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Ships within 48 hours · Estimated delivery Aug 14 - Aug 19
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Description
Mishimoto 16-20 Jeep Grand Cherokee Thermal Bypass Valve Kit FFThe 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
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.This Part Fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2018-2020 | Dodge | Durango | Citadel |
| 2018 | Dodge | Durango | GT |
| 2019-2020 | Dodge | Durango | Pursuit |
| 2018-2020 | Dodge | Durango | R/T |
| 2018-2020 | Dodge | Durango | Special Service |
| 2018-2021 | Dodge | Durango | SRT |
| 2022-2024 | Dodge | Durango | SRT 392 |
| 2023-2024 | Dodge | Durango | SRT 392 Plus |
| 2023-2024 | Dodge | Durango | SRT 392 Premium |
| 2018 | Dodge | Durango | SXT |
| 2016 | Jeep | Grand Cherokee | 75th Anniversary |
| 2021 | Jeep | Grand Cherokee | 80th Anniversary |
| 2018-2020 | Jeep | Grand Cherokee | Altitude |
| 2018-2021 | Jeep | Grand Cherokee | High Altitude |
| 2016-2020 | Jeep | Grand Cherokee | Laredo |
| 2021 | Jeep | Grand Cherokee | Laredo E |
| 2021 | Jeep | Grand Cherokee | Laredo X |
| 2016-2020 | Jeep | Grand Cherokee | Limited |
| 2019-2021 | Jeep | Grand Cherokee | Limited X |
| 2016-2020 | Jeep | Grand Cherokee | Overland |
| 2016-2020 | Jeep | Grand Cherokee | SRT |
| 2016-2020 | Jeep | Grand Cherokee | Summit |
| 2018-2021 | Jeep | Grand Cherokee | Trackhawk |
| 2017-2020 | Jeep | Grand Cherokee | Trailhawk |
| 2019-2020 | Jeep | Grand Cherokee | Upland |
| 2021 | Jeep | Grand Cherokee L | Altitude |
| 2021 | Jeep | Grand Cherokee L | Laredo |
| 2021 | Jeep | Grand Cherokee L | Limited |
| 2021 | Jeep | Grand Cherokee L | Overland |
| 2021 | Jeep | Grand Cherokee L | Summit |
| 2021 | Jeep | Grand Cherokee L | Summit Reserve |
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- 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
4.8 ★★★★★
Based on 29 reviews
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Product Reviews
★★★★★ 5
Great socks!
Size: Medium, Color: (252) Blush Beige / White / Castlerock
Love these socks so much I got a second package. I like how thin and airy they are and they never slide down my heel. For thin socks they’re pretty durable.
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Reviewed in the United States on August 16, 2025
★★★★★ 5
Great
Size: Medium, Color: (001) Black / Black / Pitch Gray
The best pair of work / workout / casual socks I've bought in long time! They're no show on all my sneakers, incredibly comfortable and they never move.
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Reviewed in the United States on October 7, 2025
★★★★★ 5
Great no show socks
Size: Small, Color: (725) Oxford Brown / Oxford Brown / Black
Very comfortable and perfect fit for my small feet. I love the full coverage sock feel with a totally no show sock.
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Reviewed in the United States on May 29, 2026
★★★★★ 5
Great no shows for people with larger feet
Size: Large, Color: (001) Black / Black / Castlerock
Some of my favorite socks!! Great quality, fit, and material. I love that they don't slip down in my shoes, especially considering I have larger feet. I also love that Under Armour offers larger sizes in their socks considering everyone in our household has much larger feet than others.
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Reviewed in the United States on May 3, 2026
★★★★★ 5
Best liner socks EVER
Size: Medium, Color: (348) Silica Green / Silica Green / Hydro Green
I have them in every color and used to get them from Sams, but they stopped selling them and I was lucky to find them on Amazon. Got all colors again. They stay, it's all I'm gonna say! And don't show in any of my tennis shoes. Absolutely love them and wear them until they get holes. They last a LONG time too. They're on the thin side and my foot loves them because they tend to get hot. There's no shrinking, they wash great with exception of the white ones I couldn't manage to keep white - they turned a bit greyish.
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Reviewed in the United States on January 4, 2026