Special Offers
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3801260 Main Bearing-standard Set
This standard set of main bearings is specifically designed for Cummins engines. The bearings are made from high-quality materials to ensure durability and long-lasting performance. The OE/OEM part number for this set is 3801260 and the...Regular price $130.20Regular price $130.20 -
3801261 Main Bearing .010 Set
This set of main bearings is specifically designed for Cummins engines. The bearings are made from high-quality materials to ensure durability and long-lasting performance. The OE/OEM part number for this set is 3801261 and the manufacturer...Regular price $139.50Regular price $139.50 -
3801262 Main Bearing Set(020)
This set of main bearings is specifically designed for Cummins engines. The bearings are made from high-quality materials to ensure durability and long-lasting performance. The OE/OEM part number for this set is 3801261 and the manufacturer part...Sale price $149.99Regular price $205.31Sale price $149.99Regular price $205.31 -
3804713 Main Bearing Set
Ensure reliable performance with the 3804713 Main Bearing Set, designed for Cummins Engine QST30. Compatible with part numbers 2881829 and 2881828, this set delivers durability and precision for demanding engine applications. 3804713 Main Bearing Set PN NAME...Regular price $899.00Regular price $899.00 -
3896335 Camshaft Thrust Support
The Camshaft Thrust Support, also known as the Camshaft End Plug, is a small but important component in an engine's valvetrain. Its purpose is to prevent excessive forward and backward movement of the camshaft during operation...Regular price $37.96Regular price $37.96 -
3900967 Main Bearing Cap
The 3900967 Main Bearing Cap is designed for Cummins Engine QSB 6BT models, compatible with part numbers 3903492, 3913917, 3936791, 3974157, and 5314775. Ensure reliable engine performance with this precision-engineered replacement component. Supersedes:3903492 3913917 3936791 3974157...Regular price $99.00Regular price $99.00
Main bearings are precision-engineered bearings that support the crankshaft inside the engine block. They sit between the crankshaft's main journals and the engine block's bearing saddles, allowing the crankshaft to rotate smoothly at high speed while carrying the forces generated by combustion. They also maintain the critical oil clearance that allows a thin film of oil to separate the crankshaft from the bearing surface, preventing metal-to-metal contact.