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Product Information

This listing covers the exact Mishimoto radiator caps configuration identified as Ford F-250 Mishimoto 1.1 Bar Rated /F-350/F-450/F-550 Super Duty Overflow Reservoir Cap.

Catalog fitment covers the listed 1991-2021 vehicle applications. Exact year and submodel combinations appear in the fitment table below; compatibility must not be inferred for every trim across the full range.

Getting the most out of your performance parts comes down to the details. When faced with hard driving conditions, a vehicle's cooling system becomes highly pressurized. Factory caps are not equipped to handle long term use and often lose pressure, in turn reducing the potential coolant boiling point and boiling the coolant. The Mishimoto 1.1 Bar Overflow Reservoir Cap will keep coolant where it needs to be, flowing within the system.

Use manufacturer part number MMRC-11-FRD to identify this exact Mishimoto configuration. Match the full part number, vehicle application, position, dimensions, material, finish, and included components before ordering.

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Anything Coyote

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Buying parts for your Mustang or F-150 should not feel like homework. Too many stores bury you in a giant catalog, slap the same distributor description on every product, and leave you guessing whether it even fits.


We do it the other way. We carry the brands you already trust, we tell you what a part actually does, and we give you the truth about the tradeoffs before you spend a dollar. Drone on that exhaust. Ride quality on those springs. Whether you need a tune. The stuff the big catalogs leave out.

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