Exhaust Flapper With Clamp 4 in. | Sierra 18-4457 Buffing & Compound Pads protect the restored finish with

protect the restored finish with a coat of Premium Marine Polish

Regular inspections are advised

It's crafted specifically to extend the lifespan of underwater equipment

Quicksilver Fuel Fitting

(1) SuzukibulletinC

Exhaust Flapper With Clamp 4 in. | Sierra 18-4457 Buffing & Compound Pads protect the restored finish withExhaust Flapper With Clamp 4 in. Sierra 18 4457 Sierra 4 in. Exhaust Flapper With Clamp 18 4457 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