Engine overhaul kit for Mercedes-Benz OM421

The engine overhaul kit, identified by part number A4440110210, provides a comprehensive set of internal components for the Mercedes-Benz OM421 engine. This assembly typically includes pistons, piston rings, cylinder liners, connecting rod bearings, main bearings, and a complete set of gaskets and seals. These components are selected to work together to restore the internal clearances and sealing integrity of the engine block and cylinder head assembly.

This kit is specifically configured for the Mercedes-Benz OM421 engine, which is frequently utilized in heavy machinery and industrial crane applications. By replacing these internal parts as a set, maintenance technicians can ensure proper compression, effective lubrication, and smooth mechanical operation. The kit facilitates a thorough engine rebuild, addressing the primary wear points within the power unit to maintain the functional requirements of the machine. Using a matched set of components helps ensure that all internal tolerances are aligned during the assembly process.