MerCruiser Thermostat O-ring Gasket 27-806871Q
- Brand:
- Mercury
- Part no:
- 27-806871Q
Where to buy
View on Amazonpaid link
This is the MerCruiser thermostat gasket 27-806871Q, an O-ring style rubber gasket that replaces 27-806871. It is meant for V-6 and V-8 stern drive and inboard engines built by General Motors. It goes with the newer single-piece thermostat housing. It is also approved for MerCruiser 4.5L and 6.2L MPI engines from a stated serial number up.
Our take
The gasket is for the newer one-piece thermostat housing, so the first check is which housing your engine has. The 4.5L and 6.2L MPI engines are covered too, from a stated serial number up.