Sierra's 18-43017 Thermostat replaces O.E. Part Numbers 863358T, 8M0074922, 8M0076464, S985009, and 9-43017. It is designed for use in Mercruiser 496 Mag and HO and MIE 8.1L and HO I/O engines. Also used for Indmar GM and Ford raw water cooled engines. The thermostat features a 160°F temperature rating. Check manufacturer recommendations to ensure a proper fit before purchasing. Built with marine grade materials.
Replaces O.E. Part Numbers 863358T, 8M0074922, 8M0076464, S985009, and 9-43017
Designed for use in Mercruiser 496 Mag and HO and MIE 8.1L and HO I/O engines
Also used for Indmar GM and Ford raw water cooled engines
Temperature Rating: 160°F
Check manufacturer recommendations to ensure a proper fit before purchasing