PRODUCT DETAILS
CDI Unit for Mercury / Mariner Outboard 9.9HP 15HP 4-Stroke
High-quality CDI ignition unit designed to restore consistent spark and reliable engine performance for Mercury and Mariner 4-stroke outboards.
Will Fit:
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Mercury / Mariner Outboard 4-Stroke
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9.9HP (323cc) 1998–2005 — Serial numbers: 0P075166 through 0P400999
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15HP (323cc) 1996–2005 — Serial numbers: 9973100 and up
Replaces Mercury / Mariner Part Number:
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835401T1
May fit other models and years not listed.
Please send your engine details and our team will happily check compatibility for you!
Product Features:
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High-quality aftermarket CDI ignition unit
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Built to OEM specifications for Mercury / Mariner outboards
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Strong, reliable spark for smooth engine running
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Durable, marine-grade construction
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Easy to install — direct fit replacement
Please check compatibility before purchasing.
If unsure, contact us — our SSI Marine team is happy to help!
Why Buy from SSI Marine?
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High-quality marine parts at competitive prices
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UK stock — same-day dispatch (orders before 1 PM)
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Tracked 24-hour delivery
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Friendly, expert customer service
Order now from SSI Marine — trusted supplier of premium outboard parts with fast UK shipping!
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.