Sierra 47-06729 Exhaust Elbow Gasket | MerCruiser Closed Cooling | 2-Pack
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Sierra 47-06729 Exhaust Elbow Gasket — MerCruiser Closed Cooling Systems
Keep your MerCruiser stern drive exhaust system sealed and running clean with this OEM-spec exhaust elbow gasket from Sierra. Sold as a 2-pack, these gaskets are purpose-built for closed cooling applications on GM-based V6 and V8 engines with a center-rise outlet exhaust manifold — a common configuration across a wide range of MerCruiser stern drive installations.
Sierra gaskets are manufactured to meet or exceed original equipment specifications, so you get a reliable, leak-free seal without the dealership markup.
Fitment
- Application: MerCruiser stern drives with closed cooling systems
- Engine compatibility: GM-based V6 and V8 engines with center-rise outlet exhaust manifold
- Compatible manifold: 18-1953-2
- Compatible manifold spacers: 18-1985, 18-1908
- Compatible elbows: 18-1970-2, 18-1976-2, 18-1974-1
What's Included
- 2 × exhaust elbow gaskets (sold as a set)
Parts Desk Insights
This gasket is the right choice when you're servicing or replacing the exhaust elbow on a closed-cooling MerCruiser with a center-rise manifold — a very common setup on older GM V8 stern drives. Always replace the elbow gaskets any time the elbow is removed; reusing a compressed gasket is a leading cause of exhaust leaks after service. If you're doing a full exhaust refresh, also consider the Sierra 18-0943-2 Exhaust Elbow Gasket 2-Pack or the Sierra 18-8519 Exhaust Elbow Mounting Kit depending on your specific elbow configuration. SKU: 47-06729.
Shipping information
In-stock and OEM parts: ship same or next business day.
Locally warehoused items: ship within 3–4 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.