SKU: 44174415520

Mishimoto 2019+ RAM 6.7L Cummins Thermal Bypass Full Flow

Sale price$89.99 Regular price$99.99
Save 10%

Pay in installments of $25.00 with ShopPay, AfterPay and Klarna

Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Aug 15 - Aug 20

Promo Codes Available:

For Your Every Summer RSVP, with Code: SUMMER15

Description

Mishimoto 2019+ RAM 6.7L Cummins Thermal Bypass Full FlowThe 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 temperatures in check, but only if the fluid can reach it. The stock cooling system of the Aisin AS69RC utilizes an in line thermal bypass valve that

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 temperatures in check, but only if the fluid can reach it. The stock cooling system of the Aisin AS69RC utilizes an in-line thermal bypass valve that controls fluid flow to the transmission cooler. The purpose of this valve is to prevent transmission fluid from flowing to the cooler until it reaches operating temperature. The thermostat inside this valve is prone to failure, however, and when that happens, the fluid never flows to the cooler, and the transmission can overheat. That's why Mishimoto has developed a full-flow thermal bypass valve upgrade for your 2019-2024 RAM 6.7L Cummins. Our CNC-machined aluminum thermal bypass valve not only looks better than the stock unit, but it performs better too. This Mishimoto thermal bypass valve eliminates the internal thermostat, providing full fluid flow to the transmission cooler in all running conditions. This setup is ideal for owners in warm climates, those performing heavy towing, and trucks needing the best possible cooling efficiency for their transmission. The Mishimoto full-flow thermal bypass valve features strategically machined internal passages, providing improved flow over the stock valve for more effective cooling. In addition, cooling fins machined into the valve body add even more heat dissipation. This 2019-2024 RAM 6.7L Cummins Thermal Bypass Full Flow Valve Kit is built to last a lifetime with a durable CNC-machined billet aluminum design and our Mishimoto Lifetime Warranty.

This Part Fits:

Year Make Model Submodel
2019-2024 Ram 2500 Big Horn
2019-2024 Ram 2500 Laramie
2019-2021 Ram 2500 Laramie Longhorn
2019-2024 Ram 2500 Limited
2021-2024 Ram 2500 Limited Longhorn
2019-2024 Ram 2500 Lone Star
2023-2024 Ram 2500 Rebel
2024 Ram 2500 Special Service
2019-2024 Ram 2500 Tradesman
2019-2024 Ram 3500 Big Horn
2019-2024 Ram 3500 Laramie
2019-2020 Ram 3500 Laramie Longhorn
2019-2024 Ram 3500 Limited
2021-2024 Ram 3500 Limited Longhorn
2019-2022 Ram 3500 Lone Star
2019-2024 Ram 3500 SLT
2024 Ram 3500 Special Service
2019-2024 Ram 3500 Tradesman
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 44174415520

Discover Niche Categories That Outsell

Top-Converting Item to Boost Your Average Order

4.9 ★★★★★
Based on 26 reviews
Sort
Highest Rating
Newest First
Oldest First
Product Reviews
B
Verified Purchase
B. Lewis
Bozeman, US
★★★★★ 2
Barebones
Size: UNIT, Color: Navy Blazernew British Tan
Wanted to love it but for the price had next to no compartments for storage. There are better option that are less expensive.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 31, 2025
S
Verified Purchase
Steven M.
Massapequa, US
★★★★★ 5
Ready for the “Wild Elegamce “ ball!
Color: Red, Size: X-Large, Color: Red, Size: X-Large
It runs a little small so even though I usually wear a large, the extra large is good for me as recommended by other buyers. It’s going to be perfect for iur “Wild Elegamce” fundraiser ball in October!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 28, 2026
T
Verified Purchase
Terrance A Durant
Louisville, US
★★★★★ 5
Looks better than the picture
Color: Red, Size: X-Large
Fits as sized
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 31, 2026
B
Verified Purchase
Brittany Jones
Lexington, US
★★★★★ 5
Showstopper
Color: Gold, Size: Medium, Color: Gold, Size: Medium
Theme was Hollywood. It was a real showstopper 10 out of 10 we ordered a medium. He weighs 155 pounds.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 7, 2026
J
Verified Purchase
Joey ZaZa
Lexington, US
★★★★★ 5
This jacket is a head-turner.
Color: Red, Size: X-Large, Color: Red, Size: X-Large
This is a fantastic jacket for the price. I was very impressed by its appearance. I wore the jacket in Las Vegas and got so many compliments from both men and women. Pair this with a black turtleneck and you will be a superstar.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 13, 2026

recommand products