Sierra Exhaust Water Shutter | Sierra Marine 18-2733 Inboard & Sterndrive mounting hole

mounting hole

3000 amps interrupt capacity @ 250 volts AC

Designed to protect your vessel from the potentially dangerous effects of backfire

Breaks down and neutralizes odor-causing waste materials at the source

traditional anodes like zinc are not as effective

Sierra Exhaust Water Shutter | Sierra Marine 18-2733 Inboard & Sterndrive mounting holeWater Shutter Sierra 18 2733 Water shutter Replaces Mercruiser 60930, 99370A2 Replaces Mallory 9 42801 Additional Information SIERRA has a 58 year history as a leading global manufacturer of aftermarket engine and drive parts for the marine industry. In 2022, we expanded the scope of the SIERRA brand to include a wide range of products for the aftermarket boating business, as well as products for land based applications. The SIERRA brand encompasses