Mishimoto - misMMTS-F2D-11L - Ford 6.7L Powerstroke Low-Temperature Primary Cooling System Thermostat

A defective thermostat can result in engine overheating and potential internal damage. Improve the reliability of your 6.7L primary cooling system with the Mishimoto Ford 6.7L Powerstroke Low-Temperature Thermostat! This thermostat is designed as a direct-fit replacement for your aged factory unit. The Mishimoto thermostat has lower activation temperatures (189 F/196 F) compared to the factory thermostat (194 F/201 F). The lower activation temperatures allow coolant to flow through the engine earlier, which reduces and maintains lower engine temperatures. This thermostat is ideal for use in warmer climates or under extreme towing/driving conditions. Pair this thermostat set with the Mishimoto 6.7L Powerstroke Aluminum Primary Performance Radiator for a complete cooling system overhaul. As with all our products, this thermostat include the Mishimoto Lifetime Warranty, ensuring superior product quality and craftsmanship. Engine coolant thermostat designed to regulate coolant flow and maintain optimal operating temperature. Ensures efficient warm-up, prevents overheating, and supports reliable performance with a precise fit. 2011-2013 Ford F-250 Super Duty King Ranch 6.7 Liter 6R140, 2011-2013 Ford F-250 Super Duty Lariat 6.7 Liter 6R140, 2013 Ford F-250 Super Duty Platinum 6.7 Liter 6R140, 2011-2013 Ford F-250 Super Duty XL 6.7 Liter 6R140, 2011-2013 Ford F-250 Super Duty XLT 6.7 Liter 6R140, 2011-2013 Ford F-350 Super Duty King Ranch 6.7 Liter 6R140, 2011-2013 Ford F-350 Super Duty Lariat 6.7 Liter 6R140, 2013 Ford F-350 Super Duty Platinum 6.7 Liter 6R140, 2011-2013 Ford F-350 Super Duty XL 6.7 Liter 6R140, 2011-2013 Ford F-350 Super Duty XLT 6.7 Liter 6R140, 2011-2012 Ford F-450 Super Duty King Ranch 6.7 Liter 5R110W, 2011-2013 Ford F-450 Super Duty King Ranch 6.7 Liter 6R140, 2011-2013 Ford F-450 Super Duty Lariat 6.7 Liter 5R110W, 2011-2013 Ford F-450 Super Duty Lariat 6.7 Liter 6R140, 2013 Ford F-450 Super Duty Platinum 6.7 Liter 6R140, 2011-2013 Ford F-450 Super Duty XL 6.7 Liter 5R110W, 2011-2013 Ford F-450 Super Duty XL 6.7 Liter 6R140, 2011-2013 Ford F-450 Super Duty XLT 6.7 Liter 5R110W, 2011-2013 Ford F-450 Super Duty XLT 6.7 Liter 6R140, 2011-2013 Ford F-550 Super Duty Lariat 6.7 Liter 5R110W, 2011-2013 Ford F-550 Super Duty Lariat 6.7 Liter 6R140, 2011-2013 Ford F-550 Super Duty XL 6.7 Liter 5R110W, 2011-2013 Ford F-550 Super Duty XL 6.7 Liter 6R140, 2011-2013 Ford F-550 Super Duty XLT 6.7 Liter 5R110W, 2011-2013 Ford F-550 Super Duty XLT 6.7 Liter 6R140

• Lower activation temperature allows coolant to flow through the engine earlier, maintaining lower temperatures
• Ideal for vehicles in warm climates or under extreme towing/driving conditions
• Mishimoto Lifetime Warranty

The Mishimoto Ford 6.7L Powerstroke Low-Temperature Primary Cooling System Thermostat is designed to regulate coolant flow and maintain engine operating temperature. It provides a direct-fit replacement for an aged factory thermostat and allows coolant to flow through the engine earlier than the factory thermostat, helping maintain lower engine temperatures.

With lower activation temperatures of 189°F and 196°F compared with the factory thermostat’s 194°F and 201°F, this thermostat is suited for vehicles operating in warm climates or under extreme towing and driving conditions. It supports efficient warm-up, helps prevent overheating, and promotes reliable cooling-system performance. The thermostat is covered by the Mishimoto Lifetime Warranty.

Key Features & Performance Benefits

• Lower Activation Temperatures: Opens at 189°F and 196°F to allow earlier coolant flow.
• Temperature Management: Helps maintain lower engine temperatures in demanding conditions.
• Direct-Fit Replacement: Designed to replace the factory thermostat.
• Warranty Coverage: Includes the Mishimoto Lifetime Warranty.

