Illustrative photo — the delivered item may differ in appearance. Orders are fulfilled by catalog part number (SKU).
Engine Piston Cummins 3946153 | 3943708, 3942662, 3800781, 3946154, 3946155, 3948465, 224-3355, 224-3568
Ensure optimal combustion and peak engine performance with this high-quality standard engine piston for Cummins ISB and QSB 5.9L engines. Engineered for durability and precise fitment, it comes complete with the piston pin and retaining clips.
Description
High-Performance Standard Engine Piston for Cummins ISB & QSB 5.9L
Restore your engine’s compression and efficiency with this premium-grade standard (STD) engine piston, specifically designed for Cummins ISB, QSB, and 6BT 5.9L diesel engines. Manufactured from high-strength aluminum alloy, this piston is engineered to withstand extreme combustion temperatures and pressures, ensuring long-lasting durability and reliable operation under heavy-duty conditions.
This piston comes as a complete assembly, including the piston pin and retaining clips, allowing for a seamless installation process. It is designed to meet or exceed standard operational specifications, providing a perfect fit and optimal thermal expansion characteristics.
Technical Specifications:
- Piston Diameter: 102.00 mm
- Combustion Chamber (Bowl) Diameter: 61.00 mm
- Combustion Bowl Depth: 18.00 mm
- Piston Pin Dimensions: 40.00 mm x 83.00 mm
- Compression Height: 71.60 mm
- Total Height: 105.30 mm
- Ring Groove Sizes: 3.0T mm x 2.5 mm x 4.0 mm
- Material: High-grade Aluminum Alloy
Compatible Engine Models:
- Cummins ISB 3.9L & 5.9L
- Cummins QSB 5.9L
- Cummins 6BT / 6BTA 5.9L
Note: Please verify your engine serial number (ESN) and existing piston specifications before purchasing to ensure correct fitment. Pistons that have been installed or show signs of mounting are not eligible for return.
