The Mishimoto Replacement Oil Cooler restores oil cooling on the 2003-2007 Dodge Ram 5.9L Cummins. A clogged or leaking factory cooler reduces heat transfer to the coolant and can thin the oil, leaving critical engine components less protected. This stock-style direct-fit cooler ships with new seals and meets OEM quality standards to deliver the cooling a daily-driven 5.9L Cummins needs. Backed by the Mishimoto Lifetime Warranty.
| Type | Stock replacement oil cooler |
| Application | 2003-2007 Dodge Ram 2500 / 3500 5.9L Cummins |
| Includes | New seals |
| Part Number | MMOC-RAM-03 |
| Warranty | Mishimoto Lifetime Warranty |
This part fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2003,2005-2007 | Dodge | Ram 2500 | Laramie |
| 2003-2007 | Dodge | Ram 2500 | SLT |
| 2006-2007 | Dodge | Ram 2500 | Sport |
| 2003-2007 | Dodge | Ram 2500 | ST |
| 2006-2007 | Dodge | Ram 2500 | TRX4 |
| 2003-2007 | Dodge | Ram 3500 | Laramie |
| 2003-2007 | Dodge | Ram 3500 | SLT |
| 2006-2007 | Dodge | Ram 3500 | Sport |
| 2003-2007 | Dodge | Ram 3500 | ST |
| 2007 | Dodge | Ram 3500 | TRX4 |
Shipping: In-stock orders placed before 3 PM EST ship the same day, and everything else ships within 24 hours. Standard, expedited, and overnight options are available at checkout. Backordered items ship as soon as we get them back in stock. Contact us for lead times. See the full Shipping Policy.
Returns: 30-day returns on new, unused items in original packaging. See the full Refund Policy.
