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  See more parts for Subaru Ascent
Select the year of your Subaru Ascent:
Mishimoto Racing Thermostat Subaru Ascent | Forester | Legacy | Outback | WRX 2014-2022 - MMTS-WRX-15
The Mishimoto racing thermostat for the 2015+ Subaru WRX will promote greater cooling efficiency in your stock or modified FA20DIT. Once the engine is fully warmed up, the Mishimoto racing thermostat will open at a lower temperature than standard thermostats. This allows coolant to flow through the engine'sooner, which reduces and maintains cooler engine temperatures. The Mishimoto WRX racing thermostat is the perfect addition to your street or track WRX and is a direct replacement for the stock thermostat. As with all our products, this thermostat includes the Mishimoto Lifetime Warranty.

Purchase Includes:
  • (1) Mishimoto Thermostat
  • Mishimoto Lifetime Warranty


Features:
  • Direct fit for the 2015+ Subaru WRX
  • Lower activation temperature allows coolant to flow through the engine earlier, maintaining lower temperatures (Mishimoto thermostat activates at 165.2 F vs. stock 190.4 Degree F)
  • Mishimoto Lifetime Warranty


Specifications:
  • Mishimoto Activation Temperature Degree F: 165.2
  • OEM Activation Temperature Degree F: 190.4
  • Vehicle Specifications:
    • Chassis Codes: VA/SJ/VB
    • Engine Codes: FA20DIT/FA24DIT


Fitment:
  • Subaru Ascent Base 2019-2022
  • Subaru Ascent Convenience 2019-2022
  • Subaru Ascent Limited 2019-2022
  • Subaru Ascent Onyx Edition 2022
  • Subaru Ascent Premier 2019-2022
  • Subaru Ascent Premium 2019-2022
  • Subaru Ascent Touring 2019-2022
  • Subaru Forester 2.0XT Limited 2014-2018
  • Subaru Forester 2.0XT Premium 2014-2018
  • Subaru Forester 2.0XT Touring 2014-2018
  • Subaru Forester XT 2014-2018
  • Subaru Legacy Limited GT 2020-2022
  • Subaru Legacy Limited XT 2020-2022
  • Subaru Legacy Premier GT 2020-2022
  • Subaru Legacy Touring XT 2020-2022
  • Subaru Outback Limited XT 2020-2022
  • Subaru Outback Onyx Edition XT 2020-2022
  • Subaru Outback Outdoor XT 2020-2021
  • Subaru Outback Premier XT 2020-2022
  • Subaru Outback Touring XT 2020-2022
  • Subaru Outback Wilderness 2022
  • Subaru WRX 6 Man 2018-2021
  • Subaru WRX Base 2015-2022
  • Subaru WRX CVT 2018-2021
  • Subaru WRX EyeSight 2021
  • Subaru WRX GT 2022
  • Subaru WRX Limited 2015-2022
  • Subaru WRX Premium 2015-2022
  • Subaru WRX Raui Edition 2019
  • Subaru WRX Sport 2017-2022
  • Subaru WRX Sport-tech 2017-2022
  • Subaru WRX Sport-tech RS 2019-2020

Other Part Numbers:
Mishimoto #misMMTS-WRX-15

Proposition 65

⚠ WARNING: Cancer and Reproductive Harm
https://www.P65Warnings.ca.gov

Vehicle Make/Model
Subaru Ascent 2019-2025 Touring
Subaru Ascent 2019-2025 Premier
Subaru Ascent 2019-2025 Convenience
Subaru Ascent 2019-2025 Limited
Subaru Ascent 2019-2025 Premium
Subaru Ascent 2019-2024 Base
Subaru Ascent 2022-2025 Onyx Edition
Subaru Ascent 2023-2024 Onyx Edition Limited
Subaru Ascent 2025 Bronze Edition
Subaru Ascent 2025 Onyx Edition Touring
Subaru Crosstrek 2024-2025 Limited
Subaru Crosstrek 2024-2026 Convenience
Subaru Crosstrek 2024-2026 Touring
Subaru Crosstrek 2024 Premium Plus
Subaru Crosstrek 2024-2025 Base
Subaru Crosstrek 2024 Premium
Subaru Crosstrek 2024-2025 Limited e-boxer
Subaru Crosstrek 2025 Dynamic
Subaru Forester 2014-2018 2.5i Premium
Subaru Forester 2014-2017 X
Subaru Forester 2014-2018 XT
Subaru Forester 2014, 2016-2018 2.0XT Limited
Subaru Forester 2014-2018 2.0XT Touring
Subaru Forester 2014-2018 2.5i Convenience
Subaru Forester 2014-2018 2.0XT Premium
Subaru Forester 2014-2017 XSL
Subaru Forester 2014-2018 2.5i Limited
Subaru Forester 2014-2017 XS
Subaru Forester 2014-2018 2.5i
Subaru Forester 2014-2018 2.5i Touring
Subaru Forester 2018, 2025-2026 Premium
Subaru Forester 2018, 2025-2026 Limited
Subaru Forester 2018, 2025-2026 Touring
Subaru Forester 2025-2026 Convenience
Subaru Forester 2025-2026 Sport
Subaru Forester 2025 Premium Plus
Subaru Forester 2025-2026 Premier
Subaru Forester 2025 Black Edition
Subaru Forester 2025-2026 Base
Subaru Forester 2025 Wilderness
Subaru Impreza 2024-2026 Touring
Subaru Impreza 2024-2026 Convenience
Subaru Impreza 2024-2025 Base
Subaru Impreza 2024-2026 Sport
Subaru Legacy 2020-2025 Touring XT
Subaru Legacy 2020-2022 Limited XT
Subaru Legacy 2020-2022 Convenience
Subaru Legacy 2020-2022 Limited GT
Subaru Legacy 2020-2022 Premier GT
Subaru Legacy 2020-2025 Sport
Subaru Legacy 2020-2022 Base
Subaru Legacy 2020-2021 Premier
Subaru Legacy 2020-2022 Limited
Subaru Legacy 2020-2022 Premium
Subaru Legacy 2020-2022 Touring
Subaru Legacy 2023-2024 GT
Subaru Outback 2020-2022 Convenience
Subaru Outback 2020-2022 Limited
Subaru Outback 2020-2025 Premier XT
Subaru Outback 2020-2025 Limited XT
Subaru Outback 2020-2025 Touring XT
Subaru Outback 2020-2023 Touring
Subaru Outback 2020-2022 Base
Subaru Outback 2020-2021 Outdoor XT
Subaru Outback 2020-2025 Onyx Edition XT
Subaru Outback 2020-2022 Premier
Subaru Outback 2020-2022 Premium
Subaru Outback 2022-2025 Wilderness
Subaru Outback 2023 Field
Subaru Outback 2024 Geyser Blue Edition
Subaru WRX 2015-2025 Premium
Subaru WRX 2015-2024 Base
Subaru WRX 2015-2025 Limited
Subaru WRX 2015-2016 STI
Subaru WRX 2017-2025 Sport
Subaru WRX 2017-2025 Sport-tech
Subaru WRX 2018-2021 6 Man
Subaru WRX 2018-2021 CVT
Subaru WRX 2019 Raui Edition
Subaru WRX 2019-2020 Sport-tech RS
Subaru WRX 2021 EyeSight
Subaru WRX 2022-2025 GT
Subaru WRX 2024 RS
Subaru WRX 2024 TR
Subaru WRX 2025 Sportwagon
Subaru WRX 2025 High
Subaru WRX 2025 TS

