Thermostat 8M0139434

Quicksilver thermostat 8M0139434 fits Mercury 15-20hp EFI 2-cylinder outboards, model years 2017 and newer. 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. - Fits Mercury 15hp and 20hp EFI 4-stroke outboards (serial No. 0R833820 and above) - Self-cleaning design allows cooling system contaminants to flush through closing surfaces - Calibrated for proper cooling system temperature response - Self-cleaning design allows cooling system contaminants to flush through closing surfaces. - Easy to replace with common tools - See your owner's manual for removal of non-functioning thermostat and replacement of new thermostat - Produced to meet Mercury Marine original equipment manufacturer specifications to maximize the performance of your Mercury and Mariner outboard or MerCruiser sterndrive