Mercury – Quicksilver Water Shutter | For Select MerCruiser Sterndrive Engines | 807166A1 Mercury Outboard Gear Lube Kits Easy installation with common tools

Easy installation with common tools

High Visibility Orange Skier Down Flag for Safety

Product application notes: Yamaha Trim and Oil Harness - 23' - Used on 2005 and Newer Yamaha Outboard models with Digital Multifunction Gauges

making it a crucial component for your outboard motor's maintenance needs

Mercury – Quicksilver Water Shutter | For Select MerCruiser Sterndrive Engines | 807166A1 Mercury Outboard Gear Lube Kits Easy installation with common toolsMercury Quicksilver Water Shutter For Select MerCruiser Sterndrive Engines 807166A1 Overview A small part with a big job, the Mercury Marine 807166A1 Quicksilver Water Shutter helps keep water where it belongs out of your engine. Designed for select MerCruiser sterndrive and inboard engines, this shutter sits inside the exhaust system and acts like a one way valve. When your engine is running, it allows exhaust gases to flow freely. When its idling,