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.

Spark Plug 9" Wire, HT LEAD for Mercury 150-175-200 HP, 84-813715A1