Some engine models will require a closed cooling kit, a belt kit, and a seawater pump kit. Other models will not require all these kits. A note indicates that there might be a different kit that is required to make the kits fit the engine on which the closed cooling is being installed. N/A = Not Applicable. Front mounted kit 879288A39 Full closed system which also protects the dry joint exhaust manifolds from corrosion. Fits the following models: 2008-2016 MerCruiser Marine V-8 (305, 350 & 377) Multi-Port Fuel Injection Emissions Control engines 2008-2016 MerCruiser Inboard V-8 (305, 350 & 377) Multi-Port Fuel Injection Emissions Control engines