Mishimoto Low-Temperature Thermostat Ford 6.7L Powerstroke 11+ | 189°F Activation | Cooling System Upgrade

Overview

The Mishimoto Low-Temperature Thermostat for the Ford 6.7L Powerstroke (2011 and newer) is a direct-fit replacement designed to improve your engine’s cooling efficiency and reliability. By activating at a lower temperature than the factory thermostat, it allows coolant to circulate through the engine earlier, reducing overall operating temperatures. This upgrade is ideal for owners who frequently tow heavy loads, drive in warmer climates, or demand enhanced thermal management from their diesel engine.

Engineered with precision and durability in mind, this thermostat reflects Mishimoto’s commitment to quality and performance. The design focuses on maintaining optimal engine temperatures to prevent overheating and reduce thermal stress on internal components. Mishimoto’s rigorous quality control and lifetime warranty ensure that this thermostat meets the demands of serious Powerstroke enthusiasts and professionals alike.

Lowering the thermostat activation temperature from the factory’s 194°F/201°F to 189°F/196°F helps maintain a cooler engine environment, which can extend engine life and improve performance under strenuous conditions. When paired with complementary cooling upgrades such as the Mishimoto Aluminum Primary Performance Radiator, this thermostat forms a critical part of a comprehensive cooling system overhaul tailored for the 6.7L Powerstroke platform.

Features & Specifications

This Mishimoto Low-Temperature Thermostat is engineered specifically for the Ford 6.7L Powerstroke (2011+) and features a lower activation temperature of 189°F/196°F. Constructed from high-quality materials, it delivers improved thermal regulation and reliability for diesel truck owners seeking enhanced cooling performance.

• Brand: Mishimoto
• Product: Low-Temperature Thermostat Ford 6.7L Powerstroke 11+
• Part Number: MMTS-F2D-11L
• Fitment: Ford 6.7L Powerstroke (2011+)
• Material: High-grade metal alloy
• Finish: Corrosion-resistant coating
• Construction: Precision-engineered, direct-fit replacement
• Origin: Manufactured to Mishimoto standards (origin not specified)
• Activation Temperature: 189°F (opening), 196°F (fully open)

Key Benefits

• Cooling Efficiency: Activates coolant flow earlier to reduce engine temperatures under load
• Engine Protection: Helps prevent overheating and potential internal damage during heavy towing or extreme conditions
• Direct Fitment: Designed as a straightforward replacement for factory thermostats, ensuring hassle-free installation
• Durability: Built with corrosion-resistant materials for long-lasting reliability in demanding environments
• Compatibility: Ideal for Ford 6.7L Powerstroke owners seeking improved thermal management without extensive modifications
• Warranty: Backed by Mishimoto’s Lifetime Warranty for peace of mind

What's Included

• 1× Mishimoto Low-Temperature Thermostat for Ford 6.7L Powerstroke 11+
• Installation instructions

Installation & Compatibility

Installation of the Mishimoto Low-Temperature Thermostat is straightforward for those with basic mechanical skills and common hand tools. It is a direct-fit replacement for the factory thermostat, requiring no modifications or special tools. However, professional installation is recommended if you are unfamiliar with cooling system components or want to ensure proper coolant system bleeding and sealing. This thermostat is compatible with all 2011 and newer Ford 6.7L Powerstroke diesel engines. For optimal cooling system performance, pairing this thermostat with other Mishimoto cooling upgrades is advised.

• Professional Installation: Recommended for best results
• Modifications Required: None
• Verify Compatibility: Confirm fitment for your specific model year and engine variant

Shop with confidence at Subimods—your Subaru parts specialists.