Mercury MerCruiser Quicksilver Hinge-Pin Installation and Removal Tool 78310
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 MerCruiser Quicksilver 91-78310 is the service tool for removing and installing MerCruiser sterndrive hinge pins. It is used during the transom-assembly work that requires access to the hinge-pin connection.
Key Features
- Genuine Quicksilver hinge-pin service tool.
- Catalog number: 91-78310; bare reference: 78310.
- Designed for both removal and installation.
- GTIN: 745061465879.
Product Compatibility
Mercury identifies this tool for MerCruiser sterndrives. The service-tool catalog includes MC-I, R, MR, Alpha, Alpha Gen II, Bravo and Blackhawk transom assemblies. Check the drive’s service manual for the exact tool callout and procedure.
Installation and Use
Support the components as directed before releasing the hinge connection. Seat the tool fully in the hinge pin and inspect the tool and pin drive surfaces for damage. Use the service-manual tightening specification and thread-treatment instructions when installing the pin.
Parts Desk Insight
This listing is for the hinge-pin tool. Match the drive’s service-tool requirement before beginning gimbal-ring or bell-housing work.
Manufacturer Parts Lookup
Use Mercury’s official parts finder to check the part against your engine or drive serial number.
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.