Product Description
Interstate-McBee M-4932375 (.010) Upper Connecting Rod Bearing – 1989–2002 5.9L Cummins
Premium aftermarket .010" undersize (0.25 mm) upper connecting rod bearing shell for 1989–2002 Dodge Ram 2500/3500 5.9L Cummins (12-valve & early 24-valve ISB). Built to OEM-style tolerances for reliable oil film control and long service life after crank regrind.
- Correct undersize: .010" (0.25 mm) for reground rod journals.
- Upper shell: Piston-side bearing with correct locating features and oiling geometry.
- OEM-style fit: Replacement for Cummins 4932375 (see cross-refs).
- Aftermarket value: Interstate-McBee quality at a smarter price point.
Specifications
| Manufacturer | Interstate-McBee |
|---|---|
| Part Number | M-4932375 |
| OEM Reference | Cummins 4932375 |
| Size | .010" undersize (0.25 mm) |
| Position | Upper (piston-side) connecting rod bearing shell |
| Sold As | Each (quantity per engine varies; see notes below) |
| Cross-Reference | Cummins 3901171 (select B-series applications) |
Vehicle Fitment
Always verify by engine serial number (ESN) for accuracy.
- Dodge Ram 2500/3500 5.9L Cummins
- 1989–1998 12-Valve 6BT
- 1998.5–2002 24-Valve ISB
- Engine Families (reference): B/ISB platforms where 4932375 upper shell is specified.
Ordering Notes
- This listing is one (1) upper shell. A full engine uses 6 uppers and 6 lowers.
- Pair with the lower shell (Interstate-McBee M-4892795, .010") to complete each rod.
- Do not mix standard and undersize shells on the same journal.
Installation Tips
- Measure crank rod journals; confirm .010" undersize spec after machining.
- Clean oil passages; use assembly lube; verify bearing crush and side clearance.
- Torque rod bolts to spec and check oil clearance with plastigage as required.
Why Buy From CPP Diesel
- Diesel experts with ESN-verified fitment support.
- Fast shipping, easy returns, and curated B-Series inventory.
- Bundling options with matching lower shells and main bearings.
FAQ
What does “.010 undersize” mean?It indicates the crank rod journal has been ground .010" smaller than standard. You must use .010" bearing shells to restore proper oil clearance.
Is M-4932375 the upper or lower shell?
M-4932375 is the upper (piston-side) rod bearing shell. Use M-4892795 for the corresponding lower shell in .010".
How many do I need for a 5.9L Cummins?
The inline-6 uses 6 rods. You’ll need 6 uppers (M-4932375) and 6 lowers (M-4892795) for a complete set.
Will this fit both 12-valve and early 24-valve 5.9L?
Yes—listed for 1989–2002 5.9L Cummins (12V & early 24V ISB). Verify by ESN for edge cases.
Can I mix standard with .010" shells?
No. Each journal must use the same size upper and lower shells and match the crank’s finish size.
Product Videos
Custom Field
YEAR 1989-2002
MAKE DODGE
ENGINE 5.9L
