View our Specials! Coupon Code: SaveIn2026
Tein Suspension Spring and Coilover Sale
X
Vehicle Set: Click here to shop All Ram 3500 parts.

Ram 3500 Transmission Coolers

Looking for aftermarket parts to modify or upgrade your Ram 3500 with transmission coolers? At Tunersports.com we carry a huge selection of the top name brand performance transmission cooler parts and accessories.

Transmission Cooler Parts:

Only show in-stock parts

BD Diesel Xtruded Trans Coolers

BD Diesel
BD Diesel Xtruded Trans Coolers 1030606-1/2
IN STOCK - LOW
1030606-1/2
Coolers, providing 22% more cooling over other designs. The 200 Micro Extruded passages provide a large surface area to transfer heat for external air flow cooling while turbulent oil flow design promotes a more complete cooling. Large 5/8-inch ports prevents inlet/outlet restriction and furnace bra...
BD Diesel Xtruded Trans Oil Cooler - 1/2 inch Cooler Lines
2011-2013 Ram 3500 ST
2011-2017 Ram 3500 Laramie / Laramie Longhorn / SLT
2013-2015 Ram 3500 Lone Star
2013-2017 Ram 3500 Big Horn / Tradesman
2014-2015 Ram 3500 Laramie Limited
2016-2017 Ram 3500 Limited
2017-2017 Ram 3500 Lone Star
$746.95
Details
BD Diesel Xtruded Trans Coolers 1030606-DS-12
SHIPS FROM MANUFACTURER
1030606-DS-12
HOT transmission oil has to be COOLED to keep you on the track. Double stacked cores deliver over 40,000 BTU/HR of cooling and over 350% temperature drop versus the factory system - 36% better temperature drop than BD's standard single core kit. The 200 Micro Extruded passages provide a large surfac...
BD Diesel Xtrude Double Stacked Transmission Cooler Kit - Universial 1/2in Tubing
2011-2013 Ram 3500 ST
2011-2016 Ram 3500 Laramie / Laramie Longhorn / SLT
2013-2015 Ram 3500 Lone Star
2013-2016 Ram 3500 Big Horn / Tradesman
2014-2015 Ram 3500 Laramie Limited
2016-2016 Ram 3500 Limited
$999.95

