Hinge Pin Removal Tool for MerCruiser Alpha & Bravo — 91-78310
Hinge Pin Removal Tool for MerCruiser Alpha & Bravo — 91-78310 is backordered and will ship as soon as it is back in stock.
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Hinge Pin Removal Tool for MerCruiser Alpha & Bravo — 91-78310 is backordered and will ship as soon as it is back in stock.
GH MARINE / BELLOWS & RELATED PARTS
About this part
Hinge pin removal tool referenced to 91-78310, 91-7831, and 61077T for hinge pin or hinge bolt service on MerCruiser Alpha and Bravo drive assemblies. This is a service tool for removing hinge pins or hinge bolts, not a replacement hinge pin or bolt; match the tool by its hinge pin service function rather than selecting a propeller-shaft or drive-shaft adaptor listed for the same drive series.
Match the application
Used for hinge bolt and hinge pin removal during service of MerCruiser Alpha and Bravo drive and gearcase assemblies.
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MerCruiser · Alpha Drive Assemblies
Hinge pin / hinge bolt removal service on Alpha drive and gearcase assemblies.
Application match
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MerCruiser · Bravo Drive Assemblies
Hinge pin / hinge bolt removal service on Bravo drive and gearcase assemblies.
Application match
Numbers to compare
| MerCruiser Stern / Out Drive reference numbers | 91-7831, 91-78310, 61077T, 91-61077T |
|---|---|
| Mercury Mariner reference numbers | 91-78310, 91-61077T, 91-61077 |
| GLM reference numbers | 90200, 90230 |
| Sierra reference numbers | 18-9861, 18-9868 |
| Mallory reference number | 9-79805 |
| RECMAR reference numbers | REC91-78310, REC91-61077T |
Technical details
| Product type | Hinge pin removal tool |
|---|---|
| Brand | GH Marine |
| Service function | Removing hinge pins or hinge bolts on MerCruiser Alpha and Bravo drive assemblies |
| Part distinction | Service tool only; not a replacement hinge pin, hinge bolt, propeller-shaft adaptor, or drive-shaft adaptor |
Supplied contents
- Hinge pin removal tool
Workshop sequence
General workshop guidance only; use the service procedure for your exact drive or engine configuration.
- Verify that the service procedure calls for a hinge pin / hinge bolt tool referenced to 91-78310 or the listed cross-reference numbers.
- Support the drive assembly properly before loosening or removing the hinge pins or hinge bolts.
- Engage the tool fully into the hinge pin or hinge bolt interface and follow the service manual procedure for removal and reassembly.
About GH Marine
GH Marine focuses on bellows and related marine service parts. Compare the application details, reference numbers and supplied contents together to select the part for your repair.
Delivery information
Estimated delivery: 7–15 calendar days.
Help with your order
For application questions, have your drive or engine identification and required part number ready.
Payment & Security
Payment methods
Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.







