Exhaust Protector Valves

Blowout
Save 23%-25% Off.
Exhaust Protector Valve - Sierra
Your Price: $22.99
Save: $4.64
(16% Off $27.63)
Part # 18-4456
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Includes Stainless Steel Clamp 3"

Replaces OEM part #
  • MERCURY MARINE 34765A 2
  • MERCURY MARINE 34765A1
Exhaust Flapper, 4" - Sierra
Your Price: $24.99
Save: $4.43
(15% Off $29.42)
Part # 18-4457
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Includes Stainless Steel Clamp 4"

Replaces OEM part #
  • MERCURY MARINE 12644A1
  • MERCURY MARINE 12644A1
Exhaust Protector Valve - Sierra
Your Price: $44.99
Save: $8.18
(15% Off $53.17)
Part # 18-4458
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Includes Stainless Steel Clamp
Fits both 5" & 6" Exhaust
Mallory Exhaust Flapper 5-6" 9-44002
Mallory Exhaust Flapper 5-6" 9-44002
Spring Sale Price: $40.49
Save: $12.68
(23% Off $53.17)
Part # 9-44002
Hurry! Only 1 left in stock
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Replaces GLM #:89260
Replaces Original Equipment Manufacturer(OEM):Universal
Replaces Original Equipment Manufacturer # (OEM #):n/a
Fits Application:Universal
Mallory Exhaust Flapper 4" 9-44001
Spring Sale Price: $22.49
Save: $6.93
(23% Off $29.42)
Part # 9-44001
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Replaces GLM #:89250
Replaces Original Equipment Manufacturer(OEM):Mercruiser
Replaces Original Equipment Manufacturer # (OEM #):12644A1
Fits Application:Universal
Mallory Exhaust Flapper 3" 9-44000
Spring Sale Price: $20.69
Save: $6.94
(25% Off $27.63)
Part # 9-44000
No Reviews | Write Review
Replaces GLM #:89240
Replaces Original Equipment Manufacturer(OEM):Mercruiser
Replaces Original Equipment Manufacturer # (OEM #):34765A2
Fits Application:Universal
Sierra
Premium 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.
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Great Boating Days are Ahead!
Enjoy Extra Discounts 5-20% Off During the SPRING SAVINGS SALE!
Great Boating Days are Ahead!
Enjoy Extra Discounts 5-20% Off During the SPRING SAVINGS SALE!