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The Mishimoto replacement transmission cooler is a direct‑fit OEM‑equivalent unit for 2003–2007 Dodge Ram 5.9L Cummins trucks. It replaces the factory liquid‑to‑liquid cooler to restore proper transmission fluid cooling and prevent coolant contamination in the transmission. Includes a new powder‑coated bracket and brass fittings for straightforward installation and is built to OEM specifications for fit and function with durable corrosion‑resistant aluminum construction.
Mishimoto 03-07 Dodge Ram 5.9L Cummins Replacement Transmission Cooler
