A0021301115 Compressor Cylinder Head for Mercedes-Benz

What does a compressor cylinder head do?

This compressor cylinder head is the critical cast service part that closes off the top of an air brake compressor's cylinder block and carries the seats for the inlet and discharge valves. It functions to hold compressed air without leaking, routes it through the discharge port, and assists in dissipating compression heat from the body.

Compatible Mercedes-Benz vehicles and engines

This component is compatible with several Mercedes-Benz heavy commercial vehicle models, including the Axor 2 (3344 K, 3344 S, 4144 K, 3344), Citaro (GN3, N, MUE, G, LÜ), and Travego (O 580 series). It is also fitted to various Mercedes-Benz engine configurations such as OM 457 LA and OM 457 HLA, ensuring precise fitment for buses and trucks alike.

Installation and maintenance guidance

Technicians should inspect the cylinder head during pneumatic system overhauls to check for surface cracks or valve seat wear. When performing a rebuild, ensure the mating surfaces are clean to maintain an air-tight seal between the head and the cylinder block. Check all connection ports for debris before installation to prevent system contamination.

System reliability and selection

Maintaining a high-quality cylinder head is essential for stable air pressure in the pneumatic braking system. Using high-strength components helps prevent pressure drops during sustained high-load operation in heavy commercial vehicle fleets.

OE cross-reference

11 25 50 (Compressor Cylinder Head) is the equivalent of the Mercedes-Benz OE number. This part directly replaces Mercedes-Benz OE number A0021301115.