Mishimoto 1989-2002 Dodge Ram 5.9L Cummins Replacement Oil Cooler

This Mishimoto performance cooler is a direct-fit upgrade for 1994-2002 Dodge applications covering Ram 2500, Ram 3500. It replaces the weak points of the stock part with stronger materials and better flow or cooling so heat, boost and abuse stay under control on street and track duty. AutoTalent lists verified US-market fitment in the table below.

Why upgrade

Oil is the lifeblood of an engine, and in a hardworking diesel engine like the 1989-2002 Dodge RAM 5.9L Cummins, keeping that oil cool is essential to the engine's health. A clogged or leaking oil cooler can reduce the oil's ability to transfer heat to the coolant, causing thinning and a loss of protection for critical engine components. These kits are engineered around real chassis packaging, so hoses, coolers and adapters line up without fabrication on the listed years. Follow the published torque specs and install guide, reuse sensors where instructed, and confirm clearances if you run other supporting mods. Every unit ships with the Mishimoto Lifetime Warranty for as long as you own it.

Features

• Direct fit for 1989-2002 Dodge RAM 5.9L Cummins
• Replaces clogged or leaking stock oil cooler for renewed reliability
• Meets OEM quality standards to restore daily driving performance
• Includes all gaskets to fit your specific model for a compatible installation
• Mishimoto Lifetime Warranty
• See all benefits
• Direct fit for 1989-2002 Dodge RAM 5.9L Cummins

What's Included

• (1) Oil Cooler
• (3) Oil Cooler Gaskets
• Mishimoto Lifetime Warranty

Specifications

Fitment Notes

Verified against Mishimoto US applications and dealer listing for 1994-2002 (2 rows). Years extended to 2027 where the US model remains in production.

Vehicle Fitment