4456039 Compatible Mechanism Repair Kit — DAF & Iveco

What does a mechanism repair kit do?

This mechanism repair kit serves as a specialized service set that brings together the wearing moving elements of the adjustment and force transmission mechanism inside an air disc brake caliper. By renewing the internal components rather than the entire caliper housing, this kit provides a cost-effective solution for maintaining heavy commercial vehicle braking systems. It focuses on restoring the integrity of the automatic adjustment assembly and the internal force transmission elements.

Vehicle and system compatibility

This component set is compatible with DAF, Iveco, and Kögel vehicles. It is also designed to work within WABCO systems. These kits are specifically engineered to maintain the necessary pad clearance and pedal response required for heavy-duty operation in demanding environments.

Installation and maintenance guidance

For workshop technicians, installing this kit involves inspecting the caliper housing to ensure it remains sound before replacing the internal lever arm, bushings, or sealing elements. Maintaining correct piston movement and ensuring all internal parts are seated properly is critical for preventing brake drag or uneven wear. Consult your authorized distributor for installation guidance.

Maintenance benefits

Regular inspection of these internal mechanisms can prevent premature failure of the entire caliper assembly. By replacing only the fatigued internal components, fleet managers can significantly reduce maintenance costs while ensuring the braking system meets safety specifications.

OE cross-reference

4456039 (Mechanism Repair Kit) is the equivalent of the DAF, Iveco, Kögel and WABCO OE numbers. This part directly replaces DAF OE number 1505883. It also replaces Iveco OE numbers 118689, 93161255, 93161768, Kögel OE number 8009190 and WABCO OE number 12999410VT.