The Mishimoto MMTC‑RAM‑15SL transmission cooler is compatible with RAM 6.7L Cummins from 2015 to 2018 and is engineered to manage the extreme heat generated during heavy-duty driving, towing, and hauling.
This upgrade reduces transmission fluid temperatures, protecting the drivetrain under load and promoting smoother shifts.
It features a tube‑and‑fin core with internal fins, offering a 112% increase in core volume, 237% more fin surface, and 226% greater fluid capacity than stock.
These enhancements ensure fluid stability and improve heat dissipation in demanding conditions.
Constructed from precision CNC‑machined aluminium and finished with a durable powder coat, the cooler resists thermal cycling, corrosion, and road exposure.
High‑quality welding guarantees long‑term structural integrity.
The kit includes all necessary fittings and mounting hardware, allowing straightforward installation with no extra parts, cutting, or trimming required.
Its tube‑and‑fin layout ensures efficient cooling performance and balanced flow.
As towing demands rise, transmission overheating is a key concern for truck owners, and this cooler addresses that challenge with proven performance and robust construction.
Since 2005, Mishimoto has engineered performance cooling solutions tested for reliability, and this transmission cooler continues that tradition, delivering lasting confidence and dependable heat management on every haul.