4306009 Mechanism Repair Kit — Volvo and Renault Trucks

What does a mechanism repair kit do?

This mechanism repair kit serves as a comprehensive service set designed to renew the internal moving elements of the adjustment and force transmission assembly within an air disc brake caliper. By replacing only the worn internal components, it allows for efficient maintenance of the braking system without requiring a complete caliper replacement.

Vehicle and system compatibility

This component is specifically engineered to fit Renault Trucks and Volvo vehicles. It functions as an equivalent for worn parts, ensuring that the thrust force from the brake chamber is correctly transferred to the pads while maintaining automatic clearance adjustment. It is compatible with Meritor systems as well.

Installation and maintenance guidance

When performing maintenance, technicians should ensure that the direction of the kit matches the vehicle requirement, as this specific unit is configured for the left-hand (L) side. Proper inspection of the internal housing is recommended before installation to ensure all moving parts function smoothly within the existing caliper shell.

Maintenance and troubleshooting

Regular inspection of these internal mechanisms can prevent uneven pad wear and ensure consistent braking performance across heavy commercial vehicle fleets.

OE cross-reference

4306009 (Mechanism Repair Kit) is the equivalent of the Meritor, Renault Trucks and Volvo OE numbers. This part directly replaces Meritor OE number 68020145. It also replaces Renault Trucks OE number 5006046765 and Volvo OE number 1606775.