21710522 S2 Clutch Servo Repair Kit for Volvo FMX

What does a clutch servo repair kit do?

This clutch servo repair kit is specifically designed to restore the efficiency of the clutch actuation system. It serves as a critical component for maintaining smooth gear transitions and ensuring the longevity of the clutch mechanism under heavy-duty operational conditions.

Vehicle compatibility and engine fitment

The kit is compatible with Volvo FMX vehicles, particularly those utilizing the D11B engine. It is also fitted to various Volvo FM series models, including the FM 300, FM 340, FM 360, FM 370, FM 380, FM 390, FM 400, FM 410, FM 420, FM 430, FM 440, FM 450, FM 460, FM 480, and FM 500. This ensures wide-ranging serviceability across the Volvo heavy commercial vehicle lineup.

Maintenance and installation guidance

Maintenance technicians should inspect the clutch servo during routine service intervals to prevent pressure loss or uneven engagement. Replacing seals and O-rings can be an economical way to maintain system integrity if the piston and bore remain in good condition. Always ensure all connection points are clean during installation to prevent contamination of the hydraulic or pneumatic circuit.

Troubleshooting clutch actuation

Regular monitoring of the clutch engagement smoothness can help identify early signs of seal wear or air leaks within the servo assembly.

OE cross-reference

306.01.0012.02 (Clutch Servo Repair Kit) is the equivalent of the Volvo OE number. This part directly replaces Volvo OE number 21710522S2.