Mercury MerCruiser Quicksilver Flywheel Housing Cover Seal 87690
In stock items ship same or next day.
Free returns on all eligible orders
You have 30 days to request a return. All sale items are final sale.
Product Description
Mercury Quicksilver 87690 is the flywheel housing cover seal used in specified legacy MerCruiser inboard and ski-engine assemblies. It is a separate component from cover gasket 27-86015 and is shown with the flywheel housing cover.
Key Features
- OEM part number: 87690.
- Flywheel housing cover sealing location.
- GTIN: 745061685680.
- Catalog package size: 8.50 × 1.50 × 0.88 inches; packaged weight: 0.02 lb.
Engine Compatibility
Specific applications include the 330 MIE GM 454 V8, 1977–1980, serials 4623115–5889913, and specified 5.7L Competition Ski GM 350 V8 assemblies, 1987–1995, serials 0B514627–0F775199. Match the housing cover and engine rotation in the parts diagram before ordering.
Replacement and Installation
Inspect the cover seal for damage when the housing cover is removed. Clean the seating area and check the cover and separate cover gasket before reassembly. Use the service procedure for the installed engine.
Parts Desk Insight
The seal and cover gasket have different part numbers. Check both callouts during flywheel-cover service, particularly where right- and left-hand-rotation arrangements differ.
Manufacturer Parts Lookup
Open Mercury’s official parts finder and check the engine or drive serial number and assembly callout.
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.