Cummins 4B3.3 cylinder liner – excavator & forklift

This part fits the 4B3.3 engine model, used in excavators and forklifts. It seals the combustion chamber and protects the cylinder block from high temperature and high pressure. Each piece weighs approximately 3 to 5 kg. During installation, ensure the seat bore is clean, press in evenly using a dedicated tool, and strictly control the fit clearance to prevent deformation.