PRODUCT DETAILS
Spark Plug HT Lead (9") for Mercury 150HP / 175HP / 200HP Outboards | Replaces 84-813715A1 and More
This 9" high-tension spark plug wire is a direct-fit, marine-grade aftermarket replacement for a wide range of Mercury 2-stroke outboards from 150 to 200 horsepower. Designed to maintain strong, consistent spark delivery from the ignition coil to the spark plug under demanding marine conditions.
Fits Mercury Outboards:
• 150HP
• 175HP
• 200HP
(Replaces original wires on V6 2-stroke models — please verify your part number or consult us to confirm compatibility.)
Replaces Mercury Part Numbers:
84-813715A1, 20114A2, 20122A2, 23564A4, 23564A5, 23564A6, 23564A8, 23564A9, 26453A1, 26460A1, 47899A9, 63212A2, 697331, 70668, 718, 73451A8, 762238, 90816A25, 93475A25, 99215A25, 99215A29
Product Features:
• 9-inch spark plug HT lead
• High-quality aftermarket construction
• Ensures consistent ignition performance
• Marine-grade wire and boot materials
• Resists corrosion, vibration, and heat
• Fast and easy installation
⚠️ This part may look similar to others but vary in length or connector type — please double check before ordering. If unsure, contact SSI Marine and we’ll confirm fitment based on your engine details.
Why Buy from SSI Marine?
• UK-based stock with fast dispatch
• Same-day shipping before 1PM
• Collection available from Leigh, Manchester
• VAT receipts available
• Expert marine support for any questions
Reliable ignition starts with the right parts — trust SSI Marine for your Mercury outboard.
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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