Mercury MerCruiser Quicksilver O-Ring .612 x .103 in. 45711
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 25-45711 is an OEM O-ring with a catalog size of .612 x .103 inches. It seals specified Mercury outboard tilt-tube joints and selected MerCruiser reverse-lock-valve covers.
Key Features
- OEM number: 25-45711.
- Catalog size: .612 x .103 inches.
- Supersedes 25-F455342.
Compatibility and Fitment
A documented outboard application is Mercury 80 hp three-cylinder, serial 9506481 through 9589038, transom bracket position 7. For MerCruiser applications, match the valve-cover O-ring callout in the shift-bracket/reverse-lock-valve diagram.
Replacement and Installation
Replace cut, flattened or damaged rings. Clean the groove and follow the assembly-specific lubrication and installation instructions, keeping the ring seated without twisting.
Alternate / Superseded Part Numbers
25-45711 supersedes 25-F455342.
Mercury Parts Finder
Search Mercury parts by serial number or part number.
Parts Desk Insight
This number is used in more than one system. The tilt-tube application and reverse-lock-valve application share the part number but require different service procedures.
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.