Description

The Main Bearing Set 3800872 (STD) is a premium OEM-grade replacement designed specifically for Cummins diesel engines. This set includes both the standard-size main bearings and matching thrust washers, ensuring stable crankshaft support, proper endplay control, and smooth engine rotation under heavy loads. Manufactured from high-strength, wear-resistant bearing materials, this set delivers long-term durability and consistent oil film protection—even under high RPMs, high combustion pressures, and extended operating hours. Whether you are rebuilding a worn engine or performing preventive maintenance, this main bearing set restores original performance, reduces friction, and protects against crankshaft scoring or premature wear. ✔ Key Features & Technical Benefits OEM-spec replacement for Cummins main bearing set (STD size) Includes thrust washers for proper crankshaft alignment and endplay control Maintains stable crankshaft rotation and oil clearance Reduces friction, heat buildup, and bearing wear Ideal for engine rebuilds, overhauls, and performance restoration Precision-machined materials ensure long lifespan even in harsh conditions Helps prevent crankshaft damage and noise caused by worn bearings