Thermostat O-ring style rubber gasket 806871Q is for v-6 and V-8 mercruiser stern drive and Inboard engines made by general motors using the newer style, one-piece thermostat Housing. It can also be used on cruiser 4.5L MPI (multi-port injection) and 6.2L mph engines (small/N 2A456613 and up). the Q...

Yamaha Part #688-12411-10-00Thermostat Replaced by new # 6E5-12411-30-00Package Quantity = 1

Brand new, genuine Mercury Marine Thermostat @2. This is a factory original equipment part, not aftermarket.