PRODUCT DETAILS
50-300HP Dual Output Ignition Coil – Mercury / Mariner 4-Stroke EFI (2003 & Up)
Precision-built, marine-grade ignition coil designed for Mercury & Mariner EFI 4-stroke outboards, delivering strong spark performance and reliable ignition.
Fits:
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Mercury / Mariner
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50HP – 300HP
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4-Stroke EFI Models
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2003 & newer
Important: Does NOT fit all engines in this HP range. Always verify your existing part number before purchasing.
Replaces OEM Part Numbers:
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300-8M0044991
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8M0044991
(Other cross references may include 8M004491, 8M0029482 depending on model – verify before ordering)
Product Details
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Dual output coil (fires two spark plugs)
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High-quality aftermarket, marine-grade construction
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Direct replacement (where part numbers match)
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Stable spark under load, corrosion-resistant design
Package Includes
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1 × Dual Output EFI Ignition Coil
Buyer Fitment Notice
This coil will not fit all 50-300HP models.
Mercury used multiple ignition coil types across EFI engines.
You must check your existing part number first.
If unsure, message us with your engine model + serial number, and we will confirm the correct coil for you.
Why Buy From SSI Marine
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Trusted UK marine parts supplier
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Premium aftermarket components
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Fast UK dispatch
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Tracked 24 hr delivery available
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Expert technical support before & after purchase
Shipping
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UK Stock
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Same day dispatch when ordered before 1pm (Mon-Fri)
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Fully tracked delivery
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.
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