Product Description
Cummins 3864458 OEM Engine Oil Cooler Gasket (Cooler to Filter Head) – Ram 5.9L 2003–2007
The Cummins 3864458 OEM Engine Oil Cooler Gasket is a genuine Cummins replacement gasket designed to seal the engine oil cooler to the oil filter head on 2003–2007 Dodge Ram trucks equipped with the 5.9L Cummins diesel engine. Manufactured to Cummins OEM specifications, this gasket helps prevent oil leaks, maintain proper lubrication system integrity, and ensure reliable engine performance.
Whether you are replacing a leaking oil cooler gasket during routine maintenance or completing a larger engine repair, the Cummins 3864458 gasket provides the proper fit, sealing capability, and durability expected from a genuine OEM Cummins component. Using an OEM gasket helps eliminate fitment issues commonly associated with aftermarket alternatives while ensuring long-term reliability.
Features
- Genuine Cummins OEM replacement gasket
- Seals oil cooler to oil filter head assembly
- Helps prevent engine oil leaks
- Direct replacement for worn or damaged gaskets
- Manufactured to Cummins factory specifications
- Designed for proper sealing and durability
- OEM fit, function, and reliability
- Ideal for maintenance and engine repair projects
Fitment
- 2003 Dodge Ram 2500 5.9L Cummins
- 2004 Dodge Ram 2500 5.9L Cummins
- 2005 Dodge Ram 2500 5.9L Cummins
- 2006 Dodge Ram 2500 5.9L Cummins
- 2007 Dodge Ram 2500 5.9L Cummins
- 2003 Dodge Ram 3500 5.9L Cummins
- 2004 Dodge Ram 3500 5.9L Cummins
- 2005 Dodge Ram 3500 5.9L Cummins
- 2006 Dodge Ram 3500 5.9L Cummins
- 2007 Dodge Ram 3500 5.9L Cummins
Note: Always verify your engine serial number and application before ordering. This gasket is specifically designed for the oil cooler to oil filter head connection on applicable 5.9L Cummins engines.
What's Included
- Cummins 3864458 OEM Oil Cooler Gasket
Specifications
- Manufacturer: Cummins
- Part Number: 3864458
- Product Type: Engine Oil Cooler Gasket
- Location: Oil Cooler to Oil Filter Head
- Material: OEM Sealing Material
- Fitment: 2003–2007 Ram 2500/3500 5.9L Cummins
- Engine Compatibility: 5.9L ISB Cummins Diesel
- Installation Type: Direct Replacement
- OEM Replacement: Yes
- Application: Engine Lubrication System
Cross Reference Numbers
3864458
FAQ
What does the Cummins 3864458 gasket seal?
This gasket seals the connection between the engine oil cooler and the oil filter head assembly to help prevent engine oil leaks.
Is this a genuine Cummins part?
Yes. The 3864458 is a genuine Cummins OEM replacement gasket manufactured to factory specifications.
What vehicles does this gasket fit?
This gasket is commonly used on 2003–2007 Dodge Ram 2500 and 3500 trucks equipped with the 5.9L Cummins diesel engine.
Should I replace this gasket during an oil cooler repair?
Yes. Whenever the oil cooler or filter head assembly is removed, replacing the gasket is recommended to ensure a proper seal and prevent future leaks.
Can a failed oil cooler gasket cause oil leaks?
Yes. Over time, the gasket can become brittle or damaged, allowing oil to leak from the oil cooler and filter head connection.
Why choose a genuine Cummins gasket?
Genuine Cummins components are engineered to meet original factory specifications, ensuring proper fitment, sealing performance, and long-term reliability.
