Product Description
The CUMMINS 3975818 OEM ENGINE OIL COOLER is designed for 2007.5–2024 Ram 2500/3500 6.7L Cummins ISB diesel engines. This genuine Cummins oil cooler helps regulate engine oil temperature, maintain proper oil viscosity, and protect critical internal engine components.
Use this part when servicing a leaking, restricted, contaminated, or failed engine oil cooler. Always verify fitment by year, make, model, engine, and engine serial number before ordering.
FEATURES
- Genuine Cummins OEM engine oil cooler
- Direct-fit replacement for 6.7L Cummins ISB applications
- Designed for 2007.5–2024 Ram diesel trucks
- Helps regulate engine oil temperature
- Supports proper oil flow, cooling, and engine reliability
- Recommended for maintenance, repair, or rebuild work
FITMENT
- 2007.5–2024 Ram 2500 6.7L Cummins
- 2007.5–2024 Ram 3500 6.7L Cummins
- Select Cummins ISB 6.7L and QSB 6.7L applications
WHAT'S INCLUDED
- 1 Cummins 3975818 OEM Engine Oil Cooler
CROSS-REFERENCE AND RELATED PRODUCTS
- Cummins 3975818
- Interstate-McBee M-3975818
- Oil cooler gasket set
- Oil filter housing components
- Oil cooler mounting hardware
SPECIFICATIONS
- Manufacturer: Cummins
- Part Number: 3975818
- Part Type: Engine Oil Cooler
- Engine Compatibility: 6.7L Cummins ISB
- Fitment Years: 2007.5–2024
- Vehicle Application: Ram 2500/3500
- Condition: New
- Price: $456.14
- Shipping: Free Shipping
FAQ
Will this part fit my truck?
This part fits the applications listed above. Always verify your year, make, model, engine, and engine serial number before ordering.
Is this a direct replacement?
Yes. Cummins 3975818 is intended as a direct-fit OEM replacement engine oil cooler for listed 6.7L Cummins applications.
What is included?
This listing includes one Cummins 3975818 OEM engine oil cooler.
When should an engine oil cooler be replaced?
Replacement may be needed if the cooler is leaking, restricted, contaminated, damaged, or no longer maintaining proper engine oil temperature.
Do I need any related parts?
Inspect related gaskets, seals, oil filter housing components, coolant components, and mounting hardware during installation and replace them as needed.
