Description

This main bearing set (standard size) is a precision-engineered replacement designed for heavy-duty diesel engines requiring OEM part numbers 3802160 and 3802070 . Main bearings support the crankshaft within the engine block and are critical for maintaining proper oil clearance, smooth rotation, and long-term engine reliability. Manufactured from high-strength, tri-metal bearing alloys , this standard main bearing set is engineered to withstand high crankshaft loads, extreme operating temperatures, and continuous diesel duty cycles. Proper main bearing performance helps prevent crankshaft wear, oil pressure loss, and catastrophic engine failure. This STD main bearing set (1 complete set) is ideal for engine rebuilds, bottom-end overhauls, and preventive maintenance when the crankshaft journals remain within factory specifications. Precision-finished to OEM tolerances, it ensures consistent fitment, proper lubrication flow, and dependable service life. Key Benefits: OEM replacement for 3802160 / 3802070 Standard size for unmachined crankshafts Supports crankshaft alignment and rotation Maintains correct oil clearance and pressure Reduces friction and bearing wear Designed for heavy-duty diesel engine rebuilds