6 HP 8 HP 9.9 HP 10 HP 15 HP 20 HP 25 HP Mercury Mariner Outboard 2 Stroke CDI Switch Box 339-7452A19
PRODUCT DETAILS
Mercury / Mariner CDI Switch Box, Bullet Connection
Marine-grade aftermarket CDI power pack / switch box for selected 2-stroke, 2-cylinder Mercury and Mariner outboards.
Fits selected applications
- 6 HP, 8 HP, 9.9 HP, 10 HP, 15 HP, 20 HP and 25 HP
- Selected 10 Magnum, 10 Marathon, 10 Sea Pro, 15 Marathon, Sea Pro, Super 15, 20 Jet, 25 Marathon and 25 Sea Pro models
- Approximate application period: 1980–1997, depending on serial number and specification
Replaces selected part numbers
339-7452A switch-box family, including 339-7452A1, A3, A7, A8, A9, A10, A11, A14, A15, A18, A19, A20 and A21. Cross references include CDI Electronics 114-7452K1 and Sierra 18-5777 / 18-5778.
Check compatibility before ordering
This unit uses bullet-wire connections. It is not suitable for engines using nut, stud or bolted connections. Please check your original switch box, complete engine serial number, cylinder count and part number. Do not rely on horsepower, year or appearance alone.
Symptoms such as no spark, misfiring or difficult starting can have other causes, including the stator, trigger, coils, wiring or stop circuit. Proper diagnosis is recommended before replacement.
Aftermarket replacement part, not a genuine Mercury, Mariner or Quicksilver component. OEM names and part numbers are for identification only. If unsure, send SSI Marine your horsepower, serial number and a clear photo of the existing CDI and connections.
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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