Thermostat Plug

Replacement M22 thermostat plug for use on Cummins cylinder heads. Includes O-ring. Replaces Cummins part number 3089238.

Part Type

Engine Coolant Thermostat Housing Plug

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Reference Information

Fitting, Cylinder Head Thermostat Plug, Dodge, Ram, Diesel, Each

Fleece Performance rear engine cover coolant return plugs add a finishing touch under the hood of your truck, such as when you're installing an aftermarket turbo. Machined from 6061 aluminum, the plugs feature an anodized black finish and are laser-etched with the Fleece "F." A high-temperature silicone O-ring is included to prevent leaks. Order the plug recommended for fitment on your vehicle.