MMR Head Cooling MOD (HCM) for Mustang/F150 2011-20


Head Cooling MOD HCM
for Ford Mustang/F150 2011-20
Manufactured by MMR | Part #455478


  • Helps Prevent Hotspots in rear cylinders
  • O ring seal & bolt in design cannot leak or fall out like factory freeze plugs
  • Can be used for Plumbing dry decked cylinder heads on race applications

Designed to help eliminate hotspots in the #8 cylinder by promoting coolant flow around cylinder # 8 - the cylinder long known to be the first to detonate with aggressive naturally aspirated tunes and forced induction. Don't fall victim to this failure, protect your investment with this simple, professional kit. Installation requires tapping out the factory freeze plugs and simply installing the MMR kit. Kit seals with high-grade O rings (included). The socketless hose does not require hose clamps for simple push on installation.

    Vehicle application

    • 2011-2017 Mustang GT
    • 2012-2013 BOSS Mustang
    • 2016-2017 GT350
    • 2011-2017 F150

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