21965253 S2 Volvo FH D13K Clutch Servo Repair Kit

What does a clutch servo repair kit do?

This clutch servo repair kit is engineered to restore optimal clutch actuation performance by renewing essential sealing elements within the hydraulic or air-assisted circuit. When the cylinder bore and piston remain in good condition, these kits offer an efficient way to maintain system integrity and prevent pressure loss.

Vehicle and engine compatibility

This component is specifically compatible with Volvo FH (FH4/FH5) trucks equipped with D13K engines, including various variants such as the 400, 420, 440, 460, 480, 500, and 540 models. It serves as a precise replacement for Volvo OE-reference components to ensure seamless integration with the vehicle's clutch system.

Installation and maintenance guidance

For professional workshop technicians, it is essential to verify the cylinder type and bore diameter before installation. During the service process, ensure proper lubrication of new seals and correct orientation to prevent premature wear. If the internal cylinder bore shows significant scoring or damage, replacing the complete unit is recommended for long-term reliability.

Service recommendations

Maintaining the clutch servo is critical for smooth gear shifts and reducing driver fatigue in heavy commercial vehicle operations.

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 21965253S2.