Product Description
The Cummins 4932375 OEM Upper Connecting Rod Bearing (.010 undersize) is a genuine Cummins rod bearing engineered for precise oil clearance and long-term durability in 2003–2018 ISB 5.9L and 6.7L Cummins engines. This .010" undersize upper shell is used when the crankshaft rod journals have been machined or repaired, ensuring proper lubrication film strength and operating pressure under load. Diesel engines demand exact bearing geometry, and genuine Cummins bearings provide unmatched metallurgy, surface finish, and reliability for stock, towing, and performance applications.
Fitment
- 2003–2007 Dodge Ram 2500/3500 with 5.9L ISB Cummins
- 2007.5–2018 Dodge Ram 2500/3500 with 6.7L ISB Cummins
- Industrial, agricultural, and commercial ISB engines (confirm via ESN)
- Designed for crankshafts machined to .010" undersize
Note: Always verify rod journal size using engine serial number (ESN) and micrometer readings before ordering undersize bearings.
Cross-Reference (Cummins-Only)
Related Cummins components commonly serviced during lower-end rebuilds:
• Cummins 3900625 OEM Hex Flange Head Cap Screw
• Cummins 3903924 OEM Timing Pin
• Cummins 3900267 Tappet Cover Bolt Grommet Seal
FAQ
What does .010 undersize mean on Cummins rod bearings?
.010" undersize bearings are used when the crankshaft rod journals have been ground .010" smaller than stock during a rebuild.
Do I need both upper and lower bearings?
Yes. Rod bearings are replaced in complete sets. This listing is for the upper shell, and the matching lower is required for proper clearance.
Can these bearings be used on a standard-size crankshaft?
No. .010 undersize bearings will fail immediately on a standard-diameter crank journal. Always measure before ordering.
Are these bearings compatible with performance builds?
Yes. Genuine Cummins bearings are preferred for towing, heavy-duty use, and mild power upgrades due to accurate oiling and superior metallurgy.
Specifications for cummins 4932375
| Specification | Value |
|---|---|
| Brand | Cummins Genuine Parts |
| Part Number | 4932375 |
| Component Type | Upper Connecting Rod Bearing (.010 Undersize) |
| Engine Platforms | ISB 5.9L (2003–2007), ISB 6.7L (2007.5–2018) |
| UPC | Not Published |
| GTIN | Not Published |
| Cross Reference | Used with .010 undersize crankshaft rod journals |
| E-Codes | N/A |
| Shipping Weight | 0.10 lbs |
| Package Dimensions | 2 x 2 x 1 in |
| Prop 65 Warning | Not Applicable |
