1280390 Bearing-Rod 0.51-Mm Fits Caterpillar Models

One New Aftermarket Replacement Connecting Rod Bearing (0.020" / 0.51mm Undersize) for Caterpillar (Cat) C-10 and 3176C Engines

This connecting rod bearing is a 0.020-inch (0.51mm) undersize replacement designed for use in Caterpillar C-10 and 3176C diesel engines that have had their crankshaft rod journals machined or are exhibiting wear. It fits between the connecting rod and crankshaft journal, providing a precise, low-friction surface to reduce wear and maintain proper oil clearance during engine operation.

Specifications

• Undersize: 0.020 in. (0.51mm)
• Application: Connecting rod / crankshaft rod journal bearing
• Engine type: Caterpillar C-10 / 3176C inline diesel

Compatible Models

Caterpillar - Articulated Trucks: 725, 730

Caterpillar - Challenger: 65E, 75D, 75E

Caterpillar - Excavators: 345B, 345B II, 345B II MH, 345B L

Caterpillar - Industrial / Truck Engines: C-10, 3176C

Caterpillar - Motor Graders: 140H, 143H, 14H, 160H, 163H

Caterpillar - Pipelayers: 572R II

Caterpillar - Soil Compactors: 815F

Caterpillar - Track-Type Tractors: D7R II

Caterpillar - Track Feller Bunchers: TK1051

Caterpillar - Wheel Dozers: 814F

Caterpillar - Wheel Loaders: 966G II

Caterpillar - Load Haul Dump: R1600G

Caterpillar - Combines: 480

Note: Compatible machines are those powered by the Caterpillar C-10 or 3176C engine. Verify engine serial number and crankshaft journal diameter before ordering to confirm the 0.020" undersize is correct for your application.

Replaces Part Number(s):

1280390, 128-0390

Aftermarket Interchange Numbers

PAI 370122, PAI 370122HP, RB1177K1-020

New aftermarket replacement part - not remanufactured, not used.