MerCruiser GM 5.0L/5.7L V8 - Half Systems

Mercruiser 1/2 System Fresh Water Cooling Systems

Mercruiser Closed Cooling System features and Terminology

Marine engines were never intended to be operated in an environment where corrosive salt water would be used to cool the engine. Due to this we recommend installing a Fresh Water Cooling Systems in an effort to protect and prolong the life of your engine.