Product Description
Interstate-McBee M-4892795 Connecting Rod Bearing – .010 Undersize (Lower) – 2003–2018 5.9L/6.7L Cummins
Aftermarket replacement lower connecting rod bearing shell for 2003–2018 Dodge Ram 2500/3500 with 5.9L or 6.7L Cummins ISB. Sized .010" undersize for use with a crankshaft that has been ground 0.010" under. Sold individually.
- Correct sizing: .010" undersize for reground crank journals.
- Lower shell only: Pair with the matching upper shell (same size) during service.
- Direct replacement: Fits OEM dimensions for factory connecting rods.
- Service-ready: Ideal for engine refreshes and in-frame bearing jobs.
Specifications
| Brand | Interstate-McBee |
| Part Number | M-4892795 |
| Bearing Size | .010" undersize (0.25 mm) — for 0.010" under crank journals |
| Position | Connecting rod bearing — lower shell |
| Sold As | Each (1 lower shell) |
| Quantity Required | 6 lower shells (one per rod) for complete engine service |
| Engine | 5.9L Cummins ISB (2003–2007), 6.7L Cummins ISB (2007.5–2018) |
| Applications | Ram 2500/3500 with applicable 5.9L/6.7L Cummins; verify by engine serial number (ESN) |
What’s Included
- (1) Connecting rod bearing lower shell, .010" undersize — P/N M-4892795
Vehicle Fitment
Always confirm by ESN and bearing size before ordering.
- Ram 2500/3500 — 5.9L Cummins ISB (Common Rail): 2003–2007
- Ram 2500/3500 — 6.7L Cummins ISB: 2007.5–2018
Installation Notes
- Match sizes: Use the same undersize (.010) for both upper and lower shells on the same journal; do not mix standard and undersize bearings.
- Measure clearance: Verify oil clearance with plastigage or mic/dial bore gauge per Cummins spec.
- Cleanliness is critical: Ensure journals and bearing saddles are clean, dry, and free of debris before assembly; lubricate with assembly lube at install.
- Torque procedure: Follow the factory rod bolt torque/angle specs and sequence from the Cummins service manual.
Recommended/Related Parts
- Matching upper connecting rod bearing shell (.010" undersize)
- Standard size and other undersize rod bearings (if your crank is not .010" under)
- Main bearing set (matching size), rod bolts, assembly lube
Why Buy From CPP Diesel
- Diesel specialists with ESN-verified fitment support
- Fast shipping and easy returns
- Huge selection of Cummins internal engine parts
FAQ
What does “.010 undersize” mean?
The crankshaft rod journals have been ground 0.010" smaller than stock. You must use .010" undersize bearings to restore proper oil clearance.
Is this the upper and lower pair?
No. This listing is for the lower shell only. Order the matching upper shell in the same .010" size to complete each rod journal.
Will this fit my 12-valve 1989–1998 engine?
No. This part is for 2003–2018 5.9L/6.7L Cummins ISB applications. For 12-valve 6BT, see the correct bearings for those years.
How many do I need?
Six lower shells for a full set on an inline-six. We recommend replacing both upper and lower shells on all six rods during service.
