Mishimoto MMTS-F2D-03CH High-Temp Thermostat & Housing for 2003-2007 Ford 6.0L

Vehicle Fitment

• 2003-2007 Ford F-250 Super Duty (XL, XLT, Lariat, King Ranch, Harley-Davidson Edition, FX4, 6.0L Powerstroke Diesel, 2WD/4WD)
• 2003-2007 Ford F-350 Super Duty (XL, XLT, Lariat, King Ranch, Harley-Davidson Edition, 6.0L Powerstroke Diesel, 2WD/4WD, SRW/DRW)
• 2003-2007 Ford F-450 Super Duty (XL, XLT, Lariat, 6.0L Powerstroke Diesel)
• 2003-2007 Ford F-550 Super Duty (XL, XLT, Lariat, 6.0L Powerstroke Diesel)
• 2003-2005 Ford Excursion (XLT, XLS, Eddie Bauer, Limited, 6.0L Powerstroke Diesel)
• 2004-2010 Ford E-350 Super Duty (Base, 6.0L Powerstroke Diesel)
• 2004-2005 Ford E-350 Club Wagon (XL, XLT, Chateau, 6.0L Powerstroke Diesel)

Fitment Notes

• Fits the 6.0L Powerstroke (VT365) diesel engine only - does not fit 6.4L, 6.7L, or 7.3L Powerstroke applications.
• Designed as a direct-fit replacement for the stock thermostat housing; no modifications required.
• The cast aluminum housing is a corrosion-resistant upgrade over the original plastic/metal OEM housing.
• Not intended for use with the 6.0L Powerstroke in International/Navistar medium-duty commercial trucks unless thermostat housing design is confirmed to match.
• Ideal for cold-climate operation where faster engine warm-up is preferred; not recommended as a performance/racing thermostat in high-heat applications.

Features

• Higher activation temperature of 200°F (93°C) versus factory activation at 192°F (89°C) - restricts coolant flow longer for a faster, more complete engine warm-up.
• Ideal for cold-climate driving where rapid engine warm-up reduces wear on internal components and improves fuel efficiency.
• Cast aluminum thermostat housing provides a long-lasting, corrosion-resistant seal - will not rust like the factory housing over time.
• Direct-fit design replaces both the OEM thermostat and thermostat housing in a single install.
• Thermostat comes pre-installed inside the cast aluminum housing for convenient, hassle-free installation.
• Addresses two common 6.0L Powerstroke failure points at once: aging thermostat and corroded/failed OEM housing.
• Engineered and tested specifically for the Ford 6.0L Powerstroke application - no universal fitment compromises.
• Backed by Mishimoto's industry-leading Lifetime Warranty on all components included in the kit.

Specifications

• Part Number: MMTS-F2D-03CH
• UPC: 811580034008
• Mishimoto Activation Temperature: 200°F (93°C)
• OEM Activation Temperature: 192°F (89°C)
• Housing Material: Cast Aluminum
• Engine Application: Ford 6.0L Powerstroke Diesel (VT365), Turbocharged V8
• Fitment Type: Direct Replacement
• Installation Position: Engine coolant circuit, thermostat housing location
• Package Dimensions: 6" (L) x 4" (H) x 3" (W)

Included Components

• 1x Mishimoto High-Temperature Thermostat (pre-installed in housing)
• 1x Mishimoto Cast Aluminum Thermostat Housing
• 1x Rubber O-Ring (for thermostat housing seal)

Product Description

The Mishimoto MMTS-F2D-03CH is a high-temperature thermostat and cast aluminum housing kit engineered as a direct-fit replacement for 2003-2007 Ford F-250, F-350, F-450, and F-550 Super Duty trucks, 2003-2005 Ford Excursion, and 2004-2010 Ford E-350 Super Duty vans equipped with the 6.0L Powerstroke diesel engine. Unlike the standard Mishimoto racing thermostat that opens earlier for performance cooling, the MMTS-F2D-03CH uses a higher activation temperature of 200°F - 8 degrees above the OEM 192°F threshold - to restrict coolant flow longer and allow the engine to reach operating temperature faster. This makes it the preferred upgrade for drivers in cold climates where a slow warm-up cycle contributes to increased wear, reduced fuel economy, and poor heater output.

This kit solves two of the most common 6.0L Powerstroke cooling system issues simultaneously. The OEM plastic and metal thermostat housing is notorious for cracking and corroding over time, contributing to coolant leaks and system pressure loss. Mishimoto's cast aluminum replacement housing provides a durable, corrosion-free alternative that maintains a proper seal throughout the life of the vehicle. With the thermostat already pre-installed inside the housing, the kit arrives ready to install with no additional assembly required. The included rubber O-ring ensures a leak-free seal at the housing-to-engine interface.

Installation is a direct bolt-on process with no modifications to the vehicle's existing cooling plumbing or engine components. Whether you're performing preventative maintenance on a high-mileage 6.0L Powerstroke or addressing an existing thermostat or housing failure, the MMTS-F2D-03CH is an affordable and reliable solution trusted by diesel owners and shops alike. All components are covered under Mishimoto's Lifetime Warranty, making this a long-term investment in the reliability and efficiency of your 6.0L Powerstroke cooling system.