This Clevite P-Series connecting rod bearing fits the GM Duramax 6.6L LP5 diesel V8 in 2017-2025 applications. It is a 0.25 mm undersize bearing sold individually. Clevite P-Series bearings are intended for rebuilds where more demanding use is expected, such as heavy duty, motorsports or street performance. As the most versatile Clevite replacement bearing, the P-Series suits most OE applications, and its tri-metal design has more load capacity than bi-metal bearings, making it a suitable upgrade from bi-metal.
Specifications:
- Type: Connecting rod bearing, P-Series (sold each)
- Size: 0.25 mm undersize
- Construction: tri-metal (higher load capacity than bi-metal)
- Engine: GM Duramax 6.6L LP5 diesel V8 (2017-2025)
- Part number: CB2030P25MM
Engine Application: GM Duramax 6.6L LP5 diesel V8 (2017-2025).
FAQ
What engine does the Clevite CB2030P25MM fit?
It fits the GM Duramax 6.6L LP5 diesel V8 in 2017-2025 applications.
What does P-Series mean?
P-Series is Clevite's versatile replacement bearing line. It suits most OE applications and more demanding use such as heavy duty, motorsports or street performance, and its tri-metal design has more load capacity than bi-metal bearings.
What does the 25MM in the part number mean?
It indicates a 0.25 mm undersize bearing, intended for a crankshaft whose rod journals have been machined that far below standard size. Confirm your journal diameter before ordering.
How many of these bearings do I need?
It is sold individually (each). A V8 has eight connecting rods, so a full rebuild needs eight; order the quantity your build requires.

