30-250HP CDM Ignition Coil for Mercury Mariner 2-Stroke | Replaces 827509A10, 827509A4, 827509A7, 827509T7
PRODUCT DETAILS
SSI Marine Replacement CDM Ignition Coil – Mercury & Mariner 2-Stroke Outboards
High-performance CDM Ignition Coil designed to restore reliable spark and smooth engine operation on Mercury & Mariner 2-stroke outboards from 1997 and newer. Built to OEM specification using marine-grade components, offering durability, ignition stability and long service life.
✅ Key Features:
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Direct OEM replacement CDM coil
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Strong, stable ignition output
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Sealed, waterproof and corrosion resistant
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Plug-and-play installation
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Designed for marine use & high temperatures
⚙️ Fitment:
Fits Mercury & Mariner 2-Stroke outboards (1997 & newer)
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30HP to 250HP
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3 Cylinder
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4 Cylinder
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V6 Models
⚠️ Will NOT fit all models within this range – CDM coils vary by engine. Please confirm part numbers before ordering.
🔁 Replaces Mercury / Mariner Part Numbers:
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827509A10
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827509A4
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827509A7
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827509T7
📦 Package Includes:
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1 × CDM Ignition Coil (direct replacement)
⚠️ Buyer Responsibility:
It is the buyer’s responsibility to verify correct part number and fitment before purchase.
If you are unsure which CDM coil your engine requires, contact SSI Marine – we are happy to help confirm compatibility.
💡 Why Choose SSI Marine:
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OEM-equivalent performance
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Tested for marine ignition reliability
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UK Stock – Tracked 24-hour delivery
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Trusted by marine engineers and boat owners
SHIPPING & DELIVERY
Delivery & Returns Policy
Delivery
Standard Delivery
- £6: Royal Mail Tracked 24 Service
- £3.99: Large Letter - Royal Mail 1st Class Post (Untracked)
We offer free delivery on all orders over £150 (excludes outboard engines).
Orders placed before 1:00 PM (Monday-Friday) are usually dispatched the same working day.
Most parcels are delivered within 24 hours, but please allow extra time for courier delays that may occur outside our control.
For outboard engines, please contact us for a delivery quote.
Important: Please ensure your shipping address is correct before completing checkout. SSI Marine is not responsible for parcels sent to an incorrect address provided by the buyer.
Tracking Your Order
Once your order has been dispatched, you will receive a tracking number via email (after 5 PM on the day of dispatch).
Tracking is available only for parcels sent via Royal Mail Tracked 24.
Large Letter orders are sent via Royal Mail 1st Class Post (untracked).
Returns
We accept returns of unused and undamaged items within 30 days of purchase.
Returned items must be in sellable condition and include the original packaging.
Please do not tape, label, or write directly on the product's original box.
Important: Do not return items in their original product boxes only, they must be placed inside a protective outer box or bag. Parcels returned like the example below will be subject to a 20% restocking fee.
Return shipping costs are the customer's responsibility.
Please include your order details and reason for return inside the parcel.
Refunds
Refunds are issued for the item purchase price only (shipping costs are non-refundable).
All refunds will be made using the same payment method as your original order.
Items returned in poor condition or without proper packaging may incur a 20% restocking fee.
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