20553587 Clutch Master Cylinder for Volvo NH12

What does a clutch master cylinder do?

This clutch master cylinder serves as the critical component that converts mechanical pedal force into hydraulic pressure, transmitting it through the line to the slave cylinder. Built with high-strength components, it ensures stable operation within the hydraulic control line of the clutch system.

Vehicle and engine compatibility

This part is specifically designed for Volvo NH12 vehicles featuring the D12C engine. It is engineered to meet the rigorous demands of heavy commercial vehicle applications, ensuring seamless integration with existing hydraulic lines and pedal assemblies.

Installation and maintenance

Installation requires careful attention to the Ø28.57 mm port connection to ensure a leak-free seal. Technicians should verify that the mounting-hole spacing and piston stroke align with original specifications to maintain optimal pedal feel and engagement.

Troubleshooting and selection

When replacing this unit, it is recommended to inspect the entire hydraulic circuit for contaminants. Maintaining clean hydraulic fluid helps prevent premature wear of the internal seals and piston within the cylinder.

OE cross-reference

306.02.0020 (Master Cylinder) is the equivalent of the Volvo OE number. This part directly replaces Volvo OE number 20553587.