ARCO 57-5377 Outboard Starter Motor – Mercury 75–115 HP
Free returns on all eligible orders
You have 30 days to request a return. All sale items are final sale.
ARCO 57-5377 Outboard Starter Motor
Put an end to slow cranks and no-starts with this direct-fit replacement starter from ARCO Marine. The 57-5377 is engineered to OEM specifications for Mercury outboards in the 75–115 HP range, delivering reliable engagement every time you turn the key — with no modifications required.
Compatible Applications
- Mercury 75–115 HP outboards (late 1980s–mid 1990s)
- Cross-reference OEM part numbers below to confirm fitment
Replaces OEM Part Numbers
- Mercury 50-57465A1
- Mercury 50-72467
Drive Gear: 10-tooth
Parts Desk Insights
This starter is the right call when your Mercury outboard cranks slowly, clicks without turning over, or fails to engage the flywheel. Best suited for boaters running late-1980s to mid-1990s Mercury 75–115 HP engines who want a reliable, American-engineered replacement. Before replacing the starter, confirm the solenoid is in good shape — the ARCO Mercury / MerCruiser Starter Solenoid (57-SW275) or ARCO Starter Solenoid (57-SW054) are compatible options. For higher-horsepower Mercury applications, see the ARCO 5415 Starter (Mercury 80–115 HP 4-Stroke) or the ARCO 5381X Starter (Mercury/Mariner 150–225 HP).
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.