Cylinder Liner Shim (0.010″) Cummins 3924445 | 3914653, J924445

High-Precision Cylinder Liner Shim for Cummins 8.3L Engines

Maintain the structural integrity and performance of your heavy-duty diesel engine with the Cummins 3924445 cylinder liner shim. This precision-engineered shim features a thickness of 0.010 inches (0.25 mm) and is critical for adjusting cylinder liner protrusion (liner height above the deck). Proper liner protrusion is essential to ensure even clamping force on the head gasket, preventing premature gasket failure, coolant leaks, and loss of combustion pressure.

This part is also available under the numbers: 3914653, J924445. Sometimes referred to as a multi-purpose shim, this component is manufactured from durable materials designed to withstand extreme thermal expansion and high-pressure environments within the engine block.

Engine Compatibility and Applications

This cylinder liner shim is designed for a wide range of Cummins 8.3-liter engines, including the following popular models:

• Cummins C Series (6C, 6CT, 6CTA, 6CTAA)
• Cummins ISC
• Cummins ISL
• Cummins QSC 8.3
• Cummins QSL

Key Features and Benefits

• Precise Thickness: Measures exactly 0.010 inches (0.25 mm) to allow accurate deck height adjustments.
• Durable Construction: Built to resist compression and maintain thickness under heavy cylinder head torque.
• Prevents Gasket Failure: Ensures correct liner protrusion to establish a reliable combustion seal.
• Perfect Fitment: Manufactured to exact specifications for seamless integration with Cummins 8.3L cylinder liners.

Cross-Reference / Interchange Part Numbers

This part replaces / is interchangeable with the following part numbers:

• 3924445
• 3914653
• J924445