Exhaust Flapper Valves

Model # 361966 Mfg # 18-4458D
5 out of 5 Customer Rating
Advice & How-To
Orders placed by 3 PM EST typically ship the same day. Orders placed after this time will be processed the next business day.
Exhaust Flapper Valves
Model # 361966 Mfg # 18-4458D
5 out of 5 Customer Rating
Advice & How-To
Orders placed by 3 PM EST typically ship the same day. Orders placed after this time will be processed the next business day.
Select a Product: 18-4458D Exhaust Flapper Valve - 5" or 6"
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Flapper valves prevent backflow and help to protect engines against water intrusion.

Heavy-duty rubber flapper valve keeps following seas from entering exhaust outlet when moving slowly or stopping.

Key Features

  • Heavy-duty rubber
  • Includes adjustable stainless-steel clamp
  • 3", 4", 5"/6" diameters

Sierra Limited Lifetime Warranty

Type Flapper Valve

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