21008344 S3 Clutch Servo Repair Kit for Volvo FM

What does a clutch servo repair kit do?

This clutch servo repair kit is engineered to restore the efficient operation of the clutch actuation system. By replacing worn components within the servo, technicians can ensure smooth gear transitions and prevent premature system failure in heavy-duty applications. These high-strength components are essential for maintaining hydraulic or air-assisted pressure within the clutch circuit.

Compatible Volvo FM engines and models

This specific kit is compatible with Volvo FM models, including the FM 460, FM 480, FM 440, and FM 340, as well as various other variants such as the FM 370, FM 400, and FM 420. It is specifically tailored for vehicles utilizing the D11K engine series to ensure precise fitment and performance.

Maintenance and installation guidance

When performing maintenance, technicians should inspect the bore and piston surface to determine if a seal kit is sufficient or if a complete piston assembly is required. Proper installation ensures that the clutch fork receives consistent pressure, preventing slipping or difficult engagement. Regular inspection of these components helps prevent unexpected downtime in fleet operations.

Troubleshooting clutch actuation

If you observe unusual pedal feel or air leaks near the clutch servo, it may be time to inspect the internal seals and O-rings.

OE cross-reference

306.01.0012.03 (Clutch Servo Repair Kit) is the equivalent of the Volvo OE number. This part directly replaces Volvo OE number 21008344S3.