Description

The 3802070 STD Main Bearing Set is an OEM-grade standard-size crankshaft bearing set engineered to restore proper lubrication clearance, crankshaft stability, and long-lasting durability in heavy-duty diesel engines. Manufactured to strict factory tolerances, these bearings ensure smooth rotation, reduced friction, and optimal oil film strength—critical for preventing engine wear and extending engine life. Worn main bearings can cause low oil pressure, knocking noises, vibration, excessive heat, and even catastrophic crankshaft damage. Replacing them with the 3802070 STD bearing set restores factory-spec alignment, improves engine smoothness, and protects internal components during high-load operation. Ideal for full rebuilds, in-frame overhauls, and preventive maintenance, this standard-size bearing set is trusted by engine rebuilders, fleet technicians, and professional diesel mechanics. ✔ Key Features & Technical Advantages OEM-spec 3802070 STD main bearing set Standard size for engines with original crankshaft dimensions Restores correct oil clearance and crankshaft alignment Improves lubrication, reduces heat & prevents scoring High-strength tri-metal bearing construction for long service life Eliminates bearing knock, vibration, and oil pressure loss Ideal for engine rebuilds, overhauls & heavy-duty repair operations