303.11.0059 MAN Exhaust Brake Valve

What does an exhaust brake valve do?

An exhaust brake valve is a critical component within the engine's exhaust-restriction braking system. It works by restricting the flow of exhaust gases, which increases in-cylinder pressure to provide essential deceleration support for heavy commercial vehicles during long descents or when driving under heavy loads.

Compatible MAN vehicles and engines

This exhaust brake valve is engineered for a wide range of MAN trucks, including the TGX, TGS, TGA, and TGM series. It is compatible with various engine configurations such as the D2676, D2066, and D0836 engines found in models like the MAN TGX I and TGS I. Additionally, it serves various applications in MAN LION'S CITY and TGL series vehicles.

Installation and maintenance guidance

For optimal performance, technicians should ensure that the valve matches the specific engine type and emission standards of the vehicle. Proper installation involves verifying the pneumatic connections and ensuring the actuator functions correctly to maintain consistent braking pressure. Check the compatibility list.

Troubleshooting and selection

Regular inspection of the exhaust system components helps prevent sudden loss of braking assistance. When replacing this valve, verify that all mounting points are secure and that no debris has entered the exhaust manifold path.

OE cross-reference

303.11.0059 (Exhaust Brake Valve) is the equivalent of the MAN and Norgren OE numbers. This part directly replaces MAN OE numbers 51259020082, 51259020084, 51259020123. It also replaces Norgren OE number 4088531.