
Bushes Per Vehicle Set: 12
View Kit Contents
Vehicle Sets
OE Reference: 504039506
Bushes Per Vehicle Set: 1
Vehicle Sets
OE Reference: 504039506
Bushes Per Vehicle Set: 1
Vehicle Sets
OE Reference: 504112265
Bushes Per Vehicle Set: 1
Vehicle Sets
OE Reference: 504112265
Bushes Per Vehicle Set: 1
Vehicle Sets
OE Reference: 8581021
Bushes Per Vehicle Set: 2
Vehicle Sets
OE Reference: 8581021
Bushes Per Vehicle Set: 2
Vehicle Sets
OE Reference: 93801556
Bushes Per Vehicle Set: 2
Vehicle Sets
OE Reference: 93801556
Bushes Per Vehicle Set: 2
Polybush – Thinsulate Beanie
Bushes Per Vehicle Set: 2
Bushes Per Vehicle Set: 2
Bushes Per Vehicle Set: 1
What Do The Different Grades Mean?
Tow Bar Ball Cover Protective Cap
Bushes Per Vehicle Set: 1
Photos
Fitting Videos
Specifications
The Iveco Daily MK3 (1999–2006) became a popular choice for minibus operators, commercial fleets and specialist vehicle conversions thanks to its strong chassis design and reliable driveline.
With many vehicles now operating at high mileage, worn suspension bushes are a common issue, particularly on vehicles used for passenger transport, shuttle services and council-operated fleets.
As the factory rubber bushes degrade, operators often experience increased vibration, suspension movement, steering instability and uneven tyre wear.
Polybush polyurethane suspension bushes provide a durable solution for these problems. Engineered as a direct replacement for the original rubber components, Polybush bushes offer greater resistance to wear, improved suspension control and longer service intervals.
For fleet operators, workshops and minibus specialists, upgrading to Polybush bushes helps keep the Iveco Daily MK3 suspension performing reliably in demanding service environments.
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