Product Description
MAHLE / CLEVITE MS-2328P-.50MM P-Series main bearing set for the 1989–2018 Cummins 5.9L & 6.7L (12V/24V/ISB). Built with tri-metal (steel/copper-lead/tin) construction for high load capacity, most P-Series mains are full-grooved for improved oil flow and feature high crush for retention and reduced overlay thickness to resist fatigue. Sized 0.50 mm undersize (.020") for cranks ground .020" under.
- Series: P-Series (performance-proven tri-metal)
- Size: .50 mm undersize (.020" under)
- Configuration: Includes upper/lower shells + thrust
- Use: Ideal for stock to performance rebuilds, towing, heavy-duty
Fitment
- 1989–2002 Dodge/Ram 2500, 3500 with 5.9L Cummins (12-valve & 24-valve)
- 2003–2007 Ram 2500/3500 with 5.9L ISB (24-valve common-rail)
- 2007.5–2018 Ram 2500/3500 with 6.7L ISB
- Also fits equivalent 5.9L/6.7L Cummins B-Series/ISB industrial and chassis applications; verify by engine serial/build.
Cross Reference
- Clevite/Mahle: MS-2328P-.50MM
- Cummins (OE set, .020"): 4955861 (alt. kit refs seen: 3802072 range; verify per ESN)
What’s Included
Complete main bearing set with thrust bearing for a .020" under crank (0.50 mm). Lubricant not included.
FAQ
Will these fit my truck?
Yes—if you have a 1989–2018 5.9L or 6.7L Cummins and your crankshaft is ground .020" under (0.50 mm). Always measure/verify size.
Are these tri-metal performance bearings?
Yes, P-Series are tri-metal with high crush and full-groove design for durability and oiling.
Do I need machine work?
Use only on a crankshaft finished to .020" under. Check housing bore and clearance with Plastigage or micrometers to OE spec.
What torque specs should I use?
Follow the Cummins service manual for main cap torque/angle and use proper assembly lube and cleanliness practices.
