306.01.0041.01 Compatible Clutch Servo Repair Kit — Volvo & Renault

What does a clutch servo repair kit do?

This clutch servo repair kit is engineered to restore the efficient operation of clutch actuation systems in heavy commercial vehicles. By replacing worn seals, O-rings, or boots, technicians can effectively refurbish the clutch servo, ensuring smooth gear transitions and consistent pedal feel. This kit is an economical solution for maintaining high-performance systems without replacing the entire assembly.

Compatible vehicles and engines

The kit is compatible with a wide range of heavy-duty vehicles, including Volvo models such as the FH series (FH4/FH5, FH13, FH16), FMX, FM, and VNL, as well as Renault Trucks models like the Premium, Kerax, and T series. It also fits various configurations of Volvo FE, VHD, and Mack Granite engines. Selecting the correct kit based on vehicle model and engine type ensures precise fitment across these diverse heavy commercial applications.

Installation and maintenance guidance

For optimal results, technicians should verify the cylinder type—whether external, concentric, or air-assisted—before installation. It is essential to check that the piston surface is free from scoring or corrosion; if the bore is damaged, a complete unit replacement may be required. Always ensure that the hydraulic fluid used matches the manufacturer's specifications to prevent elastomer swelling.

When to choose a repair kit vs replacement

Regular inspection of the clutch servo during scheduled maintenance can prevent unexpected downtime. If leaks are detected only at the seal level while the bore remains intact, this repair kit provides a reliable restoration path for the vehicle's clutch system.

OE cross-reference

306.01.0041.01 (Clutch Servo Repair Kit) is the equivalent of the Renault Trucks and Volvo OE numbers. This part directly replaces Renault Trucks OE numbers 7421965284S1, 7422327072S1. It also replaces Volvo OE numbers 21965284S1, 22327072S1.