Product Description
Cummins 5257364 — Engine Connecting Rod (Fracture-Split)
MPN: 5257364 | Also Known As: con rod, connecting rod | Cross-Refs / Related: 4989162, 4989163, PAI 171629
Why This Part
- ✓ OE fracture-split rod for precise big-end cap alignment.
- ✓ Direct-fit for Ram 6.7L ISB (2007.5–2018) — verify by VIN/ESN.
- ✓ Restores factory strength and balance after damage or overhaul.
- ✓ Genuine Cummins metallurgy and machining for durability.
Quick Specs
| Type | Engine connecting rod (fracture-split / cracked-cap) |
|---|---|
| OE Part # | 5257364 (cross-refs: 4989162, 4989163; PAI 171629) |
| Qty Required | 6 per engine (sold individually) |
| Application Family | ISB/QSB 6.7 (EPA10+), select ISB 4.5 industrial — confirm by ESN |
Verified Fitment (Automotive)
| Year Range | Engine | Chassis |
|---|---|---|
| 2007.5–2018 | Ram 6.7L ISB (24V Common-Rail) | Ram 2500/3500 |
Industrial/Off-Highway: Used primarily on EPA10 ISB/QSB platforms; some sellers note broader ISB/QSB/4B/6B coverage — verify by ESN for non-automotive engines.
Often Paired With
- Piston assemblies (matched to your CPL)
- Connecting rod bearings (order by VIN/ESN & size)
- Rod bolts/nuts (replace if stretched or as required by spec)
- Fresh oil & filter after any bottom-end service
What’s In The Box
- (1) Genuine Cummins Engine Connecting Rod (5257364)
- Bearings/bolts sold separately (see “Often Paired With”).
Install Tips
- Match cap orientation; do not mix caps between rods (fracture-split).
- Measure big-end bore & pin bushing; check side clearance and deck height.
- Use new bearings sized to crank journal; plastigage or mic to confirm oil clearance.
- Torque rod bolts to spec; if torque-to-yield, replace and measure bolt stretch per Cummins procedure.
FAQ
WILL THIS FIT MY 6.7L CUMMINS RAM?Yes—this OE rod is listed for most 2007.5–2018 Ram 6.7L ISB applications. Always confirm by VIN/ESN.
HOW MANY DO I NEED?Six per engine. This item is sold individually so you can buy one or a full set.
WHAT ARE THE RELATED PART NUMBERS?Common cross-refs include 4989162 and 4989163; aftermarket references include PAI 171629.
IS THIS ROD FRACTURE-SPLIT?Yes—it’s a cracked-cap (fracture-split) design to maintain precise big-end alignment.
DO I NEED NEW BEARINGS OR BOLTS?Yes—rod bearings are size-specific and rod bolts should be replaced if torque-to-yield or out of stretch spec. Order by VIN/ESN.
