Mercury MerCruiser Quicksilver M6 Stainless Steel Nut 401386
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 11-401386 is an M6 stainless-steel nut used across specified Mercury outboard assemblies. A documented example is the gear-housing/driveshaft assembly on Mercury 40 hp EFI Jet engines with the 1.83:1 gear ratio.
Key Features
- OEM number: 11-401386.
- Metric size: M6.
- Material: stainless steel.
- GTIN: 745061143821.
Compatibility and Fitment
The referenced 40 hp EFI Jet application covers serial numbers 1C051324 through 1C453839, where 401386 appears at diagram position 7. Match the exact assembly rather than assuming every M6 location uses this nut.
Replacement and Installation
Replace damaged or corroded hardware. Check the mating fastener and use the tightening and any retention instructions specified for that location.
Mercury Parts Finder
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Parts Desk Insight
This part is listed as an M6 stainless nut. Do not substitute a nylon-insert or other locking nut merely because its thread fits unless the assembly calls for that design.
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.