Description

The C3802071 0.25 mm main bearing set is a high-precision, OEM-grade undersize bearing set designed for diesel engines requiring crankshaft machining or journal regrinding. When a crankshaft is machined undersize by 0.25 mm, these bearings restore the correct oil clearance, lubrication stability, and crankshaft support needed for optimal engine performance. Manufactured using premium tri-metal bearing alloys, this 0.25 mm oversize/undersize bearing set delivers exceptional strength, heat resistance, and wear protection under heavy-load, high-temperature diesel engine operation. Installing C3802071 (0.25 mm) bearings prevents issues such as low oil pressure, bearing knock, vibration, and crankshaft scoring—ensuring long-term durability and reliable engine operation. Ideal for engine rebuild shops, machine shops, fleet maintenance teams, and diesel technicians performing crankshaft repairs or full overhauls. ✔ Key Features & Technical Advantages OEM-spec C3802071 main bearing set – 0.25 mm undersize Designed for crankshafts machined or reground by 0.25 mm Restores proper oil clearance, alignment & lubrication flow Reduces friction, heat buildup, and premature bearing wear High-strength tri-metal construction ensures long service life Prevents low oil pressure, bearing knock, and crankshaft damage Ideal for complete rebuilds, in-frame overhauls, and machining repairs