Quicksilver 991551 Replacement 160 Degree F Thermostat Select Mercuiser V6 & V8 engines 2024-02-21 They work with all Weaver-style

They work with all Weaver-style

7L V10 350-425hp and 7

The hoodie features multi-zone heat elements on the chest

Mount Compatibility Picatinny and Weaver

Quicksilver 991551 Replacement 160 Degree F Thermostat Select Mercuiser V6 & V8 engines 2024-02-21 They work with all Weaver-styleThermostat 991551 is a 160F replacement for newer MerCruiser V6 and V8 engines equipped with closed cooling systems. Produced to meet Mercury Marine original equipment manufacturer specifications, this thermostat ensures your engine operates at the ideal temperature for maximum power and efficiency. Fits 1998 and newer MerCruiser V6 and V8 engines (GM based) Specifically for engines using closed cooling systems 160F operating temperature Easy to