Key Product Specifications & Technical Data

• Brand: Mishimoto
• Part Number: misMMTS-F2D-11L
• Application: Ford 6.7L Powerstroke primary cooling system
• Product Type: Low-temperature engine coolant thermostat
• Activation Temperatures: 189°F and 196°F
• Factory Thermostat Comparison: 194°F and 201°F
• Fitment Period: 2011–2013 model years, where listed
• Warranty: Mishimoto Lifetime Warranty

What's Included in the Box

One Mishimoto low-temperature primary cooling system thermostat.

Fitment

Fits select 2011–2013 Ford F-250, F-350, F-450, and F-550 Super Duty models with the 6.7L engine. Listed configurations include King Ranch, Lariat, Platinum, XL, and XLT trims, with 5R110W and 6R140 transmissions where specified.

Fitments:
2011 Ford F-250 Super Duty King Ranch
2011 Ford F-250 Super Duty Lariat
2011 Ford F-250 Super Duty XL
2011 Ford F-250 Super Duty XLT
2011 Ford F-350 Super Duty King Ranch
2011 Ford F-350 Super Duty Lariat
2011 Ford F-350 Super Duty XL
2011 Ford F-350 Super Duty XLT
2012 Ford F-250 Super Duty King Ranch
2012 Ford F-250 Super Duty Lariat
2012 Ford F-250 Super Duty XL
2012 Ford F-250 Super Duty XLT
2012 Ford F-350 Super Duty King Ranch
2012 Ford F-350 Super Duty Lariat
2012 Ford F-350 Super Duty XL
2012 Ford F-350 Super Duty XLT
2013 Ford F-250 Super Duty King Ranch
2013 Ford F-250 Super Duty Lariat
2013 Ford F-250 Super Duty Platinum
2013 Ford F-250 Super Duty XL
2013 Ford F-250 Super Duty XLT
2013 Ford F-350 Super Duty King Ranch
2013 Ford F-350 Super Duty Lariat
2013 Ford F-350 Super Duty Platinum
2013 Ford F-350 Super Duty XL
2013 Ford F-350 Super Duty XLT
2014 Ford F-250 Super Duty King Ranch
2014 Ford F-250 Super Duty Lariat
2014 Ford F-250 Super Duty Platinum
2014 Ford F-250 Super Duty XL
2014 Ford F-250 Super Duty XLT
2014 Ford F-350 Super Duty King Ranch
2014 Ford F-350 Super Duty Lariat
2014 Ford F-350 Super Duty Platinum
2014 Ford F-350 Super Duty XL
2014 Ford F-350 Super Duty XLT
2015 Ford F-250 Super Duty King Ranch
2015 Ford F-250 Super Duty Lariat
2015 Ford F-250 Super Duty Platinum
2015 Ford F-250 Super Duty XL
2015 Ford F-250 Super Duty XLT
2015 Ford F-350 Super Duty King Ranch
2015 Ford F-350 Super Duty Lariat
2015 Ford F-350 Super Duty Platinum
2015 Ford F-350 Super Duty XL
2015 Ford F-350 Super Duty XLT
2016 Ford F-250 Super Duty King Ranch
2016 Ford F-250 Super Duty Lariat
2016 Ford F-250 Super Duty Platinum
2016 Ford F-250 Super Duty XL
2016 Ford F-250 Super Duty XLT
2016 Ford F-350 Super Duty King Ranch
2016 Ford F-350 Super Duty Lariat
2016 Ford F-350 Super Duty Platinum
2016 Ford F-350 Super Duty XL
2016 Ford F-350 Super Duty XLT
2017 Ford F-250 Super Duty King Ranch
2017 Ford F-250 Super Duty Lariat
2017 Ford F-250 Super Duty Platinum
2017 Ford F-250 Super Duty XL
2017 Ford F-250 Super Duty XLT
2017 Ford F-350 Super Duty King Ranch
2017 Ford F-350 Super Duty Lariat
2017 Ford F-350 Super Duty Platinum
2017 Ford F-350 Super Duty XL
2017 Ford F-350 Super Duty XLT
2018 Ford F-250 Super Duty King Ranch
2018 Ford F-250 Super Duty Lariat
2018 Ford F-250 Super Duty Limited
2018 Ford F-250 Super Duty Platinum
2018 Ford F-250 Super Duty XL
2018 Ford F-250 Super Duty XLT
2018 Ford F-350 Super Duty King Ranch
2018 Ford F-350 Super Duty Lariat
2018 Ford F-350 Super Duty Limited
2018 Ford F-350 Super Duty Platinum
2018 Ford F-350 Super Duty XL
