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A4420110259 Mercedes-Benz Compatible Piston & Liner Shim

1100 02 023

Summary

Precision 0.20 mm Piston & Liner Shim designed for Mercedes-Benz engines. Features a 153.50 mm outside diameter and a 146.90 mm inside diameter to ensure correct liner protrusion and engine sealing in heavy commercial vehicle applications. Equivalent to OE Mercedes-Benz A4420110259.

Product identifiers
EAN Code8699031003276
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Compatible OEM Codes

  • MERCEDES BENZ
    • 442 011 02 59
    • 442 011 01 59
    • 442 011 00 59

Description

What does a piston and liner shim do?

This piston and liner shim is a critical adjustment component used during engine overhauls to set the exact liner protrusion within the cylinder block. By providing a precise thickness, this shim ensures the cylinder head gasket receives the correct clamping pressure, which is vital for maintaining compression and preventing leaks in heavy-duty diesel engines.

Compatibility and engine fitment

This specific shim is compatible with Mercedes-Benz engines and is manufactured to meet strict industrial standards for durability. It is designed to withstand the high thermal and mechanical stresses encountered in heavy commercial vehicle engines, ensuring long-term sealing integrity during operation.

Installation and maintenance guidance

When replacing cylinder liners, technicians must measure the liner seat to select the appropriate thickness from a graduated series. This 0.20 mm shim is part of a range of thicknesses available to achieve the exact required clearance. Proper installation is essential to prevent liner movement or head gasket failure.

Troubleshooting engine sealing

For optimal performance, always verify that the shim dimensions match the engine specifications before assembly. This component helps maintain efficient combustion and fuel economy by ensuring a stable cylinder geometry under load.

OE cross-reference

1100 02 023 (Piston & Liner Shim) is the equivalent of the Mercedes-Benz OE number. This part directly replaces Mercedes-Benz OE number A4420110259.

Technical Specifications

Technical Specifications
Outside Diameter (D)153,50 mm
Inside Diameter (d)146,90 mm
Thickness (s)0,20 mm
Number of Packages10
ApplicationØ 128

Other OEMs

MERCEDES BENZ

  • A4420110259
  • A4420110159
  • A4420110059
  • 4420110259
  • 4420110159
  • 4420110059
  • 442.011.0259
  • 442.011.02.59
  • 442.011.0159
  • 442.011.01.59
  • 442.011.0059
  • 442.011.00.59
  • 442 011 0259
  • 442 011 0159
  • 442 011 0059
  • 442 011 02 59
  • 442 011 01 59
  • 442 011 00 59

Related Products

Compatible Vehicles

Compatible Vehicles
BrandModelModel TypeEngine
MERCEDES BENZ

FAQ

What is the purpose of a piston and liner shim?
A piston and liner shim is used to adjust the liner protrusion height when installing a new cylinder liner, ensuring the correct clamping force on the head gasket.
How do I select the correct thickness for my engine?
The thickness must be selected based on precise measurements of the liner seat after installation to ensure it falls within the required manufacturer tolerance.
Can this shim be used in any engine?
This specific 0.20 mm shim is designed for Mercedes-Benz applications; always verify compatibility with your specific engine model before installation.
What are the consequences of incorrect shim thickness?
Incorrect thickness can lead to improper liner protrusion, which may cause head gasket failure, loss of compression, or coolant leaks.
What are the OE reference numbers of this part?
1100 02 023 directly replaces Mercedes-Benz OE number A4420110259.