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MERCURY OEM WATER SHUTTER KIT | 807166A3 Water shutter assembly two pack This shutter is 2.5 inches diameter at the cross pin. Check your owner's manual or parts manual for exact fitment. Also known as a water flapper, the shutter is open for exhaust to exit the engine and closes when the engine is not running to keep water from flowing back to the engine causing corrosion or serious damage to the engine. Fits inline inside the exhaust system for stern drive installations. TURBO CHARGER EXHAUST ELBOW 710-807166A1
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🇺🇸 Ship from USA · On Agora since 2025
$89.77