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Sierra 18-4457 4 in. Exhaust Flapper With Clamp

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Sierra 18-4457 4 in. Exhaust Flapper With Clamp
Retail Price: $42.89
Your Price: $41.10
You Save: $1.79 (4 %)
11 in stock. Ships same day or next business day.
Part Number: SIERRA-18-4457
Manufacturer: Sierra Marine
Manufacturer Part No: 18-4457
Sierra 18-4457 4 in. Exhaust Flapper With Clamp. Exhaust protector valve mounts on the outside of 4 in. exhaust tip to prevent backflow of water into the exhaust.
  • For 4 in. diameter exhaust thru hulls
  • Prevents backflow of water into exhaust system
  • Stainless steel clamp included
  • Designed to mount on the outside of exhaust tips
  • Replaces Mercury 12644A1, 12644Q01
  • Replaces OMC/Johnson/Evinrude 509495
  • Replaces Mallory 9-44001

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