8N7770 Connecting Rod Bearing for Caterpillar

The 8N7770 is a connecting rod bearing for Caterpillar equipment. It is used with Caterpillar D379, D398, D399 and G379/G398/G399 engine series in engine, generator, industrial and ship equipment applications. This is a new aftermarket spare part manufactured by CTP (Costex Tractor Parts).

Fitment

The part is listed for the following Caterpillar engine and generator applications:

• D379B
• D398B
• D399

The part is listed for the following Caterpillar industrial engine models:

• D379
• D379B
• D398
• D398B
• D399
• G379
• G379A
• G398
• G399

The part is listed for the following Caterpillar ship equipment engine models:

• D379A
• D379B
• D398A
• D398B
• D399

Fitment is associated with Caterpillar engine and generator kits, industrial engines and ship equipment using the listed D379, D398, D399, G379, G379A, G398 and G399 engine models. The model designations D379B, D398B and D399 appear in more than one application group in the available fitment data.

Cross-reference numbers

• 8N-7770
• 8N7770

8N7770 and 8N-7770 are the part number formats identified for this connecting rod bearing.

Specifications

The available product data identifies the component as a connecting rod bearing and provides the listed overall package or part dimensions in inches and centimetres. Bearing undersize or oversize selection should be verified against the engine configuration and crankshaft measurements before installation.