4456001 Brake Caliper Mechanism Repair Kit — MAN Compatible

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 force-transmission and automatic adjustment assembly inside air disc brake calipers. By replacing only the internal components, this kit restores the essential braking function without requiring a complete caliper replacement, making it an efficient choice for heavy commercial vehicle maintenance.

Compatible vehicles and brands

This component is specifically compatible with MAN and Renault Trucks vehicles. It is engineered to work within the complex braking systems of these heavy commercial brands, ensuring that the internal lever arm, eccentric bearing, and adjuster spindle function correctly under high-load conditions.

Maintenance and installation guidance

For workshop technicians, this kit simplifies the maintenance process by providing all necessary internal parts in a single package. When inspecting brake systems, check for uneven pad wear or changes in pedal response to determine if an internal mechanism renewal is required to maintain optimal braking force.

Troubleshooting and system checks

Regular inspection of the caliper mechanism helps prevent total system failure. Ensuring that the automatic adjuster spindle and sealing elements are in good condition is vital for maintaining proper pad clearance during heavy-duty operations.

OE cross-reference

4456001 (Mechanism Repair Kit) is the equivalent of the MAN, Meritor and Renault Trucks OE numbers. This part directly replaces MAN OE numbers 81504550001, 81504550001. It also replaces Meritor OE number SP7971 and Renault Trucks OE number 5000823232.