A4420110159 Mercedes-Benz Compatible Piston & Liner Shim

What does a piston and liner shim do?

This piston and liner shim is a critical adjustment component used to manage the seating of the cylinder liner within the engine block. By precisely controlling the liner protrusion, this part ensures that the cylinder head gasket receives the correct clamping pressure, which is vital for maintaining engine compression and preventing leaks under high pressure.

Engine compatibility

This specific shim is compatible with Mercedes-Benz engines. It is engineered to withstand the intense thermal and mechanical stresses found in heavy commercial vehicle engines, providing a stable interface between the liner and the block seating surface.

Installation and technical specifications

For correct installation, technicians must measure the liner protrusion before selecting the appropriate thickness. This 0.15 mm shim features an outside diameter of 153.50 mm and an inside diameter of 146.90 mm to ensure a precise fit during engine overhauls or liner replacements.

Maintenance guidance

Regular inspection of sealing components during engine service can prevent premature wear and ensure long-term reliability of the combustion chamber seal.

OE cross-reference

1100 02 022 (Piston & Liner Shim) is the equivalent of the Mercedes-Benz OE number. This part directly replaces Mercedes-Benz OE number A4420110159.