Fleece Thermostat Housing Upgrade (FPE-FMC-TH-1125) for 2011-2025 Powerstroke 6.7L

$99.21

The Fleece Thermostat Housing Upgrade FPE-FMC-TH-1125 fits 2011–2025 6.7L Powerstroke engines. It replaces the factory plastic housing with a billet aluminum design. This upgrade improves durability and coolant flow efficiency. The anodized finish adds corrosion resistance for long-term use. It provides a reliable cooling system solution for demanding applications.

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Description

Fleece Thermostat Housing Upgrade FPE-FMC-TH-1125

Fleece Thermostat Housing Upgrade for 6.7L Powerstroke Applications

The Fleece Thermostat Housing Upgrade FPE-FMC-TH-1125 fits 2011–2025 Ford Powerstroke 6.7L diesel engines. It replaces the factory plastic thermostat housing with a billet aluminum upgrade designed for long-term durability. This upgrade addresses a factory component that is prone to cracking and leaking over time. Additionally, it provides a direct-fit solution that works with the existing cooling system.

Billet Aluminum Thermostat Housing Construction

This upgrade features a billet aluminium construction that improves strength over the factory plastic unit. Because of this material, it helps resist the cracking and leaking issues associated with the original housing. In addition, the robust design supports consistent cooling system performance in demanding environments. As a result, it provides a more durable replacement for long-term use.

Improved Coolant Flow and Thermal Efficiency

The precision-machined design ensures a proper fit and supports improved coolant flow through the system. As coolant moves more efficiently, the engine can maintain stable operating temperatures. Therefore, this upgrade helps support consistent thermal efficiency under load. Moreover, it contributes to maintaining proper cooling system operation during heavy-duty use.

Precision-Machined Fit and Function

This thermostat housing uses a precision-machined design to ensure correct fitment on 2011–2025 Ford Powerstroke 6.7L engines. Because proper fit matters, this design helps maintain the intended function of the cooling system. In addition, it supports reliable installation without changing the original application. As a result, it works as a direct replacement for the factory unit.

Built for Long-Term Cooling System Reliability

This upgrade supports Powerstroke owners who want dependable cooling system performance. It helps maintain proper operation under heavy-duty conditions while improving durability over the stock plastic housing. As a result, it strengthens a common weak point in the 6.7L Powerstroke cooling system. Furthermore, it provides a long-term solution for owners who want improved reliability.

Learn more about performance upgrades here: https://www.reviewdiesel.com/

Additional information
Weight 3.0 lbs
Fitment

Fitment

  • 2011 Ford Super Duty 250/350/450 6.7L Powerstroke
  • 2012 Ford Super Duty 250/350/450 6.7L Powerstroke
  • 2013 Ford Super Duty 250/350/450 6.7L Powerstroke
  • 2014 Ford Super Duty 250/350/450 6.7L Powerstroke
  • 2015 Ford Super Duty 250/350/450 6.7L Powerstroke
  • 2016 Ford Super Duty 250/350/450 6.7L Powerstroke
  • 2017 Ford Super Duty 250/350/450 6.7L Powerstroke
  • 2018 Ford Super Duty 250/350/450 6.7L Powerstroke
  • 2019 Ford Super Duty 250/350/450 6.7L Powerstroke
  • 2020 Ford Super Duty 250/350/450 6.7L Powerstroke
  • 2021 Ford Super Duty 250/350/450 6.7L Powerstroke
  • 2022 Ford Super Duty 250/350/450 6.7L Powerstroke
  • 2023 Ford Super Duty 250/350/450 6.7L Powerstroke
  • 2024 Ford Super Duty 250/350/450 6.7L Powerstroke
  • 2025 Ford Super Duty 250/350/450 6.7L Powerstroke
  • 2017 Ford Super Duty 350/450/550 6.7L Powerstroke (Cab and Chassis Only)
  • 2018 Ford Super Duty 350/450/550 6.7L Powerstroke (Cab and Chassis Only)
  • 2019 Ford Super Duty 350/450/550 6.7L Powerstroke (Cab and Chassis Only)
  • 2020 Ford Super Duty 350/450/550 6.7L Powerstroke (Cab and Chassis Only)
  • 2021 Ford Super Duty 350/450/550 6.7L Powerstroke (Cab and Chassis Only)
  • 2022 Ford Super Duty 350/450/550 6.7L Powerstroke (Cab and Chassis Only)
  • 2023 Ford Super Duty 350/450/550 6.7L Powerstroke (Cab and Chassis Only)
  • 2024 Ford Super Duty 350/450/550 6.7L Powerstroke (Cab and Chassis Only)
Features

Features

PROBLEM OVERVIEW

COMPLAINT: Coolant leaks around the thermostat housing area, a low coolant level, or the smell of coolant during engine operation or after operation.

CAUSE: A cracked thermostat housing will result in a coolant leak, potentially leading to engine overheating and damage.

Visual Inspection: Carefully inspect the thermostat housing for cracks or damage.

Pressure Test: Perform a coolant system pressure test to ensure the system maintains pressure and observe for leaks at all split lines, including the thermostat housing and coolant crossover manifold.

 SOLUTION: The Fleece Performance thermostat housing upgrade is a drop-in, direct factory replacement for the weak plastic housing that can become brittle overtime!

Replaces Ford Part Number: RH315 (LC3Z8592B) and Dorman Part Number 902-1074

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About brand
Fleece Performance Engineering is a diesel performance manufacturer focused on reliability and precision engineering. The company designs parts that solve common diesel issues while supporting added power. Fleece products support daily driving, towing, and performance diesel trucks. Fleece engineers fuel system components, turbochargers, electronics, and emissions-compliant upgrades in house. Their parts improve efficiency, drivability, and long-term engine protection. Each product is tested for proper fit and consistent performance. Diesel owners trust Fleece for dependable upgrades. Whether maintaining a work truck or building for performance, Fleece delivers proven solutions designed for real-world use.
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