The Mishimoto transmission cooler for the 2010-2013 Ram 2500/3500 6.7L Cummins is a direct-fit, tube-and-fin upgrade built for heavy towing and rapid load changes, with a 60% increase in core volume and 86% greater external fin area than the stock cooler for superior heat dissipation. It works with the factory or a Mishimoto cooler and pairs with an optional bypass line kit (sold separately) that lets you bypass the factory cooler — useful after a transmission failure where the OEM cooler may be contaminated.
| Brand | Mishimoto |
| Type | Direct-fit transmission cooler |
| Core | Tube-and-fin |
| vs. Stock | +60% core volume, +86% external fin area |
| Optional | Bypass line kit (MMTC-RAM-10LK), sold separately |
| Warranty | Mishimoto Lifetime Warranty |
Documents: Installation Instructions (PDF)
This part fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2010 | Dodge | Ram 2500 | Laramie |
| 2010 | Dodge | Ram 2500 | Power Wagon |
| 2010 | Dodge | Ram 2500 | SLT |
| 2010 | Dodge | Ram 2500 | ST |
| 2010 | Dodge | Ram 2500 | SXT |
| 2010 | Dodge | Ram 2500 | TRX |
| 2010 | Dodge | Ram 3500 | Laramie |
| 2010 | Dodge | Ram 3500 | SLT |
| 2010 | Dodge | Ram 3500 | ST |
| 2013 | Ram | 2500 | Big Horn |
| 2011-2013 | Ram | 2500 | Laramie |
| 2011-2013 | Ram | 2500 | Laramie Longhorn |
| 2013 | Ram | 2500 | Lone Star |
| 2012-2013 | Ram | 2500 | Outdoorsman |
| 2011-2012 | Ram | 2500 | Power Wagon |
| 2011-2013 | Ram | 2500 | SLT |
| 2011-2013 | Ram | 2500 | ST |
| 2013 | Ram | 2500 | Tradesman |
| 2013 | Ram | 3500 | Big Horn |
| 2011-2013 | Ram | 3500 | Laramie |
| 2011-2013 | Ram | 3500 | Laramie Longhorn |
| 2013 | Ram | 3500 | Lone Star |
| 2011-2013 | Ram | 3500 | SLT |
| 2011-2013 | Ram | 3500 | ST |
| 2013 | Ram | 3500 | Tradesman |
