Mishimoto 2015-2018 Dodge RAM 6.7L Cummins Transmission Cooler

This Mishimoto performance cooler is a direct-fit upgrade for 2015-2018 Ram applications covering 2500, 2500 Big Horn, 2500 Laramie, 2500 Limited, 2500 Lone Star. It replaces the weak points of the stock part with stronger materials and better flow or cooling so heat, boost and abuse stay under control on street and track duty. AutoTalent lists verified US-market fitment in the table below.

Why upgrade

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. Mishimoto engineers these kits around real chassis packaging, so hoses, coolers and adapters line up without fabrication on the listed years. Follow the published torque specs and install guide, reuse sensors where instructed, and confirm clearances if you run other supporting mods. Every unit ships with the Mishimoto Lifetime Warranty for as long as you own it.

Features

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

What's Included

• Mishimoto Transmission Cooler
• Aluminum Spacers
• Quick-Disconnect Fittings
• Mounting Hardware
• Mishimoto Lifetime Warranty

Specifications

Fitment Notes

Verified against Mishimoto US applications and dealer listing for 2015-2018 (16 rows). Years extended to 2027 where the US model remains in production.

Vehicle Fitment