Description

The C3802071 (0.25 mm) main bearing set is a precision-engineered undersized crankshaft bearing set designed for diesel engines that have undergone crankshaft machining or journal regrinding. When a crankshaft is machined undersize by 0.25 mm, these bearings restore correct oil clearance, stabilize lubrication flow, and ensure reliable crankshaft support. Built using high-strength tri-metal alloy construction, this bearing set resists wear, heat, scoring, and fatigue—making it ideal for high-demand diesel applications. Installing C3802071 0.25 mm bearings helps eliminate low oil pressure, bearing knock, vibration, and premature crankshaft failure. Perfect for complete rebuilds, in-frame overhauls, or post-machining crankshaft repairs, these bearings deliver OEM-level reliability and long-term protection. ✔ Key Features & Technical Advantages OEM-spec 0.25 mm undersize main bearing set C3802071 Designed for crankshafts machined undersize by 0.25 mm Restores proper oil clearance, alignment & lubrication flow High-strength tri-metal bearing construction for long service life Reduces friction, heat buildup & internal engine wear Prevents low oil pressure, bearing knock & crankshaft scoring Ideal for rebuild shops, fleet maintenance & heavy-duty diesel engines