14348A 1 Mercruiser WATER SHUTTER

Mercruiser 807166A3 Exhaust Flapper Water Shutter Replaces 14348A1 5.0L 5.7L V6
[Use]Cooling Systems (Water) || [Description]The Item is a impeller replacement

MARKGOO Water Shutter Kit 807166A3 for Mercury MerCruiser Inboard Stern Drive V6 V8 Engine 3.0L 3.6L 4.2L 4.3L 5.0L 5.7L 7.4L Sierra 18-2732 14348A1 14348A2 14348 exhaust flapper 2 Pieces
MARKGOO Water Shutter Kit 807166A3 fits MerCruiser Sterndrive engines from year 1982 to 1996 , there are some 1996 and 1997 models that apply. Fits oval 4" Y-pipes with round pin holes. || Also called a water flapper. Acts as a flexible check valve to stop water from returning up the exhaust system to the engine. || Fit for MerCruiser Stern Drive 3.0L 3.6L 4.2L 4.3L 5.0L 5.7L 7.4L Diesel or Gas Engines. || The Part number is Replaced by 807166A3 14348A1 14348A2 14348 GLM Marine 89170 Mallory 9-42802 Sierra Marine 18-2732. || If you have two rectangular holes for the grommets you need the A1 water shutters. If your Y-pipe changes size a few inches bellow the shutter you have a one piece manifold V6 Y-pipe and need shutter 807166A2.

YIHETOP 2pcs Exhaust Flappers Water Shutters Fits 1982-1996 Mercruiser 807166A3 14348A1 14348A2 Sierra 18-2732
New Pair of Replacement Water Shutters,1 pair Required Per Engine. || Replaces Part #: 807166A3, 18-2732-9, 143481 , 14348A1 , 14348A2 || For 1982-1998 Mercruiser 5.0L 5.7L V8 & 4.3L V6 || For 1982 to 1996 engines, there are some 1996 and 1997 models that apply. . Fits oval 4" Y-pipes with round pin holes. If you have two rectangular holes for the grommets you need the A1 water shutters. If your Y-pipe changes size a few inches bellow the shutter you have a one piece manifold V6 Y-pipe and need shutter A2. || If you have ever overheated these tend to get damaged. Sometimes you will find pieces of them in the exhaust when you remove the drive for servicing. They help keep water from entering the engine through the exhaust.