OEM Mercury / Quicksilver Thermostat Bypass 160°F 991551
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Description
Description
OEM Mercury/Quicksilver 160°F thermostat bypass assembly, including thermostat and necessary gasket.
Genuine factory part designed for closed-cooling systems
Fits 1998 and newer MerCruiser marinized GM V6 & V8 engines
Helps regulate water temperature to protect the engine and maintain optimal performance
May fit a wide range of MerCruiser V6 and V8 models—confirm fitment using your engine’s serial number.
