20 Best 4.3 Mercruiser Exhaust Flapper [2024]

Are you looking for the best 4.3 Mercruiser Exhaust Flapper? Based on expert reviews, we ranked them. We've listed our top-ranked picks, including the top-selling 4.3 Mercruiser Exhaust Flapper.

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1 TITAN 757 PERFORMANCE MerCruiser Exhaust Y Pipe Water Shutter Flappers Replaces 807166A1 Set of 2 TITAN 757 PERFORMANCE MerCruiser Exhaust Y Pipe Water Shutter Flappers Replaces 807166A1 Set of 2
2 Exhaust Flapper Water Shutter kit Replacement for 1998 and newer Mercruiser 807166A1 Pair (Set of 2) Exhaust Flapper Water Shutter kit Replacement for 1998 and newer Mercruiser 807166A1 Pair (Set of 2)
3 UanofCn 99370A2 Marine Water Exhaust Shutter for Mercruiser Stern Drive V6 V8 Engine 4.3L 5.0L 5.7L... UanofCn 99370A2 Marine Water Exhaust Shutter for Mercruiser Stern Drive V6 V8 Engine 4.3L 5.0L...
4 TITAN 757 PERFORMANCE Mercruiser Water Shutter Flappers Replaces 807166A2 V6 4.3L TITAN 757 PERFORMANCE Mercruiser Water Shutter Flappers Replaces 807166A2 V6 4.3L
5 2pcs Exhaust Flappers Water Shutters Kit 807166A1 for Many Mercruiser Stern Drive V8 Engines (Some... 2pcs Exhaust Flappers Water Shutters Kit 807166A1 for Many Mercruiser Stern Drive V8 Engines...
6 Exhaust Flapper Water Shutter for Mercruiser 807166A3 Y-Pipe 1982-1996 Exhaust Flapper Water Shutter for Mercruiser 807166A3 Y-Pipe 1982-1996
7 UANOFCN 1998 and Up Exhaust Y-Pipe Kit Replaces 807166A1 Hose Bellows 32-14358T 32-44348T for... UANOFCN 1998 and Up Exhaust Y-Pipe Kit Replaces 807166A1 Hose Bellows 32-14358T 32-44348T for...
8 GLM Cast Iron Exhaust Manifold for Mercruiser 4.3 V6 Engines 1983-2002, Replaces Part Numbers 99745,... GLM Cast Iron Exhaust Manifold for Mercruiser 4.3 V6 Engines 1983-2002, Replaces Part Numbers...
9 GHmarine 807166A2 Exhaust Water Shutter Kit for Mercruiser Stern Drive 4.3L V6 Engines GHmarine 807166A2 Exhaust Water Shutter Kit for Mercruiser Stern Drive 4.3L V6 Engines
10 UANOFCN 807166A2 Exhaust Water Shutter with Grommets for Mercruiser Stern Drive V6 Engines UANOFCN 807166A2 Exhaust Water Shutter with Grommets for Mercruiser Stern Drive V6 Engines
11 TITAN 757 PERFORMANCE MerCruiser Water Flapper Exhaust Shutter 60930 18-2727 9-42800 TITAN 757 PERFORMANCE MerCruiser Water Flapper Exhaust Shutter 60930 18-2727 9-42800
12 T-20952 4.3L V6 Exhaust Manifold 190 205 Mercruiser 99746A17 Sierra 18-1952-1 GLM 51220 T-20952 4.3L V6 Exhaust Manifold 190 205 Mercruiser 99746A17 Sierra 18-1952-1 GLM 51220
13 Water Shutter Flapper for Exhaust V6 V8 Y Pipe. Replaces Mercruiser 807166A1 Water Shutter Flapper for Exhaust V6 V8 Y Pipe. Replaces Mercruiser 807166A1
14 RPS 4.3L V6 One-Piece Exhaust Manifold Conversion kit to Two-Piece Set Compatible with Mercruiser... RPS 4.3L V6 One-Piece Exhaust Manifold Conversion kit to Two-Piece Set Compatible with Mercruiser...
