The Mishimoto thermal bypass valve kit replaces the failure-prone factory bypass valve on 2012-2024 Mopar models running the ZF 8HP automatic, Charger, Challenger, Chrysler 300, and Ram 1500 TRX. The stock valve acts as a thermostat, restricting fluid flow to the external transmission cooler until temperature is reached, but the factory units commonly stick closed and overheat the transmission. This CNC-machined billet aluminum replacement adds a heat-sink design for improved dissipation, a serviceable thermostat that opens at the stock 160°F (71°C) and accepts any Mishimoto thermostat, plus an installable bypass insert for constant cooler flow in extreme driving or hot climates. Installs in about an hour and connects directly to all factory cooler piping. Black anodized, backed by the Mishimoto Lifetime Warranty.
Specifications
| Type | Transmission thermal bypass valve kit (thermostatic) |
| Transmission | ZF 8HP automatic |
| Material | CNC-machined billet aluminum, black anodized |
| Thermostat | Opens at 160°F (71°C); serviceable, with installable full-bypass insert |
| Part Number | MMTC-GMP-TBV |
| Warranty | Mishimoto Lifetime Warranty |
This part fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2012-2014 | Chrysler | 300 | Base |
| 2012-2020 | Chrysler | 300 | C |
| 2012-2014 | Chrysler | 300 | C Luxury |
| 2015-2017 | Chrysler | 300 | C Platinum |
| 2012,2015-2020 | Chrysler | 300 | Limited |
| 2012-2021 | Chrysler | 300 | S |
| 2012-2014 | Chrysler | 300 | SRT8 |
| 2013 | Chrysler | 300 | SRT8 Core |
| 2018-2021 | Chrysler | 300 | Touring |
| 2018-2021 | Chrysler | 300 | Touring L |
| 2016 | Dodge | Challenger | 392 Hemi Scat Pack Shaker |
| 2017-2021 | Dodge | Challenger | GT |
| 2012-2021 | Dodge | Challenger | R/T |
| 2017-2019 | Dodge | Challenger | R/T 392 |
| 2012 | Dodge | Challenger | R/T Classic |
| 2015-2016 | Dodge | Challenger | R/T Plus |
| 2016 | Dodge | Challenger | R/T Plus Shaker |
| 2016-2021 | Dodge | Challenger | R/T Scat Pack |
| 2021 | Dodge | Challenger | R/T Scat Pack Shaker Widebody |
| 2019-2021 | Dodge | Challenger | R/T Scat Pack Widebody |
| 2016 | Dodge | Challenger | R/T Shaker |
| 2014 | Dodge | Challenger | Rallye Redline |
| 2015 | Dodge | Challenger | Scat Pack |
| 2015-2018 | Dodge | Challenger | SRT 392 |
| 2018 | Dodge | Challenger | SRT Demon |
| 2015-2021 | Dodge | Challenger | SRT Hellcat |
| 2019-2021 | Dodge | Challenger | SRT Hellcat Redeye |
| 2019-2021 | Dodge | Challenger | SRT Hellcat Redeye Widebody |
| 2018-2021 | Dodge | Challenger | SRT Hellcat Widebody |
| 2020-2021 | Dodge | Challenger | SRT Super Stock |
| 2012-2014 | Dodge | Challenger | SRT8 |
| 2012-2021 | Dodge | Challenger | SXT |
| 2012,2015-2018 | Dodge | Challenger | SXT Plus |
| 2017-2018 | Dodge | Challenger | T/A |
| 2017-2018 | Dodge | Challenger | T/A 392 |
| 2021 | Dodge | Challenger | T/A 392 Widebody |
| 2017-2018 | Dodge | Charger | Daytona |
| 2017-2018 | Dodge | Charger | Daytona 392 |
| 2018-2021 | Dodge | Charger | GT |
| 2018 | Dodge | Charger | GT Plus |
| 2012-2021 | Dodge | Charger | Pursuit |
| 2012-2021 | Dodge | Charger | R/T |
| 2017-2018 | Dodge | Charger | R/T 392 |
| 2015-2016 | Dodge | Charger | R/T Road & Track |
| 2015-2018 | Dodge | Charger | R/T Scat Pack |
| 2019-2021 | Dodge | Charger | Scat Pack |
| 2020 | Dodge | Charger | Scat Pack 392 Widebody |
| 2012-2017 | Dodge | Charger | SE |
| 2015-2018 | Dodge | Charger | SRT 392 |
| 2015-2020 | Dodge | Charger | SRT Hellcat |
| 2021 | Dodge | Charger | SRT Hellcat Redeye Widebody |
| 2020-2021 | Dodge | Charger | SRT Hellcat Widebody |
| 2012-2014 | Dodge | Charger | SRT8 |
| 2012-2021 | Dodge | Charger | SXT |
| 2012,2018 | Dodge | Charger | SXT Plus |
| 2018 | Dodge | Charger | SXT Plus Leather |
| 2021-2024 | Ram | 1500 | TRX |
| 2021 | Ram | 1500 | TRX Launch Edition |
Shipping
- Orders placed before 3 PM EST typically ship the same business day. Larger items ship within 1 to 3 business days.
- Standard, expedited, and overnight options at checkout.
- Oversized items ship by freight and take longer.
- Special order items follow a lead time we confirm with you individually before the order is committed.
- Backordered items ship as soon as stock lands. Lead times are manufacturer estimates and can change. Contact us for current ETAs.
- Need to cancel? Email us right away. Cancellations are not guaranteed once an order is in process. In-stock orders cancel free before they ship; a 6% fee applies only to confirmed backorders and special orders.
- International orders: prices do not include VAT, duties, or import fees. Your country charges these at import and they are the buyer’s responsibility.
Returns
- 30 days from delivery to request and ship back a return on new, uninstalled items in original packaging with all hardware.
- Standard returns: 8% restocking fee on the item price before tax and shipping. Shipping is not refunded in either direction. All waived if the item is defective or we made the error.
- Fitment guaranteed: select your vehicle above, or confirm fitment with us in writing before you order. If the part shows as a fit and it is wrong, the return is on us, even after installation. Otherwise, installed or used parts cannot be returned.
- Final sale: special orders, coilovers, electronics, engine internals, turbochargers, superchargers and turbo kits, unless defective or we sent the wrong item.
- Product images may be representative. The SKU and specifications in the listing are what ships.
- Email us for return authorization before shipping anything back.
Full details: Shipping Policy · Returns & Refunds · Warranty
