Quicksilver 47508T Brass Retaining #1 Thermostat Sleeve for Select MerCruiser V6 and V8 Engines SOFT PLASTICS Mercury parts ensure the best

Mercury parts ensure the best fit and performance

12 and 15 Series

197c and HDR650

hardened brass main gear and cut with Japanese Hamai precision

the Striker eVolve Rain Jacket has you covered

Quicksilver 47508T Brass Retaining #1 Thermostat Sleeve for Select MerCruiser V6 and V8 Engines SOFT PLASTICS Mercury parts ensure the bestThermostat sleeve 47508T is a critical brass retaining component designed for early MerCruiser V6 and V8 thermostat housings. Engineered specifically for high horsepower sterndrive and inboard engines with Design #1 housings, this sleeve ensures your thermostat remains properly seated for reliable cooling system regulation. Produced to meet Mercury Marine original equipment manufacturer specifications. Brass retaining sleeve for early Design #1