Mishimoto Transmission Coolers

Mishimoto
Mishimoto Transmission Coolers MMTC-RAM-10
IN STOCK
MMTC-RAM-10
Mishimoto's transmission cooler is designed to be a direct fit for the 2010-2012 Dodge 2500/3500 6.7L Cummins and features a tube and fin design optimal for heavy load towing and rapid load changes. This transmission cooler boasts a 60% increase in core volume and an 86% increase in external fin are...
Mishimoto 10-12 Ram 2500/3500 6.7L Cummins Transmission Cooler
2011-2013 Ram 3500 Laramie / Laramie Longhorn / SLT / ST
2013-2013 Ram 3500 Big Horn / Lone Star / Tradesman
$571.95
Details
Mishimoto Transmission Coolers MMTC-RAM-10LK
IN STOCK
MMTC-RAM-10LK
Upgrade your 2010-2012 Dodge Ram 2500/3500 6.7L Cummins with the Mishimoto Transmission Cooler Bypass Kit. Designed for a direct fit, this line kit allows a customer to leave their factory transmission cooler in place, negating the need to discharge the refrigerant in the A/C system, but bypasses th...
Mishimoto 10-12 Ram 2500/3500 6.7L Cummins Transmission Cooler - Bypass
2011-2013 Ram 3500 Laramie / Laramie Longhorn / SLT / ST
2013-2013 Ram 3500 Big Horn / Lone Star / Tradesman
$86.84
Details
Mishimoto Transmission Coolers MMTC-RAM-13SL
IN STOCK
MMTC-RAM-13SL
There's no greater enemy for a transmission than heat. Whether your 2013-2014 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 tr...
Mishimoto 13-14 Dodge RAM 2500/3500 6.7L Cummins Transmission Cooler
2013-2013 Ram 3500 ST
2013-2014 Ram 3500 Big Horn / Laramie / Laramie Longhorn / Lone Star / SLT / Tradesman
2014-2014 Ram 3500 Laramie Limited
$549.95
Details
Mishimoto Transmission Coolers MMTC-RAM-15SL
IN STOCK
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 tr...
Mishimoto 15-18 Dodge RAM 6.7L Cummins Transmission Cooler
2015-2015 Ram 3500 Laramie Limited / Lone Star
2015-2018 Ram 3500 Big Horn / Laramie / Laramie Longhorn / SLT / Tradesman
2016-2018 Ram 3500 Limited
2017-2017 Ram 3500 Lone Star
$559.95
Details
Mishimoto Transmission Coolers MMTC-RAM-19
IN STOCK
MMTC-RAM-19
There's no greater enemy for a transmission than heat. Whether your 2019+ 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 transm...
Mishimoto 2019+ Ram 6.7L Cummins Transmission Cooler
2019-2020 Ram 3500 Laramie Longhorn
2019-2022 Ram 3500 Lone Star
2019-2024 Ram 3500 SLT
2019-2025 Ram 3500 Big Horn / Laramie / Limited / Tradesman
2021-2025 Ram 3500 Limited Longhorn
2024-2025 Ram 3500 Special Service
$529.95
Details
Mishimoto Transmission Coolers MMTC-RAM-TBVFF
OUT OF STOCK
MMTC-RAM-TBVFF
The transmission is the backbone of your 2013-2018 Dodge Ram 6.7L Cummins. It's responsible for transmitting up to 930 lb-ft of torque from the engine to the wheels. That much power generates a lot of heat, and if that heat isn't dissipated, it can destroy your transmission. The transmission cooler ...
Mishimoto 2013+ Dodge Ram 6.7L Cummins Thermal Bypass Valve Kit
2013-2013 Ram 3500 ST
2013-2015 Ram 3500 Lone Star
2013-2018 Ram 3500 Big Horn / Laramie / Laramie Longhorn / SLT / Tradesman
2014-2015 Ram 3500 Laramie Limited
2016-2018 Ram 3500 Limited
2017-2017 Ram 3500 Lone Star
$114.39
Mishimoto Transmission Coolers MMTC-RAM2-TBV
OUT OF STOCK
MMTC-RAM2-TBV
The transmission is the backbone of your RAM. It's responsible for transmitting large amounts of torque from your 6.7L Cummins powerplant, and that torque generates heat. If that heat isn't dissipated, it can destroy your transmission. The transmission cooler does a good job of keeping trans fluid t...
Mishimoto 2019+ RAM 6.7L Cummins Thermal Bypass
2019-2020 Ram 3500 Laramie Longhorn
2019-2022 Ram 3500 Lone Star
2019-2024 Ram 3500 Big Horn / Laramie / Limited / SLT / Tradesman
2021-2024 Ram 3500 Limited Longhorn
2024-2024 Ram 3500 Special Service
$204.95
Mishimoto Transmission Coolers MMTC-RAM2-TBVFF
OUT OF STOCK
MMTC-RAM2-TBVFF
The transmission is the backbone of your RAM. It's responsible for transmitting large amounts of torque from your 6.7L Cummins powerplant, and that torque generates heat. If that heat isn't dissipated, it can destroy your transmission. The transmission cooler does a good job of keeping trans fluid t...
Mishimoto 2019+ RAM 6.7L Cummins Thermal Bypass Full Flow
2019-2020 Ram 3500 Laramie Longhorn
2019-2022 Ram 3500 Lone Star
2019-2024 Ram 3500 Big Horn / Laramie / Limited / SLT / Tradesman
2021-2024 Ram 3500 Limited Longhorn
2024-2024 Ram 3500 Special Service
$114.39