Total Price:
Add to CartFor 8 cylinder engines with Thunderbolt ignition systems.
Features:
Lead Lengths:
Replaces:
What is the MerCruiser Thunderbolt V8 Spark Plug Wire Set by Sierra used for?
The MerCruiser Thunderbolt V8 Spark Plug Wire Set by Sierra is designed for 8-cylinder engines with Thunderbolt ignition systems. The set includes spark plug wires and a coil wire, with construction features designed to support durability, engine performance, high-temperature protection, RFI suppression, and conductivity.
What does the Sierra MerCruiser Thunderbolt V8 Spark Plug Wire Set include?
The set includes eight spark plug wires and one coil wire. The spark plug wire lengths are two 30-inch, two 35-inch, two 40-inch, and two 45-inch wires. The included coil wire is 12 inches long.
What features does the Sierra Thunderbolt V8 Spark Plug Wire 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 for electronic systems and includes a coil wire.
How does the Sierra spark plug wire set support engine performance?
The stainless steel wound conductor is designed for engine performance and maximum horsepower, while the corrosion-resistant stainless steel terminals provide conductivity. The Kevlar core is designed for durability and long life, and the set provides RFI suppression for sensitive electronic systems.
What MerCruiser part numbers does this Sierra spark plug wire set replace?
The Sierra set replaces the listed MerCruiser numbers 84-813720A4, 84-816761Q4, 84-816761K4, 84-813720A3, 84-816761Q3, 84-816608Q61, 84-813720A, and 84-816761Q4. It also replaces Redline RL8804 and Mallory 9-28001 and 9-28002.
What should I verify before ordering the MerCruiser Thunderbolt V8 Spark Plug Wire Set?
Verify that your engine is an 8-cylinder engine equipped with a Thunderbolt ignition system. You can also compare the existing spark plug wire set or part number with the listed MerCruiser, Redline, and Mallory replacement numbers before ordering.
California Residents: 
WARNING
Cancer and Reproductive Harm -
P65Warnings.ca.gov
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