Sierra 18-8820-1 8 Cyl EST Spark Plug Wire Set

Sierra 18-8820-1 Spark Plug Wiring Set

Sierra replacement spark plug wire set for 8 cylinder EST Electronic ignition.

Features:

• Ignition Type: EST Electronic
• Cyl.: 8
• 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

Lead Lengths:

• 2 Spark Wires 27"
• 1 Spark Wire 32"
• 2 Spark Wires 38"
• 3 Spark Wires 42"
• 1 Coil Wire 14"

Interchangeable With:

• Mallory
• 9-28029
• OMC Stern Drive
• 503754

Frequently Asked Questions

What is the Sierra 18-8820-1 Spark Plug Wiring Set used for?

The Sierra 18-8820-1 Spark Plug Wiring Set is a replacement spark plug wire set designed for 8-cylinder engines with EST electronic ignition. The set uses durable construction materials and components designed for high-temperature protection, conductivity, and RFI suppression in compatible marine ignition systems.

What ignition system does the Sierra 18-8820-1 Spark Plug Wiring Set fit?

The Sierra 18-8820-1 is specified for EST electronic ignition systems on 8-cylinder engines. The supplied product description does not identify specific engine models or years, so verify that your engine uses an 8-cylinder EST electronic ignition system before ordering.

What wire lengths are included in the Sierra 18-8820-1 Spark Plug Wiring Set?

The set includes two 27-inch spark plug wires, one 32-inch spark plug wire, two 38-inch spark plug wires, three 42-inch spark plug wires, and one 14-inch coil wire. These nine leads provide the specified wire lengths for the listed 8-cylinder EST electronic ignition application.

What materials and features does the Sierra 18-8820-1 Spark Plug Wiring Set have?

The wires feature a Kevlar core, stainless steel wound conductor, premium silicone jacketing and boots, and corrosion-resistant stainless steel spark plug and distributor terminals. The set also provides RFI suppression and high-temperature protection for compatible electronic ignition systems.

Is the Sierra 18-8820-1 Spark Plug Wiring Set interchangeable with OMC parts?

Yes. The Sierra 18-8820-1 is listed as interchangeable with OMC Stern Drive part number 503754. It is also interchangeable with Mallory part number 9-28029. Verify the existing wire set or applicable part number to help confirm compatibility.

What should I verify before purchasing the Sierra 18-8820-1 Spark Plug Wiring Set?

Verify that your engine has 8 cylinders and uses EST electronic ignition. Also compare the applicable existing wire set or part number with the listed interchange references, including OMC 503754 and Mallory 9-28029. The supplied description does not provide specific engine model or year fitment information.

California Residents: WARNING Cancer and Reproductive Harm - P65Warnings.ca.gov