Product Description
Cummins 5291050 — Genuine Engine Oil Pump for 5.9L & 6.7L ISB
MPN: 5291050 | Also Known As: lubricating oil pump, lube oil pump | Common Cross-Refs (ID): Mopar 68489379AA, Cummins 4897481, 4988801
Restore factory oil pressure and flow. The genuine Cummins 5291050 engine oil pump is cataloged for Ram 2500/3500 5.9L & 6.7L applications and widely sold for 2003–2018 coverage. Cummins also notes primary use on later ISB/QSB 6.7 (EPA13) platforms—so for non-automotive or mixed-year builds, verify by VIN/ESN before purchase.
Features & Benefits
- OE pressure & flow to protect bearings, cam, and turbo under load.
- Direct-fit housing and gear set for ISB engines—no modifications required.
- Gear-type design for consistent lubrication and long service life.
- Ideal during overhauls or when correcting low hot-idle oil pressure.
- Genuine Cummins materials and tolerances.
Verified Fitment (Automotive)
| Year Range | Engine | Chassis |
|---|---|---|
| 2003–2007 | 5.9L ISB (Common-Rail) | Ram 2500/3500 |
| 2007.5–2018 | 6.7L ISB | Ram 2500/3500 |
Industrial/Off-Highway: Cummins catalogs this pump as a Lubricating Oil Pump used primarily on EPA13 (Tier 4) 6.7L ISB/QSB engines; verify by ESN for equipment engines or non-Ram use.
Compatibility Notes:
- 1989–2002 (12V/24V VP44): use earlier pump families (e.g., 4939587), not 5291050.
- Because Cummins notes primary use on EPA13 6.7L, confirm by VIN/ESN if your 5.9L/early 6.7L has been rebuilt or uses mixed components.
Specifications
- Type: Engine lubricating (gear-type) oil pump
- OE Part Number: 5291050
- Common Cross-Refs (ID): Mopar 68489379AA; Cummins 4897481, 4988801
- Quantity Required: 1 per engine
Often Paired With
- Pickup tube O-ring & screen (inspect/replace if brittle or damaged)
- Front cover/timing cover gasket set (if removed during service)
- Fresh oil & filter after installation and first heat cycle
What’s In The Box
- (1) Genuine Cummins Engine Oil Pump (5291050)
Installation Tips
- Pre-lube the pump with clean engine oil and verify pickup alignment.
- Inspect the pickup tube O-ring; torque fasteners to spec and check end-play where applicable.
- Prime the system, verify oil pressure on first start, and recheck for leaks after warm-up.
FAQ
WILL THIS FIT MY 2003–2018 RAM 5.9L/6.7L?
Retailers commonly list 5291050 for 2003–2018 5.9L & 6.7L Ram applications. Because Cummins highlights EPA13 6.7L usage, verify by VIN/ESN if your truck has mixed-year components.
WHAT ARE THE COMMON CROSS-REFERENCE NUMBERS?
Mopar 68489379AA and Cummins 4897481 / 4988801 are frequently associated IDs for this pump family.
DOES THIS FIT 1989–2002 TRUCKS?
No—those engines use earlier pump numbers (e.g., 4939587 for 12V/early 24V). Choose by VIN/ESN.
HOW DO I KNOW MY OIL PUMP NEEDS REPLACEMENT?
Low hot-idle oil pressure (with correct viscosity), metallic debris, or excessive wear during teardown are common indicators.
IS THIS A GENUINE CUMMINS PART?
Yes—OE Cummins 5291050.
