3950218 Volvo B12 D12A Clutch Master Cylinder

What does a clutch master cylinder do?

This clutch master cylinder plays a critical role in the hydraulic actuation of the clutch system, converting pedal pressure into hydraulic force. Built with high-strength components, it ensures reliable engagement and durability under heavy-duty operating conditions.

Vehicle and engine compatibility

This component is specifically compatible with Volvo B12 trucks featuring the D12A engine. It serves as a reliable replacement to maintain optimal hydraulic performance in heavy commercial vehicles.

Installation and maintenance

When installing this master cylinder, technicians should verify the Ø 23,81 mm port alignment and ensure the hydraulic lines are free of debris. Regular inspection of seals and piston movement is recommended to prevent system air ingress.

Troubleshooting and replacement

If you experience a spongy pedal or delayed clutch engagement, this unit provides a high-quality solution to restore pedal feel and system response.

OE cross-reference

306.02.0021 (Master Cylinder) is the equivalent of the Volvo OE number. This part directly replaces Volvo OE number 3950218.