Engine Piston 1.00mm Oversize Cummins 3919045 | 3928675, 111316, 111316HP

High-Performance 1.00mm Oversize Engine Piston for Cummins B-Series

Keep your heavy-duty diesel engine running at peak efficiency with this premium 1.00mm (.040″) oversize engine piston. Specifically engineered for Cummins B-Series engines, this piston is designed to restore cylinder compression, minimize blow-by, and withstand the extreme thermal and mechanical stresses of turbocharged diesel applications.

Key Features & Benefits

• Precision Engineering: Manufactured to exact dimensional tolerances to guarantee a perfect fit and seamless integration with your engine’s connecting rods and cylinder walls.
• Enhanced Durability: Constructed from high-strength alloys designed to resist thermal fatigue, crown cracking, and ring land wear under heavy loads.
• Complete Assembly: Comes equipped with the piston pin and retaining clips for a more straightforward and reliable installation process.
• Optimal Combustion: Features a 54mm combustion bowl designed to promote efficient fuel-air mixing and clean combustion.

Engine Compatibility

This piston is designed for Cummins B-Series 102mm bore engines, including:

• Cummins 4B / 4BT / 4BTA (3.9L)
• Cummins 6B / 6BT / 6BTA (5.9L)

Technical Specifications

• Bore Diameter: 102 mm (Standard) + 1.00 mm Oversize
• Combustion Bowl Diameter: 54 mm
• Oversize Rating: 1.00 mm (.040 in)