Transmission Coolers Mishimoto 2017+ GMC 6.6L Duramax L5P Transmission Thermal Bypass Valve – Fastmodz
Buy Now, Pay Later Starting at 0% APR
×
0

Your cart is currently empty.

Continue shopping
Total: $0.00
View cart Check out
Toggle menu
0
Black Friday & Cyber Week Has Arrived: Up to 40% OFF! Shop now for big SAVINGS! Offer ends: 2024/12/01 23:59:59 ×
  • Home
  • Mishimoto 2017+ GMC 6.6L Duramax L5P Transmission Thermal Bypass Valve
Sale
Mishimoto 2017+ GMC 6.6L Duramax L5P Transmission Thermal Bypass Valve Kit
Mishimoto 2017+ GMC 6.6L Duramax L5P Transmission Thermal Bypass Valve Kit
Mishimoto 2017+ GMC 6.6L Duramax L5P Transmission Thermal Bypass Valve Kit
Mishimoto 2017+ GMC 6.6L Duramax L5P Transmission Thermal Bypass Valve Kit
Mishimoto 2017+ GMC 6.6L Duramax L5P Transmission Thermal Bypass Valve Kit
Click to zoom in
Load image into Gallery viewer, Mishimoto 2017+ GMC 6.6L Duramax L5P Transmission Thermal Bypass Valve Kit
Load image into Gallery viewer, Mishimoto 2017+ GMC 6.6L Duramax L5P Transmission Thermal Bypass Valve Kit
Load image into Gallery viewer, Mishimoto 2017+ GMC 6.6L Duramax L5P Transmission Thermal Bypass Valve Kit
Load image into Gallery viewer, Mishimoto 2017+ GMC 6.6L Duramax L5P Transmission Thermal Bypass Valve Kit
Load image into Gallery viewer, Mishimoto 2017+ GMC 6.6L Duramax L5P Transmission Thermal Bypass Valve Kit
Description
The Allison transmission is the backbone of your L5P Duramax. It's responsible for transmitting large quantities of torque from your V8 diesel powerplant. This torque generates a lot of heat, and 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 Allison 1000 transmission 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 2017+ Chevrolet/GMC 6.6L Duramax. Our CNC-machined aluminum full-flow 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 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 2017+ Chevrolet/GMC 6.6L Duramax L5P Full-Flow Thermal Bypass Valve Kit is built to last a lifetime with a durable black anodized finish and our Mishimoto Lifetime Warranty.

This Part Fits:

Year Make Model Submodel
2021 Chevrolet Silverado 2500 HD Custom
2017-2021 Chevrolet Silverado 2500 HD High Country
2017-2021 Chevrolet Silverado 2500 HD LT
2017-2021 Chevrolet Silverado 2500 HD LTZ
2017-2021 Chevrolet Silverado 2500 HD WT
2017-2021 Chevrolet Silverado 3500 HD High Country
2017-2021 Chevrolet Silverado 3500 HD LT
2017-2021 Chevrolet Silverado 3500 HD LTZ
2017-2021 Chevrolet Silverado 3500 HD WT
2020-2021 GMC Sierra 2500 HD AT4
2017-2021 GMC Sierra 2500 HD Base
2017-2021 GMC Sierra 2500 HD Denali
2017-2021 GMC Sierra 2500 HD SLE
2017-2021 GMC Sierra 2500 HD SLT
2020-2021 GMC Sierra 3500 HD AT4
2017-2021 GMC Sierra 3500 HD Base
2017-2021 GMC Sierra 3500 HD Denali
2017-2021 GMC Sierra 3500 HD SLE
2017-2021 GMC Sierra 3500 HD SLT
Read More
Read Less
Mishimoto MMTC-L5P-TBVFF Transmission Coolers
Mishimoto
MMTC-L5P-TBVFF
MISMMTC-L5P-TBVFF
840197710609
2
Transmission Coolers
    customers are viewing this product
Mishimoto MMTC-L5P-TBVFF Transmission Coolers
Is this item in stock?
If it is purchasable it is unstock and available for shipment as soon as today.

How long will it take to get it?
Shipping to US addresses generally takes 2 to 4 business days to arrive depending on your location. We also offer Next Day Air and 2nd Day Air if you need it faster.

International shipping is subject to import duties and taxes and we usually see 4 day to 2 week ship times to most locations outside the USA.

Does this fit my vehicle?
We have fitment charts in most of our vehicle specific products. If you do not see your vehicle, please do not hesitate to ask via chat or contact form.

What is your Return Policy?
Our return policy can be found here: Return Policy

Mishimoto MMTC-L5P-TBVFF - Transmission Coolers
Mishimoto 2017+ GMC 6.6L Duramax L5P Transmission Thermal Bypass Valve Kit
🚚 Free US Ground Shipping on Orders Over $100

2 sold in last 8 hours
$122.34 $114.54

You save 6%

2
$114.54
Mishimoto 2017+ GMC 6.6L Duramax L5P Transmission Thermal Bypass Valve Kit

Have Questions? Need help? Chat is awesome!

1.704.FASTMODz Ask an Expert

  • Guaranteed Fitment

    Always the correct part

  • In-House Experts

    We know our products

  • Low Prices

    Low prices every day!

  • Free Shipping On Orders Over $100

    To the lower 48 US States

Customer Reviews

×

Fastmodz customer bought a

Your cart

×