Mercury - Cross Pin - 8M0020941
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The Mercury Quicksilver Cross Pin 17-8M0020941 is an OEM internal lower-unit gearcase component used in compatible Mercury outboard and MerCruiser drive applications. This pin passes through the clutch dog and propeller shaft assembly, helping lock shifting components together inside the gear housing.
Key Features
- Genuine Mercury/Quicksilver gearcase cross pin
- Part number: 17-8M0020941
- Also referenced as 8M0020941
- Used with clutch dog and propeller shaft assemblies
- Lower-unit internal powertrain component
- Designed for high-load shifting and gearcase operation
Engine Compatibility
Used on select Mercury outboard and MerCruiser lower-unit applications, including various mid-to-high horsepower Mercury outboards and select Alpha One, Alpha One Gen II, Vazer, and MR-style lower-unit assemblies.
Serial Number Fitment Notice
Verify fitment by engine or drive serial number, gear ratio, and lower-unit parts diagram before ordering. Cross pins can vary by gearcase design, clutch dog style, and propeller shaft assembly.
When This Part Needs Replacement
Replace this cross pin if it is worn, scored, bent, cracked, sheared, or damaged during lower-unit disassembly. It should also be inspected during clutch dog, propeller shaft, gear, or shift-component service.
Installation Notes
Installation requires lower-unit disassembly. Inspect the clutch dog, propeller shaft, shift components, gears, bearings, and seals during service. Always follow Mercury service procedures and replace any related worn components before reassembly.
Alternate/Superseded Part Numbers
Replaces Mercury 17-30632. Superseded by 17-8M0084681 and 17-8M0100263.
Parts Desk Insight
This is a small part inside a high-load gearcase assembly, so matching by serial number and lower-unit diagram is critical. A cross pin that looks similar may not match the clutch dog and prop shaft setup correctly.
Shipping: Ships same or next day for fast Canada wide shipping. ⚓
Shipping information
In-stock and OEM parts: ship same or next business day.
Locally warehoused items: ship within 3–4 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.