Mishimoto Banner

Who is Mishimoto?

Mishimoto is an aftermarket automotive company that was established in 2005. They are known for creating the industry’s best performing cooling system components. Today, they have become the market leader and has been chosen by various enthusiasts worldwide.

Parts for All Your Cooling Needs

Mishimoto offers a wide range of products such as couplings, radiators, fans, and other cooling system components for practically every vehicle, may it be a sport compact, truck, jeep, muscle cars, and classic vehicles. They also offer intake systems and intercoolers that help the vehicle gain more horsepower.

Built to Perform Better

The company creates products that are better than the stock components. Their parts are designed to work in higher pressure ratings and are more robust. Hence, they are the brand of choice by tuners and enthusiasts who demand a cooling system that can work for high-performance applications. Many racers choose Mishimoto as it has proven itself to produce race winners whatever racing discipline it is, may it be circuit racing, drag racing, drifting, and off road racing.

Purchase Mishimoto Products at Vivid Racing

Your vehicle cooling system plays a critical role in your vehicle. It keeps the temperature at bay and prevents severe damages caused by overheating. If you want a product that can put your trust in, then Mishimoto is the brand for you. Tested by many racers on the track and a variety of car enthusiasts on the street, you can be sure that you will never go wrong with Mishimoto.

Visit Vivid Racing and check out their list of products that would fit your specific needs.











Mishimoto Automotive ("Mishimoto") warrants its products under this lifetime limited warranty policy ("Warranty Policy"). This Warranty Policy applies solely to: (i) Mishimoto Products purchased directly from Mishimoto or Mishimoto authorized dealers (each a "Mishimoto Product" and collectively, the "Mishimoto Products") and (ii) the original purchaser of such Mishimoto Product ("Purchaser"). This Warranty Policy is non-transferable and all claims under this Warranty Policy must be accompanied by the original sales receipt. The terms and conditions of this Warranty Policy are subject to change by Mishimoto at any time without notice.

Pursuant to the terms and conditions of this Warranty Policy, after submission of a valid claim by a Purchaser and regardless of the condition of the product for which such valid claim is submitted, if it is determined by Mishimoto that such Mishimoto Product was not manufactured to Mishimoto's advertised specifications or if such claim was submitted pursuant to Mishimoto's Accident Protection Plan, as described herein, Mishimoto will, at its discretion: (i) repair or replace Purchaser's original Mishimoto Product; (ii) replace Purchaser's original Mishimoto Product with the most current available model (if, for example, the original model of the product for which a valid claim has been submitted is not available); or (iii) provide the purchaser with a gift card redeemable at Mishimoto.com in the amount of the original purchase price of the original Mishimoto Product (if, for example, Mishimoto has discontinued support for a Purchaser's specific application).

To submit a claim for a Mishimoto Product under this Warranty Policy, you must: (i) fully and accurately fill out the online form provided below; and (ii) provide Mishimoto with a copy of an original sales receipt indicating that you are the original Purchaser of the Mishimoto Product for which the claim is being submitted (you must also provide the information described in the paragraph of this Warranty Policy titled "Mishimoto Accident Protection Plan" if you are submitting a claim for a Mishimoto Product damaged in an accident). In addition, if requested by Mishimoto, you must also send the Mishimoto Product for which a claim is being made, all transportation expenses prepaid, to Mishimoto.

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