303.11.0057.01 Renault Trucks and Volvo Exhaust Brake Valve Overhaul Kit

An exhaust brake valve repair kit is an overhaul set used for renewing the worn internal components of the valve that provides engine braking on heavy commercial vehicle engines. This kit typically contains gaskets, O-rings, a diaphragm, a flap seal, and the necessary springs or pins required to restore functionality. By using this kit, the valve housing is retained while only the sealing and moving components exposed to compressed air and exhaust gas are renewed.

This repair kit is compatible with a wide range of vehicles, including Renault Trucks models like the D, K, T, and C series, as well as various Volvo truck series such as FH, FM, FMX, and FL. It is also suitable for Volvo bus models like the 7900 and 8500. The components are designed to meet the requirements of heavy-duty engines including DXi, DTI11, DTI13, and various Volvo D-series engines.

To ensure proper operation of the engine brake system, technicians should inspect the valve for leaks or improper seating during routine maintenance. When performing the overhaul, ensure that all sealing elements are seated correctly to maintain the necessary exhaust gas restriction required for effective braking during long descents or loaded driving.

Check the compatibility list for specific engine and model fitment.

OE cross-reference

303.11.0057.01 (Exhaust Brake Valve Repair Kit) is the equivalent of the Renault Trucks and Volvo OE numbers. This part directly replaces Renault Trucks OE numbers 7420741660S1, 7420994250S1, 7421379051S1, 7421707055S1, 7421991154S1. It also replaces Volvo OE numbers 20451967S1, 20512836S1, 20561888S1, 20741660S1, 20994250S1, 21379051S1, 21707055S1, 21991154S1.