15 MerCruiser Exhaust Y-pipe Kit 1982-96, 807166A3 Hose Bellows 32-14358T 32-44348T MerCruiser Exhaust Y-pipe Kit 1982-96, 807166A3 Hose Bellows 32-14358T 32-44348T
16 MerCruiser Exhaust Y-pipe Kit 1998+ 807166A1 Hose Bellows 32-14358T 32-44348T MerCruiser Exhaust Y-pipe Kit 1998+ 807166A1 Hose Bellows 32-14358T 32-44348T
17 Vicue New! Pair of 2 Exhaust Flappers Water Shutters for Mercruiser 1998 & Up 807166A1 Vicue New! Pair of 2 Exhaust Flappers Water Shutters for Mercruiser 1998 & Up 807166A1
18 YIHETOP 2pcs Exhaust Flappers Water Shutters Fits 1982-1996 Mercruiser 807166A3 14348A1 14348A2... YIHETOP 2pcs Exhaust Flappers Water Shutters Fits 1982-1996 Mercruiser 807166A3 14348A1 14348A2...
19 Exhaust Manifold Elbow Riser Gasket Set kit Dry Joint MerCruiser 4.3 L v6 Exhaust Manifold Elbow Riser Gasket Set kit Dry Joint MerCruiser 4.3 L v6
20 WFLNHB Y-Pipe Kit 807166A3 Hose Bellows 32-14358T 32-44348T for 82-96 MerCruiser WFLNHB Y-Pipe Kit 807166A3 Hose Bellows 32-14358T 32-44348T for 82-96 MerCruiser
Bestseller No. 1
TITAN 757 PERFORMANCE MerCruiser Exhaust Y Pipe Water Shutter Flappers Replaces 807166A1 Set of 2
  • OEM quality aftermarket replacement
  • Exact item you will receive is pictured
  • Replaces Mercruiser Part Number 807166A1
  • Fits many Mercruiser V6 and V8 stern drive models
  • Does not fit V6 models with one piece maifold
Bestseller No. 2
Exhaust Flapper Water Shutter kit Replacement for 1998 and newer Mercruiser 807166A1 Pair (Set of 2)
  • FITS for MerCruisers engines 1998 and newer.
  • There will be two rectangular holes for the grommets. If your Y-pipe has round holes you need the A3 water shutters. If your Y-pipe changes size a few...
  • Replaces Part #: 807166A1.
  • The replacement part is made from high quality material and well-tested by the manufacturer.
  • Please check carefully the part numbers and compare pictures provided to insure proper fitment.
Bestseller No. 3
UanofCn 99370A2 Marine Water Exhaust Shutter for Mercruiser Stern Drive V6 V8 Engine 4.3L 5.0L 5.7L...
  • Exhaust Water Shutter w/Y Pipe Shutter/Flap Boat Motor for Outboard Engine
  • UanofCn high-quality engine parts are designed to meet OEM specifications
  • For some model: Mercruiser V6 V8 w/3" Y-Pipe 4.3L 5.0L 5.7L
  • Replaces OE#: Mercury Mercruiser Outboard 99370A2 92802, Mallory 9-42801, Sierra 18-2733, GLM 89160
  • Order will be shipped within 24 hours
Bestseller No. 4
TITAN 757 PERFORMANCE Mercruiser Water Shutter Flappers Replaces 807166A2 V6 4.3L
  • New Mercruiser Water Shutter Kit for 4.3L V6
  • Replaces Part#: 807166A2
  • Fits: V6 4.3 One Piece Manifolds Only
  • This will only fit in y-pipe that was on the V-6 engines originally equipped with the one-piece exhaust manifolds. Will not fit later model y-pipes...
  • Includes Flapper & 2 Grommets
Bestseller No. 5
2pcs Exhaust Flappers Water Shutters Kit 807166A1 for Many Mercruiser Stern Drive V8 Engines (Some...
  • ☛ These will Not work on V6 engines that came with the one piece manifolds ( use 807166A2 it has a flat tip ) ,or early V8 with the round pin going...
  • ☛ Used on many Mercruiser stern drive V8 engines. ( Some V6 that came with the two piece maniflold/elbow )
  • ☛ For 1998 and newer engines, there are some 1996 and 1997 models that apply. There will be two rectangular holes for the grommets. If your Y-pipe...
  • ☛ 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...
  • ☛ Please check pictures and description for more details, and check your part number and our fitment before placing an order.
Bestseller No. 6
Exhaust Flapper Water Shutter for Mercruiser 807166A3 Y-Pipe 1982-1996
  • Exhaust Water Flapper for Y-Pipe Exhaust Mercuiser
  • Replaces Part#: 807166A3 / Sierra 18-2732-9
  • Fits Mercruiser: V6 / V8 with 4" Y-Pipe & Round Pin Holes 1982-1996
  • Fits into the Y-Pipe on most V6 & V8 models 1982-1996. Prevents water from backing into the manifold. Not for 4.3L Models with 1 piece manifold
  • OE quality aftermarket replacement, Exact item pictured
Bestseller No. 7
UANOFCN 1998 and Up Exhaust Y-Pipe Kit Replaces 807166A1 Hose Bellows 32-14358T 32-44348T for...
