Sierra 1 3/4 Id Circulating Pump Hose For Mercruiser Stern Drives Sierra 1 3/4 Id Circulating Pump Hose For Mercruiser Stern Drives Sierra 1 3/4″ ID Circulating Pump Hose for Mercruiser Stern Drives replaces: Mercury Marine 32-33189 replaces: Mercury Marine 32-87108 Share this:TwitterFacebookLike Loading... Related Standard