Description
Sierra_47 - 18-4457 EXHAUST FLAPPER 4 INCH EXHAUST PROTECTOR VALVE (Sierra)
Includes:
• Stainless steel hose clamp.
• Weather resistant rubber flapper valve
Replaces: MerCruiser 12644A
Size 4"
Alternate - SIE 4457 18-4457 47-4457
Specs
UPC: |
030999621863 |
MPN:
|
18-4457
|
Reviews
We're currently collecting product reviews for this item. In the meantime, here are some reviews from our past customers sharing their overall shopping experience.
4.9
Out of 5.0

Overall Rating
98%
of customers that buyfrom this merchant give
them a 4 or 5-Star rating.
April 2, 2025 by Thomas P. (United States)
“SW Rob so very helpful in getting my information prior to placing order. Rob is a true asset to your company. Thank you.”
April 2, 2025 by Brent (NY, United States)
“Great seller.”
April 2, 2025 by Kenneth B. (Florida, United States)
“purchased and delivered”