2018 Ford F-350 Super Duty XLT
2019 Ford F-250 Super Duty King Ranch
2019 Ford F-250 Super Duty Lariat
2019 Ford F-250 Super Duty Limited
2019 Ford F-250 Super Duty Platinum
2019 Ford F-250 Super Duty XL
2019 Ford F-250 Super Duty XLT
2019 Ford F-350 Super Duty King Ranch
2019 Ford F-350 Super Duty Lariat
2019 Ford F-350 Super Duty Limited
2019 Ford F-350 Super Duty Platinum
2019 Ford F-350 Super Duty XL
2019 Ford F-350 Super Duty XLT
2020 Ford F-250 Super Duty King Ranch
2020 Ford F-250 Super Duty Lariat
2020 Ford F-250 Super Duty Limited
2020 Ford F-250 Super Duty Platinum
2020 Ford F-250 Super Duty XL
2020 Ford F-250 Super Duty XLT
2020 Ford F-350 Super Duty King Ranch
2020 Ford F-350 Super Duty Lariat
2020 Ford F-350 Super Duty Limited
2020 Ford F-350 Super Duty Platinum
2020 Ford F-350 Super Duty XL
2020 Ford F-350 Super Duty XLT
2021 Ford F-250 Super Duty King Ranch
2021 Ford F-250 Super Duty Lariat
2021 Ford F-250 Super Duty Limited
2021 Ford F-250 Super Duty Platinum
2021 Ford F-250 Super Duty XL
2021 Ford F-250 Super Duty XLT
2021 Ford F-350 Super Duty King Ranch
2021 Ford F-350 Super Duty Lariat
2021 Ford F-350 Super Duty Limited
2021 Ford F-350 Super Duty Platinum
2021 Ford F-350 Super Duty XL
2021 Ford F-350 Super Duty XLT
2022 Ford F-250 Super Duty King Ranch
2022 Ford F-250 Super Duty Lariat
2022 Ford F-250 Super Duty Limited
2022 Ford F-250 Super Duty Platinum
2022 Ford F-250 Super Duty XL
2022 Ford F-250 Super Duty XLT
2022 Ford F-350 Super Duty King Ranch
2022 Ford F-350 Super Duty Lariat
2022 Ford F-350 Super Duty Limited
2022 Ford F-350 Super Duty Platinum
2022 Ford F-350 Super Duty XL
2022 Ford F-350 Super Duty XLT
2023 Ford F-250 Super Duty King Ranch
2023 Ford F-250 Super Duty Lariat
2023 Ford F-250 Super Duty Limited
2023 Ford F-250 Super Duty Platinum
2023 Ford F-250 Super Duty XL
2023 Ford F-250 Super Duty XLT
2023 Ford F-350 Super Duty King Ranch
2023 Ford F-350 Super Duty Lariat
2023 Ford F-350 Super Duty Limited
2023 Ford F-350 Super Duty Platinum
2023 Ford F-350 Super Duty XL
2023 Ford F-350 Super Duty XLT
2024 Ford F-250 Super Duty King Ranch
2024 Ford F-250 Super Duty Lariat
2024 Ford F-250 Super Duty Limited
2024 Ford F-250 Super Duty Platinum
2024 Ford F-250 Super Duty XL
2024 Ford F-250 Super Duty XLT
2024 Ford F-350 Super Duty King Ranch
2024 Ford F-350 Super Duty Lariat
2024 Ford F-350 Super Duty Limited
2024 Ford F-350 Super Duty Platinum
2024 Ford F-350 Super Duty XL
2024 Ford F-350 Super Duty XLT
2025 Ford F-250 Super Duty King Ranch
2025 Ford F-250 Super Duty Lariat
2025 Ford F-250 Super Duty Platinum
2025 Ford F-250 Super Duty XL
2025 Ford F-250 Super Duty XLT
2025 Ford F-350 Super Duty King Ranch
2025 Ford F-350 Super Duty Lariat
2025 Ford F-350 Super Duty Platinum
2025 Ford F-350 Super Duty XL
2025 Ford F-350 Super Duty XLT
2026 Ford F-250 Super Duty King Ranch
2026 Ford F-250 Super Duty Lariat
2026 Ford F-250 Super Duty Platinum
2026 Ford F-250 Super Duty XL
2026 Ford F-250 Super Duty XLT
2026 Ford F-350 Super Duty King Ranch
2026 Ford F-350 Super Duty Lariat
2026 Ford F-350 Super Duty Platinum
2026 Ford F-350 Super Duty XL
2026 Ford F-350 Super Duty XLT

Air Freight Prohibited: false
Not Carb Approved: false
Ltl Freight Required: false
Prop 65: Y
Part Type: automotive
Epa: N/A
Carb Acknowledgement Required: false
Regular Stock: t
Units Per Sku: 1