  • We ship from the USA, it is fast and guaranteed.
  • Replaces 807166A1 Water Shutters / Flappers 32-14358 , 32-14358T , 32-14358001 , 18-2746 Lower Exhaust Bellows , Tube , Hose,Clamp
  • Also Replaces 32-44348 , 32-44348T , 32-44348001 , 18-2748 Upper Exhaust Bellows , Tube , Hose,Clamp
  • Note: These will not work on V6 engines that came with the one piece manifolds ( use 807166A2 it has a flat tip ) , or early V8 with the round pin...
  • 100% Brand New With High Quality.Cooperated with local workshop, quality is guaranteed.
Bestseller No. 8
GLM Cast Iron Exhaust Manifold for Mercruiser 4.3 V6 Engines 1983-2002, Replaces Part Numbers 99745,...
  • Cast Iron Exhaust Manifold for Mercruiser 4.3 V6 engines from 1983 to 2002. Replaces MerCruiser part numbers 99745, 99746, 99746A8, 99746A17
  • Includes gaskets, plugs, drain elbow, and blue drain plug. Left and right are the same. Does not fit newer dry-joint manifolds (2002 and newer)
  • 100% Leak Tested. Uniform wall thickness. Clean exhaust passages. Shot peened for smooth external finish. All mounting surfaces CNC machined to...
  • GLM Marine, has catapulted to the forefront in manifold technology by incorporating improvements in design, manufacturing, quality assurance, fault...
  • For over 32 years now, GLM has committed itself to producing high quality and cost effective aftermarket marine products. From superior quality...
Bestseller No. 9
GHmarine 807166A2 Exhaust Water Shutter Kit for Mercruiser Stern Drive 4.3L V6 Engines
  • Exhaust Flapper/Shutter for Mercruiser Part #: 807166A2
  • Fit for Mercruiser V6 4.3L One Piece Manifolds Only
  • Package contains 1Flapper and 2 Grommets
  • Made of Premium Stainless Steel and CR Rubber, High Hardness and Durable, Best Price OEM quality, Ideal Shutter for your selection
  • Order will be shipped within 24 hours
Bestseller No. 10
UANOFCN 807166A2 Exhaust Water Shutter with Grommets for Mercruiser Stern Drive V6 Engines
  • Ship from USA.Orders will be processed under 24 hours.
  • New Replacement exhaust flappers for Mercruiser part number 807166A2. Used on many Mercruiser stern drive V6 engines.
  • They keep water from entering the engine through the exhaust and wear out or break overtime. Replaces: Mercruiser 807166A2
  • Size(L x W x H): 15.7 x 7.7 x 0.4 cm / 6.18 x 3.03 x 0.16 inch
  • 1 Piece Exhaust Y Pipe Water Shutter Flapper
Bestseller No. 11
TITAN 757 PERFORMANCE MerCruiser Water Flapper Exhaust Shutter 60930 18-2727 9-42800
  • OEM quality aftermarket replacement
  • Exact item you will receive is pictured
  • Replaces Mercruiser Part Number 60930 / 27-43809
  • New in Package
  • 30 Day Exchange Warranty
Bestseller No. 12
T-20952 4.3L V6 Exhaust Manifold 190 205 Mercruiser 99746A17 Sierra 18-1952-1 GLM 51220
  • Replaces Mercruiser 99746A17 Sierra Marine 18-1951-1 GLM 51220 Barr MC-1-99746 Osco 9745 HGE 9746
  • High quality, uniform wall thickness, clean exhaust passages
  • Shot peened for smooth external finish
  • All mounting surfaces CNC machined to guarantee exacting gasket mating surface
  • Leak tested and coated with a baked enamel from the factory
Bestseller No. 13
Water Shutter Flapper for Exhaust V6 V8 Y Pipe. Replaces Mercruiser 807166A1
  • One new water shudder for Mercruiser with grommets
  • 2 required Per Engine
  • Replaces Mercury 807166A1
  • Will Not work on V6 engines that came with the one piece manifolds
Bestseller No. 14
RPS 4.3L V6 One-Piece Exhaust Manifold Conversion kit to Two-Piece Set Compatible with Mercruiser...
  • Kit to convert Mercruiser obsolete one-piece manifolds to common two piece manifolds for 4.3 V6 engines
  • Conversion kit for no-longer-available Mercruiser one-piece exhaust manifolds
  • Kit includes Two manifolds (left and right are the same) Two risers (left and right are the same) Two aluminum elbows Two upper rubber couplers Two...
