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Heating and Cooling Thermostats, Housings and Fillers

Mishimoto

Mishimoto 16-20 Jeep Grand Cherokee Thermal Bypass Valve Kit FF

$194.00 $99.95 Save $94.05

SKU: M00C MMTC-WK2-TBVFF

In Stock
In Stock
Ships by Aug 1
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Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Description

Part #: MMTC-WK2-TBVFF

The transmission is the backbone of your Grand Cherokee. It's responsible for transmitting large quantities of torque from your V8 or 3.0L EcoDiesel powerplant. That much 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 8HP 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 2016-2020 Jeep Grand Cherokee. The Mishimoto thermal bypass valve kit includes an all-aluminum CNC-machined housing that replaces the stock unit. This full-flow valve allows fluid to pump through the cooler as soon as the vehicle is started, eliminating the potential failure point of the stock bypass and providing cooling benefits. The full-flow design is beneficial to vehicles operating in hot climates, extreme driving conditions, or towing heavy loads. As with Mishimoto products, this Full-Flow Transmission Thermal Bypass Valve Kit includes our signature Lifetime Warranty.

Features:

  • Direct fit for 2016-2020 Jeep Grand Cherokee 3.0L/5.7L/6.4L
  • Installs in less than 1 hour
  • Eliminates failure-prone bypass valve
  • Durable CNC-machined billet aluminum construction
  • Full-flow bypass allows the transmission cooler to operate at maximum efficiency
  • Helps extend transmission life and prevent overheating
  • Fits with stock transmission cooler piping, requiring no modification for installation
  • Integrated heat-sink fins provide unique styling and added heat dissipation
  • Durable anodized finish
  • Mishimoto Lifetime Warranty

Automatic transmission oil cooler designed to regulate fluid temperature and prevent overheating. Enhances transmission longevity, maintains performance, and features durable construction with a precise fit.

MIA's Description

The Mishimoto Thermal Bypass Valve Kit is a direct-fit upgrade for 2016-2020 Jeep Grand Cherokees with 3.0L, 5.7L, or 6.4L engines. This kit replaces the failure-prone stock bypass valve, allowing fluid to flow to the transmission cooler immediately upon startup. Constructed from CNC-machined billet aluminum with an anodized finish, it features integrated heat-sink fins for styling and added heat dissipation.

Fitment

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Specifications

BrandMishimoto
Part NumberM00C MMTC-WK2-TBVFF

Buy with Confidence

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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