Exhaust Flapper 5-6"
Free returns on all eligible orders
You have 30 days to request a return. All sale items are final sale.
Help protect your marine exhaust system with an exhaust flapper designed for 5"–6" exhaust applications. This flapper valve includes a stainless steel hose clamp for installation.
Key Features
- Weather resistant rubber flapper valve
- Includes stainless steel hose clamp
Product Compatibility
- Marine exhaust systems (stern drives/inboards) using 5"–6" exhaust flapper protector valve configurations
Product Details
- Product title: Exhaust Flapper 5-6"
- SKU: 47-4458
- Size: 5"–6" exhaust flapper
Parts Desk Insights
Best Use Case: A practical replacement for worn or damaged marine exhaust flapper protector valves where you need a fresh rubber flapper and clamp to help maintain exhaust backflow protection.
Common Issues: If the flapper isn’t sealing properly, you may notice reduced backflow protection or leaks at the connection—confirm hose size and inspect the mating surfaces. Clamp fitment is important; make sure the clamp is positioned correctly and tightened securely as specified in your service instructions/diagram.
Related Products & Accessories
- Browse Exhaust Systems - Explore additional marine exhaust hoses, mufflers, and related backflow prevention parts.
Shipping information
In-stock and OEM parts: ship same or next business day.
Locally warehoused items: ship within 1-3 business days.
Special-order items: timeline confirmed after order.
Returns & warranty
Returns & Satisfaction Guarantee
We stand firmly behind the quality of every product we sell. Your confidence matters to us — and we back it with a straightforward 30-Day Satisfaction Guarantee.
If you are not fully satisfied, you may request a return within 30 days of delivery. All returns must receive pre-approval prior to being sent back. Unauthorized returns will not be accepted.
To qualify for a return:
Item must be in new, unused condition
Product must be in its original packaging
All parts, components, hardware, manuals, and accessories must be included
Packaging must be undamaged and suitable for resale
Important:
Electronics are strictly inspected. No returns on open-box electronics. Exceptions may apply only with prior written approval. Any electronic unit that has been installed, powered, activated, or altered may not be eligible for return.
We are serious about product integrity — and equally serious about taking care of our customers. If there is ever a product issue, contact us immediately so we can make it right.
For return authorization, please contact our support team before shipping anything back.