Sierra
Exhaust Flapper, 4" - 18-4457 - Sierra
Price: $22.42
Save: $7.57
(25% Off $29.99)
Part # 18-4457
2nd Day Air for $2.99 More Eligible
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This item is found in the following Product Families

Key Features:

  • Compounded rubber flapper valves prevent water from entering the exhaust system
  • Made with weather resistant EPDM with U/V stabilizer

Additional Details:

  • Includes: Stainless Steel Clamp
  • Size: 4" or 101.6mm


Replaces OEM part #
  • MERCURY MARINE 12644A1
Q:
Does this fit 87 carver 32?
A:
This is designed to replace the following OEM Part Numbers: GLM 89250, Mallory 9-44001, Mercury Marine 12644A1.


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