Dorman 902-1120 Engine Coolant Thermostat Housing

Engine Coolant Thermostat Housing for Ford Cooling Systems

Dorman 902-1120 is a replacement engine coolant thermostat housing built for specified Ford applications. It matches the stock housing’s fit and durability requirements while using a metal construction designed to handle repeated temperature swings in the cooling system.

Compatible with select Ford F-150, F-350, F-250 Super Duty, F-350 Super Duty, and E-350 Super Duty applications, this thermostat housing includes the gasket needed for installation and is shaped to align with the original cooling system layout.

Key Features

• Metal thermostat housing with a black finish
• Engine coolant thermostat housing for the cooling system
• Gasket or seal included for a proper service replacement
• Two mounting holes with OE-style dimensions
• Inlet port diameter: 1.27 in.; outlet port diameter: 1.68 in.
• Housing neck angle: 20 degrees
• Designed to match stock fit and durability on specified vehicles
• Part number: 902-1120

Detailed Description

This Dorman thermostat housing is engineered as a direct replacement for the original engine coolant thermostat housing used on select Ford trucks and vans. The metal body, flange dimensions, and port sizing are built to align with the factory cooling system layout, helping maintain a secure connection at the thermostat location. The included gasket supports a clean reseal during service, and the housing is made to withstand extreme temperature changes that can affect cooling-system components over time. Part number 902-1120 is also cross-referenced to Four Seasons 86011 for the same application.

Fits 2010-2014 Ford F-150, N/A. Fits 2011-2016 Ford F-350, N/A. Fits 2011-2021 Ford F-250 Super Duty, N/A. Fits 2011-2021 Ford F-350 Super Duty, N/A. Fits 2017-2019 Ford E-350 Super Duty, N/A. Fits 2022 Ford F-250 Super Duty, N/A. Fits 2022 Ford F-350 Super Duty, N/A.

What It Helps Fix

• Coolant leaks at the thermostat housing
• Cracked or warped factory housing surfaces
• Improper sealing at the thermostat housing gasket area
• Cooling-system service issues caused by worn housing material
• Fitment problems from a damaged or mismatched replacement housing

Installation Notes and Tips

Verify the inlet and outlet port sizes, mounting hole spacing, and housing neck angle before installation. Replace the gasket during service and inspect the mating surfaces for corrosion, pitting, or old seal material. Confirm vehicle application by year, make, and model before ordering, especially on Ford F-150, Ford F-350, Ford F-250 Super Duty, Ford F-350 Super Duty, and Ford E-350 Super Duty cooling system repairs.

Quality Assurance

Dorman designs replacement cooling-system components to match the fit and service requirements of the original part on specified vehicles. This housing is built for application-specific replacement use and is backed by Dorman’s product engineering standards.