6857432 Compatible Master Cylinder — Volvo N12

What does a clutch master cylinder do?

This clutch master cylinder serves as a critical component in the hydraulic clutch system by converting mechanical pedal force into hydraulic pressure. This pressure is then transmitted through the line to the slave cylinder to facilitate smooth gear engagement. Built with high-strength components, this unit ensures durability under heavy-duty operating conditions.

Vehicle and engine compatibility

This part is specifically compatible with Volvo N12 trucks equipped with TD122 engines. It functions as a direct replacement for the original unit to maintain precise hydraulic engagement in heavy commercial vehicle applications.

Installation and maintenance

When performing installation, technicians should verify that the Ø23.81 mm port matches the existing system lines. It is recommended to inspect the hydraulic lines and slave cylinder simultaneously to ensure optimal system pressure and prevent premature wear of the new unit.

Selection and troubleshooting

Proper selection is vital for maintaining correct pedal feel and gear shifting accuracy. Ensure the mounting specifications and port sizes align with the vehicle's original requirements to prevent system leaks or pressure loss.

OE cross-reference

306.02.0070 (Master Cylinder) is the equivalent of the Volvo OE number. This part directly replaces Volvo OE number 6857432.