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Heating and Cooling Oil and Fluid Coolers

Mishimoto

Mishimoto 15-18 Dodge RAM 6.7L Cummins Transmission Cooler

$616.00 $559.95 Save $56.05

SKU: M00C MMTC-RAM-15SL

In Stock
In Stock
Ships by Jul 31
Free Shipping over $100
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Easy — 1–2 hours

Description

Part #: MMTC-RAM-15SL

There's no greater enemy for a transmission than heat. Whether your 2015-2018 RAM 6.7L Cummins is a dedicated tow vehicle, hardworking fleet truck, or a daily driver with a liking for the dragstrip, you need to ensure that your transmission runs cool. Luckily, Mishimoto has developed a direct-fit transmission cooler to do just that. Our 2015-2018 RAM 6.7L Cummins transmission cooler utilizes a tube-and-fin core with internal fins to balance flow with efficient cooling. With a massive 112-percent greater core volume, 237-percent increase in fin area, and 226-percent increase in fluid capacity, this trans cooler is a huge improvement over the stock unit. To make even better use of that extra core volume, the Mishimoto transmission cooler utilizes fins within the tubes to not only add more cooling surface area, but also ensure more of the fluid contacts the tube, leading to better cooling efficiency. All these improvements make the Mishimoto transmission cooler the ideal replacement for your stock transmission cooler.Installation of the Mishimoto 2015-2018 RAM 6.7L Cummins transmission cooler requires no cutting or other modifications and includes all hardware needed for a fast and easy install. Like all Mishimoto products, this transmission cooler is backed up by our Lifetime Warranty with Accident Protection for worry free cooling as long as you own it.

Features:

  • Direct fit for 2015-2018 RAM 6.7L Cummins
  • 112% increase in core volume over stock cooler
  • 237% increase in external fin area over stock cooler
  • 226% increase in fluid capacity over stock cooler
  • Internal fins distribute fluid throughout the tube for more efficient cooling
  • Patent #D940,014
  • Mishimoto Lifetime Warranty

Automatic transmission oil cooler designed to regulate fluid temperature and prevent overheating. Enhances transmission longevity, maintains performance, and features durable construction with a precise fit.

MIA's Description

The Mishimoto MMTC-RAM-15SL Transmission Cooler for 2015-2018 RAM 6.7L Cummins trucks features a tube-and-fin core design, offering a 112% increase in core volume, 237% increase in external fin area, and 226% increase in fluid capacity over stock. It is a direct-fit upgrade, improving cooling efficiency and extending transmission life.

Fitment

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Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

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Specifications

BrandMishimoto
Part NumberM00C MMTC-RAM-15SL

Buy with Confidence

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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