Why would I want to bypass the factory transmission cooler bypass valve?

The factory bypass valve can get stuck due to debris, preventing transmission fluid from reaching the cooler. This bypass delete kit ensures fluid always flows through the cooler, helping to keep temperatures down and prevent overheating.

What is included with this kit?

This kit includes the replacement bypass block and all the new seals needed for installation. It's designed to replace the entire factory bypass valve assembly.

Will this kit cause any issues with my transmission in cold weather?

By keeping the fluid flowing through the cooler, this bypass delete helps maintain optimal operating temperatures. While the factory bypass helps warm the fluid faster, this modification prioritizes keeping temperatures low once the transmission is up to operating temp, which is beneficial for preventing heat-related wear.

BD Diesel 17-19 Chevrolet/GM Allison Cooler Bypass Delete

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Specifications

Brand: BD Diesel
Part #: 1061532
UPC: 990011411431

BD Diesel 17-19 Chevrolet/GM Allison Cooler Bypass Delete

Name: BD Diesel 17-19 Chevrolet/GM Allison Cooler Bypass Delete
Brand: BD Diesel
Price: 97.04 USD
Availability: InStock

$97.04

Fits 2017-2019 Chevrolet Silverado 2500 HD. This bypass delete keeps your transmission cooler working constantly to prevent overheating.

Key Features

Fits 2017-2019 Chevrolet Silverado 2500 HD and 3500 HD, and 2017-2019 GMC Sierra 2500 HD and 3500 HD.
Ensures 100 percent fluid flow through the transmission cooler.
Keeps transmission temperatures as low as possible.
Includes a whole replacement block, not just a plug.
Includes all new seals required for installation.
Eliminates the factory bypass valve, a common failure point.

⚠️ CA WARNING: This product can expose you to chemicals known to the State of California to cause cancer and/or birth defects or other reproductive harm. Learn more

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Will this fit your vehicle?

Product Details

Doing a transmission service on your 2017-2019 Chevrolet Silverado 2500 HD or GMC Sierra 2500 HD? If you're concerned about transmission temperatures, especially under load, this cooler bypass delete from BD Diesel is worth a look. The factory bypass valve can get jammed with debris, forcing the transmission fluid to stay in recirculation mode. This means the fluid never actually makes it to the cooler, leading to higher temperatures and potentially damaging your transmission over time.

This kit replaces that factory bypass valve with a solid block, ensuring that 100 percent of your transmission fluid always flows through the cooler. Keeping the fluid flowing through the cooler helps maintain the lowest possible transmission temperatures, which is crucial for the longevity of your Allison transmission. BD Diesel includes all the new seals you'll need for a clean installation, making it a straightforward swap to eliminate a common failure point.