Bestseller No. 15
MerCruiser Exhaust Y-pipe Kit 1982-96, 807166A3 Hose Bellows 32-14358T 32-44348T
  • The bellow kit is designed to meet or exceed OEM specifications. The bellow kit will come exactly as shown.
  • 2x Watter Shutters / Flappers - # 807166A3
  • 2x Lower Exhaust Bellows - # 32-14358 , 32-14358T , 32-14358001 , 18-2746
  • 2x Upper Exhaust Bellows - # 32-44348 , 32-44348T , 32-44348001 , 18-2748
  • For 1982-1996 engines, there are some 1996 and 1997 models that apply. Fits the oval 4" Y-pipes with round pin holes. If you have two rectangular...
Bestseller No. 16
MerCruiser Exhaust Y-pipe Kit 1998+ 807166A1 Hose Bellows 32-14358T 32-44348T
  • The bellow kit is designed to meet or exceed OEM specifications. The bellow kit will come exactly as shown.
  • 2x Watter Shutters / Flappers - # 807166A1
  • 2x Lower Exhaust Bellows - # 32-14358 , 32-14358T , 32-14358001 , 18-2746
  • 2x Upper Exhaust Bellows - # 32-44348 , 32-44348T , 32-44348001 , 18-2748
  • Check Compatibility List Below: (1996-1999 V6 owners PLEASE LOOK AT PICTURE #2)
Bestseller No. 17
Vicue New! Pair of 2 Exhaust Flappers Water Shutters for Mercruiser 1998 & Up 807166A1
  • ☛ These will Not work on V6 engines that came with the one piece manifolds ( use 807166A2 it has a flat tip ) ,or early V8 with the round pin going...
  • ☛ Used on many Mercruiser stern drive V8 engines. ( Some V6 that came with the two piece maniflold/elbow )
  • ☛ For 1998 and newer engines, there are some 1996 and 1997 models that apply. There will be two rectangular holes for the grommets. If your Y-pipe...
  • ☛ 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...
  • ☛ Please check pictures and description for more details, and check your part number and our fitment before placing an order.
Bestseller No. 18
YIHETOP 2pcs Exhaust Flappers Water Shutters Fits 1982-1996 Mercruiser 807166A3 14348A1 14348A2...
  • 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...
  • 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....
Bestseller No. 19
Exhaust Manifold Elbow Riser Gasket Set kit Dry Joint MerCruiser 4.3 L v6
  • Restricted flow gasket set for Mercruiser 4.3L V6 Dry-Joint manifolds
  • Replaces part number 27-864850A02, 27-864850A1, 18-0722
  • This is the Restricted style (one water passage open, plus weep hole)
  • Meets OEM specifications
Bestseller No. 20
WFLNHB Y-Pipe Kit 807166A3 Hose Bellows 32-14358T 32-44348T for 82-96 MerCruiser
  • The bellow kit will come exactly as shown.
  • For 1982-1996 engines, there are some 1996 and 1997 models that apply. Fits the oval 4" Y-pipes with round pin holes. If you have two rectangular...
  • 2x Watter Shutters / Flappers - # 807166A3
  • 2x Lower Bellows - # 32-14358 , 32-14358T , 32-14358001 , 18-2746
  • 2x Upper Bellows - # 32-44348 , 32-44348T , 32-44348001 , 18-2748

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John Harvards provides an 4.3 Mercruiser Exhaust Flapper buying guide, and the information is totally objective and authentic. We employ both AI and big data in proofreading the collected information.

How did we create this buying guide? We did it using a custom-created selection of algorithms that lets us manifest a top-10 list of the best available 4.3 Mercruiser Exhaust Flapper currently available on the market.

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  1. Brand Value: Every brand of 4.3 Mercruiser Exhaust Flapper has a value all its own. Most brands offer some sort of unique selling proposition that’s supposed to bring something different to the table than their competitors.
  2. Features: What bells and whistles matter for an 4.3 Mercruiser Exhaust Flapper?
  3. Specifications: How powerful they are can be measured.
  4. Product Value: This simply is how much bang for the buck you get from your 4.3 Mercruiser Exhaust Flapper.
  5. Customer Ratings: Number ratings grade 4.3 Mercruiser Exhaust Flapper objectively.
  6. Customer Reviews: Closely related to ratings, these paragraphs give you first-hand and detailed information from real-world users about their 4.3 Mercruiser Exhaust Flapper.
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