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Main Bearing Set 0.25 mm Cummins 3802011 | 4955856, 3800281, 6732-28-8100
Ensure optimal crankshaft support and engine longevity with this premium 0.25 mm oversize main bearing set for Cummins 4B, 4BT, and ISB 3.9L engines. Engineered to precise tolerances, it restores proper oil clearance and reduces friction in demanding heavy-duty applications.
Description
High-Performance Main Bearing Set (+0.25 mm) for Cummins Engines
Restore your engine’s bottom end to factory-spec performance with this premium 0.25 mm (.010″) oversize main bearing set. Designed specifically for Cummins 4-cylinder diesel engines, this complete set provides the critical support your crankshaft needs to handle high-torque loads, reduce friction, and maintain consistent oil pressure.
Key Features & Benefits
- Precision Engineering: Manufactured to exact dimensional tolerances to ensure a perfect fit and reliable oil clearance.
- Enhanced Durability: Built with advanced multi-layer materials to withstand extreme combustion pressures and high operating temperatures.
- Complete Engine Set: Includes all necessary upper and lower bearing shells, including the thrust bearing, to complete a full engine rebuild.
Technical Specifications
- Oversize: +0.25 mm (+0.010 in)
- Standard Shaft Diameter Reference: 82.987 mm – 83.012 mm / 87.983 mm – 88.016 mm
- Bearing Width: 29 mm
- Thrust Bearing Width: 37.38 mm
Engine Compatibility
This main bearing set is compatible with a wide range of Cummins 4-cylinder diesel engines, including:
- Cummins 4B 3.9L / 4BT 3.9L / 4BTA 3.9L
- Cummins ISB 3.9L / 4ISB 3.9L
- Cummins QSB 4.5L / 4B 4.5L
Please verify your engine serial number (ESN) and required bearing size before ordering to ensure correct fitment.
