Sierra 18-8810-1 MerCruiser Wiring Plug Set

Sierra 18-8810-1 MerCruiser Thunderbolt V6 Spark Plug Wire Set

Sierra replacement spark plug wire set for MerCruiser Stern Drives. For 6 cylinder engines with Thunderbolt ignition systems.

Features:

• Kit includes coil wire.
• Kevlar core for maximum durability and long life.
• Durable stainless steel wound conductor for maximum horsepower and engine performance.
• Premium silicone jacketing and boots for the ultimate in high temperature protection.
• Superior RFI suppression for the most sensitive electronic system.
• Corrosion resistant stainless steel spark plug and distributor terminals for maximum conductivity.
• Cyl.: 6
• Ignition Type: EST Electronic

Lead Lengths:

• 2 Spark Wires 25"
• 2 Spark Wires 30"
• 2 Spark Wires 35"
• 1 Coil Wire 13"

Interchangeable with:

• CDI
• 631-0013
• Mallory
• 9-28016
• 9-28091
• MerCruiser Stern Drive
• 84-813720A11
• 84-816761A16
• 84-816761Q16
• OMC Stern Drive
• 0503751

Frequently Asked Questions

What is the Sierra 18-8810-1 MerCruiser Thunderbolt V6 Spark Plug Wire Set used for?

The Sierra 18-8810-1 is a replacement spark plug wire set for MerCruiser Stern Drives with 6-cylinder engines and Thunderbolt ignition systems. The set uses an EST electronic ignition type and includes six spark plug wires plus a coil wire for the specified application.

How many wires are included in the Sierra 18-8810-1 spark plug wire set?

The Sierra 18-8810-1 includes six spark plug wires and one coil wire. The set contains two 25-inch spark wires, two 30-inch spark wires, two 35-inch spark wires, and one 13-inch coil wire.

What type of ignition system does the Sierra 18-8810-1 fit?

This spark plug wire set is designed for 6-cylinder MerCruiser Stern Drive engines with Thunderbolt ignition systems. The specified ignition type is EST Electronic, so the engine should be verified for this ignition configuration before purchasing.

What features does the Sierra 18-8810-1 spark plug wire set have?

The Sierra 18-8810-1 uses a Kevlar core for durability and long life, stainless steel wound conductors, and silicone jacketing and boots for high-temperature protection. The set also provides RFI suppression and corrosion-resistant stainless steel spark plug and distributor terminals.

What part numbers are interchangeable with the Sierra 18-8810-1?

The Sierra 18-8810-1 is interchangeable with CDI 631-0013; Mallory 9-28016 and 9-28091; MerCruiser Stern Drive 84-813720A11, 84-816761A16, and 84-816761Q16; and OMC Stern Drive 0503751.

What should I verify before purchasing the Sierra 18-8810-1 wire set?

Verify that your engine is a 6-cylinder MerCruiser Stern Drive with a Thunderbolt ignition system and EST electronic ignition. You should also compare your existing wire set or part number with the listed interchangeable numbers and lead lengths to confirm the application.

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