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Centek
Centek 3" to 4" Fiberglass Exhaust Reducer #1200170
$83.67
$103.86
Centek 1200170 Accessories
Centek fiberglass inline exhaust reducer coupling.
3 in. x 4 in. Fiberglass Exhaust Reducer Coupling
Connects 3" inside diameter hose to 4" inside diameter hose
10 in. length
Designed for use in marine exhaust systems
Normalized SKU: 1200170UPC Code: 808880120845
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Centek
Centek Reducer Couplings 3" x 3."5 #1200161
$72.67
$90.22
Centek 1200161 AccessoriesCentek Reducer Couplings 3" x 3."5 #1200161Normalized SKU: 1200161UPC Code: 808880120821
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Buck Algonquin
Buck Algonquin Exhaust Transom SS 3" #70TE300
$281.75
$357.85
Buck Algonquin 70TE300 Accessories
Transom Exhaust 3 in.
316 stainless steel
5 in. length under flange
5 in. flange outer dimensions
8 degree flange angle
1/4 in. c.s. screw size
Normalized SKU: 70TE300UPC Code: 616316631144
M.P.I.
M.P.I. Exhaust Flapper #201-400C
$9.99
M.P.I. 201-400C AccessoriesM.P.I. Exhaust Flapper #201-400CNormalized SKU: 201400CUPC Code: 700320007995
M.P.I.
MPI 4" Exhaust Flapper #201-4000C
$9.99
M.P.I. 201-4000C AccessoriesMPI 4" Exhaust Flapper #201-4000CNormalized SKU: 2014000C
Mercury Marine
Mercury Marine Exhaust Flapper/Shutter Late Syle 4" with Housing #807166A3
$100.49
Mercury Marine 807166A3 AccessoriesMercury Marine Exhaust Flapper/Shutter Late Syle 4" with Housing #807166A3Normalized SKU: 807166A3UPC Code: 745061286160WARNING: This product can expose you to chemicals which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to P65Warnings.ca.gov.
Mercury Marine
Mercury Marine Shutter Water #99370A2
$38.99
Mercury Marine 99370A2 Exhaust AccessoriesQuicksilver water shutter Mercruiser engines.Normalized SKU: 99370A2UPC Code: 745061226920
Mercury Marine
Mercury Marine Shutter Early Style 4" without Housing #807166A1
$86.49
Mercury Marine 807166A1 Exhaust AccessoriesQuicksilver water shutter Mercruiser engines.Normalized SKU: 807166A1UPC Code: 745061286146
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Sierra
Sierra Exhaust Protector Valve Display Pack #18-4457D
$37.12
$44.31
Sierra 18-4457D AccessoriesExhaust Protector Valve (Display Pack)Sierra Exhaust Protector Valve (Display Pack) #18-4457DNormalized SKU: 184457DUPC Code: 808282188009
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Sierra
Sierra Exhaust Protector Valve Display Pack #18-4456D
$3.20
$3.76
Sierra 18-4456D AccessoriesExhaust Protector Valve (Display Pack)Sierra Exhaust Protector Valve (Display Pack) #18-4456DNormalized SKU: 184456DUPC Code: 808282187996
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Sierra
Sierra Exhaust Protector Valve Display Pack #18-4458D
$55.28
$66.33
Sierra 18-4458D Accessories
Features:
Compounded rubber flapper valves prevent water from entering the exhaust system
Made with weather-resistant EPDM with U/V stabilizer
5" Requires two 45° cuts
In Display Pack
Additional Details:
Includes: Stainless Steel Clamp
Size: 5" & 6" or 127mm & 152.4mm
Exhaust Protector Valve (Display Pack)
Sierra Exhaust Protector Valve (Display Pack) #18-4458D
Normalized SKU: 184458DUPC Code: 808282184735
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Sierra
Sierra End Plate #18-5021
$36.74
$43.85
Sierra 18-5021 AccessoriesEnd PlateOEM Interchange:MERCURY MARINE: 805629Sierra End Plate #18-5021Normalized SKU: 185021UPC Code: 808282197919
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Sierra
Sierra Exhaust Protector Valve #18-4458
$75.69
$93.96
Sierra 18-4458 Accessories
Features:
Compounded rubber flapper valves prevent water from entering the exhaust system
Made with weather-resistant EPDM with U/V stabilizer
5" Requires two 45° cuts
Additional Details:
Includes: Stainless Steel Clamp
Size: 5" & 6" or 127mm & 152.4mm
Exhaust Protector Valve
Sierra Exhaust Protector Valve #18-4458
Normalized SKU: 184458UPC Code: 030999621870
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Sierra
Sierra Exhaust Boot #18-2746
$47.69
$57.22
Sierra 18-2746 AccessoriesExhaust BootOEM Interchange:MERCURY MARINE: 32-14358TSierra Exhaust Boot #18-2746Normalized SKU: 182746UPC Code: 030999752949
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Sierra
Sierra Exhaust Boot #18-2748
$44.63
$53.55
Sierra 18-2748 AccessoriesExhaust BootOEM Interchange:MERCURY MARINE: 32-44348TSierra Exhaust Boot #18-2748Normalized SKU: 182748UPC Code: 030999752963
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Sierra
Sierra Exhaust Boot #18-2745
$42.72
$51.26
Sierra 18-2745 AccessoriesExhaust BootOEM Interchange:OMC: 912374Sierra Exhaust Boot #18-2745Normalized SKU: 182745UPC Code: 030999752932
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Sierra
Sierra Water Shutter 2-pk #18-2732-9
$79.37
$98.53
Sierra 18-2732-9 AccessoriesWater Shutter (Priced Per Pkg of 2)Sierra Water Shutter (Priced Per Pkg of 2) #18-2732-9Normalized SKU: 1827329UPC Code: 808282166823
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Sierra
Sierra Water Shutter #18-2733
$34.33
$40.98
Sierra 18-2733 AccessoriesWater ShutterOEM Interchange:MERCURY MARINE: 99370A2Sierra Water Shutter #18-2733Normalized SKU: 182733UPC Code: 808282124670
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Sierra
Sierra Exhaust Water Shutter #18-2727
$37.99
$45.34
Sierra 18-2727 Accessories
Exhaust Water Shutter
Length: 3"
Width: 3.780"
OEM Interchange:MERCURY MARINE: 60930
Normalized SKU: 182727UPC Code: 808282111663
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Sierra
Sierra Exhaust Protector Valve #18-4457
$40.08
$48.10
Sierra 18-4457 AccessoriesPremium Protector Valves for wet exhausts are made of 100% durable EPDM that is extremely resistant to UV light, ozone, heat, and weather aging. For salt or fresh water. It will give the boat's exhaust system dependable protection in any harsh marine environment. Complete with stainless steel clamps.Replaces: 12644A1OEM Interchange:MERCURY MARINE: 12644A1Sierra Exhaust Protector Valve #18-4457Normalized SKU: 184457UPC Code: 030999621863
Frequently Asked Questions
First Choice Marine is an online marine retailer carrying a diverse line of marine parts and accessories and related items from industry-respected and demanded manufacturers and suppliers. Through our diverse distributor network, we are able to access over 150,000 items, including our current site inventory, new products being added, and special order items. If you need it on your boat... we are your one-stop shop!
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