Mercury MerCruiser Quicksilver Engine Cover Securing Knob 863701
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 11-863701 is the securing knob for the top engine cover on specified MerCruiser gasoline MPI engines.
Engine Compatibility
Confirmed applications include 350 MAG MPI Horizon MIE mechanical-throttle and MX 6.2L MPI MIE DTS layouts, serial 0W690000–1A089999, plus specified 5.7L Ski EC engines from serial 1A090000.
Replacement and Installation
Replace a missing knob or one with damaged threads. Inspect the cover mounting stud and use the washer specified for the assembly. Tighten according to the service instructions without damaging the cover.
Parts Desk Insight
The securing knob and its washer are separate catalog items. Check both when correcting a loose engine cover.
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.