Product Description
Cummins 5473331 — Connecting Rod Bearing Set (Standard Size)
MPN: 5473331 | Also Known As: con-rod bearings, rod bearing kit (STD) | Cross-Refs: 3901170, 3901230, 3939859, 3969562, 3971970, 4893693, 4932952, 5287910
Why This Part
- ✓ OE clearances & metallurgy to protect crank journals under load.
- ✓ Direct-fit for 2003–2018 Ram 5.9L/6.7L ISB applications (verify by ESN).
- ✓ Standard size shell pair—ideal for stock rebuilds when crank is in spec.
- ✓ Restores oil film stability and quiet operation.
Quick Specs
| Type | Connecting rod bearing kit (pair of shells) |
|---|---|
| OE Part # | 5473331 (Standard size) |
| Oversize Options | +0.25 (4932375), +0.50 (4932376), +0.75 (4932377), +1.00 (4932378) |
| Qty Required | 1 kit per connecting rod (order 6 kits for a 6-cyl engine) |
Verified Fitment (Automotive)
| Year Range | Engine | Chassis |
|---|---|---|
| 2003–2007 | Ram 5.9L ISB (24V Common-Rail) | Ram 2500/3500 |
| 2007.5–2018 | Ram 6.7L ISB (24V Common-Rail) | Ram 2500/3500 |
Industrial/Off-Highway: Used on select ISB/QSB platforms (e.g., Stage V ISB4.5/QSB4.5). Always confirm by Engine Serial Number (ESN).
Often Paired With
- Rod Bolts: Cummins 4891179 (replace torque-to-yield bolts during rebuild)
- Main Bearings: OE main bearing set to match crank condition/size
- Assembly Lube & Plastigage: verify oil clearance during assembly
- Fresh oil & filter for first start & post break-in
What’s In The Box
- (1) Genuine Cummins Connecting Rod Bearing Kit, STD size (5473331)
- Includes shell pair for one connecting rod
Install Tips
- Measure journal & housing bores; confirm STD size is correct before install.
- Use assembly lube; verify clearance with Plastigage or micrometer method.
- Torque rod bolts to spec; replace rod bolts if stretched or TTY style.
- Prime oil system, monitor oil pressure and noise on first start.
FAQ
WILL THIS FIT MY 2003–2018 5.9L/6.7L CUMMINS RAM?Yes—5473331 is commonly used on 2003–2007 5.9L and 2007.5–2018 6.7L ISB engines. Always verify by ESN and crank journal size before ordering.
IS THIS STANDARD SIZE? WHAT IF MY CRANK IS UNDER/OVERSIZE?This kit is Standard (STD). Oversizes are available: +0.25 (4932375), +0.50 (4932376), +0.75 (4932377), +1.00 (4932378). Measure and choose accordingly.
HOW MANY KITS DO I NEED?Order one kit per connecting rod. For a 6-cylinder ISB you’ll typically need 6 kits.
IS THIS A GENUINE CUMMINS PART?Yes—OE Cummins 5473331 with factory materials and geometry.
SHOULD I REPLACE ROD BOLTS DURING A BEARING JOB?Recommended—rod bolts are often torque-to-yield. Replace with OE 4891179 and torque per service manual.
