At LowPricedAutoParts we proudly offer genuine Enginetech BC204J.50 .50mm Oversize main bearings (5-piece set) designed specifically for the 2001-2024 Chevrolet & GMC 6.6L turbocharged Duramax Diesel engines in Silverado 2500 HD, Sierra 2500 HD and equivalent models after crankshaft grinding.
Manufactured to tight tolerances: shaft diameter 3.1459-3.1466", housing bore 3.3464-3.3472", wall thickness 0.0990-0.0995", width 0.820", oil clearance 0.0009-0.0033". These bearings perform reliably in heavy towing, hauling, and diesel performance conditions typical of these popular trucks.
Key benefits include:
mm Oversize design restores proper clearances on machined journals
Wide oil clearance range accommodates Duramax 6.6L operation
Helps reduce friction and maintain engine efficiency
Whether addressing bearing wear, main knock, or performing preventative maintenance during timing chain, head gasket, or full engine service, these bearings help deliver quiet, dependable performance you can count on.
Always confirm crankshaft journal measurements (machined to matchmm Oversize) and VIN for exact match. Professional installation recommended to verify clearances and follow torque procedures correctly.
Shop confidently with LowPricedAutoPartsfast shipping, expert support, and our commitment to your satisfaction on every Enginetech part. Get your Chevrolet or GMC back to peak reliability today.
