
Illustrative photo — the delivered item may differ in appearance. Orders are fulfilled by catalog part number (SKU).
Connecting Rod Bearing Cummins 203663 | 139623, 122173, M-203663, 171748, AK-203663, 171775, WA902-17-6645
High-quality Cummins 203663 connecting rod bearing (.030″ / 0.75mm oversize) designed to restore your engine’s crankshaft to proper working order. Engineered to eliminate excessive rod knock and ensure long-lasting performance in NT855 Small Cam engines.
Description
High-Performance Connecting Rod Bearing for Cummins NT855
The Cummins 203663 is a premium connecting rod bearing designed specifically for NT855 Small Cam engines. This bearing features a .030″ (0.75 mm) oversize specification, making it the ideal choice for restoring worn or machined crankshafts to their proper working clearances. By replacing damaged or worn-out bearings, you can effectively eliminate excessive rod knock and protect your engine from catastrophic failure.
Key Features & Benefits
- Precision Engineering: Manufactured using advanced technologies to meet demanding performance expectations and stringent quality standards.
- Crankshaft Protection: Restores proper oil clearance and working order to the crankshaft, ensuring smooth engine operation.
- Durable Construction: Built with high-strength materials to withstand extreme loads and offer market-leading fatigue resistance.
- Rigorous Testing: Tested in real-life environments to guarantee reliable, long-term service.
Product Specifications
- Part Number: 203663
- Engine Compatibility: Cummins NT855 (Small Cam)
- Size: .030″ Oversize (+0.75 mm)
- Application: Connecting Rod Bearing Shell
