PRODUCT DETAILS
Starter Motor – For Mercury and Mariner 65 HP, 75 HP, and 90 HP 2-Stroke Outboard Engines
This high-quality replacement starter motor fits a range of Mercury and Mariner 3-cylinder 2-stroke models. Designed for reliable starting performance and long service life in marine environments.
Will fit:
Mercury / Mariner 65 HP (2-Stroke)
Mercury / Mariner 75 HP (2-Stroke)
Mercury / Mariner 90 HP (2-Stroke)
3-Cylinder Models
Replaces Mercury Part Numbers:
50-893891T, 50-66015, 50-65436, 50-60315 (for reference only)
Specifications:
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Rotation: Counter-Clockwise (CCW)
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Drive Gear: 10-Tooth
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Voltage: 12 V
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Marine-grade corrosion protection
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OEM-style mounting pattern for direct replacement
⚠️ Important Compatibility Note:
Some Mercury/Mariner 2-stroke models used 9-tooth starters instead of 10-tooth.
👉 Please check your original starter motor before ordering to ensure you are selecting the correct version for your engine.
✅ Why Buy from SSI Marine?
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Workshop-tested aftermarket & OEM-spec parts
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Fast dispatch from our UK warehouse
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Tracked 24-hour UK delivery
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Expert technical support if you need help identifying your part
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UK stock – same-day dispatch before 1 PM (Mon–Fri)
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Collection available from our Leigh (Manchester) unit
⚠️ Note: It is the buyer’s responsibility to confirm compatibility with your engine model and serial number before purchasing. If in doubt, contact us and our technical team will be happy to help.
SHIPPING & DELIVERY
Delivery:
We offer free shipping on all orders over £150 (excluded outboard engines, trailers)
Standard Shipping - £ 8.50
Orders are typically shipped within 1 business day of receipt of payment. We ship via Royal Mail Tracked 24 delivery service. Delivery times vary depending on the delivery destination.
For engines delivery cost please ask for a quote.
It is the buyer's responsibility to ensure that the correct shipping address is supplied.
All item(s) will be despatched to the registered address.
Tracking your order:
Once your order has been shipped, you will receive a tracking number via email. You can track your order online using the tracking number provided.
Returns:
We accept returns of unused and undamaged items within 30 days of purchase.
To return an item please contact us for a return authorisation number. Return shipping costs are the responsibility of the customer.
Refunds:
Refunds will be issued for the purchase price of the item, less shipping costs. Refunds will be issued in the same form of payment as the initial purchase.









