Alternator belt 828507Q5 is for 3L, V6 Mercury OptiMax outboards (non-Pro models) (serial No. 1B227000 and above). It is the same belt as installed by Mercury Marine. See your owner's manual or service manual for specific applications. Replace worn or damaged belts to maintain proper function of engine systems driven by the belt. Easy to install using common tools.
Replacement alternator belt for select 3L, V6 OptiMax outboards
Replacement belt matches original as installed by Mercury Marine
Replace worn or damaged belts to maintain proper function of engine systems driven by the belt
Produced to meet Mercury Marine original equipment manufacturer specifications to maximize the performance of your Mercury and Mariner outboard or MerCruiser sterndrive