303.11.0056.04 Repair Kit for Exhaust Brake Valves — Renault & Volvo

What is an exhaust brake valve repair kit?

An exhaust brake valve repair kit is an overhaul set designed to renew the internal components of the valve that provides engine braking on heavy-duty commercial vehicle engines. This kit typically contains the necessary gaskets, O-rings, a diaphragm, a flap seal, and the small springs or pins required for a complete service. By renewing these sealing and moving components, the valve housing can be retained while restoring the system's ability to restrict exhaust gas flow and increase in-cylinder pressure.

Compatible vehicles and engines

This repair kit is compatible with a wide range of Renault Trucks models including the C series, K series, KERAX, MAGNUM, PREMIUM 2, and T series, as well as Volvo models such as FH (including FH III/IV), FM (including FM III), FMX (including FMX II/III), and VNL. It supports various engine configurations including DXi, DTI11, DTI13, D11K, D13K, and D16G to ensure precise fitment across different heavy-duty applications.

Maintenance and installation guidance

For workshop technicians, using a dedicated repair kit is an efficient way to maintain the exhaust-restriction engine brake support system without replacing the entire valve assembly. When performing installation or maintenance, it is essential to inspect the valve housing for any signs of wear or debris that could compromise the new seals. Regular inspection of these components helps ensure consistent supplemental braking effect during long descents or loaded highway driving.

System performance benefits

Consult your authorized distributor to ensure this kit matches your specific engine type and valve model.

OE cross-reference

303.11.0056.04 (Exhaust Brake Valve Repair Kit) is the equivalent of the Renault Trucks and Volvo OE numbers. This part directly replaces Renault Trucks OE numbers 7420837594S4, 7421707054S4, 7421991157S4. It also replaces Volvo OE numbers 20837594S4, 21707054S4, 21991157S4.