806871Q Thermostat O-ring Gasket 

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 MerCruiser 4.5L MPI (Multi-Port Injection) and 6.2L MPI engines (s/n 2A456613 and up). The Quicksilver brand is the leader in delivering uncompromising engine oils, parts and accessories to the marine industry for over 65 years. Quicksilver is the premier supplier of Mercury Marine Original Equipment replacement engine parts, oils, and accessories, but also works to serve all Original Equipment brands in the marine and powersports industries. It has earned a loyal following by providing the highest quality products that are tested through some of the most rigorous environments and testing procedures. No aftermarket company comes close to the level of research and design as Quicksilver; buying Quicksilver is buying performance, protection and peace of mind.

• O-ring style gasket for one-piece style thermostat housings.
• Durable and long lasting material resists damage from heat and vibration.
• Produced by Mercury Marine to our stringent original equipment manufacturer specifications to maximize the performance of your Mercury and Mariner outboard or MerCruiser stern drive