Copper-Core V-Twin Spark Plug Set for Harley-Davidson XL (1979–1985) with Leak-Free Heat Crimping

Copper-core electrodes deliver improved heat transfer and longer service life for Harley-Davidson XL engines. The nickel-plated housing provides corrosion resistance, while a 95% pure alumina insulator enhances electrical insulation and durability. A heat crimping process ensures a leak-free seal, reducing the risk of misfires and maintaining consistent ignition performance.

• Copper core electrode for enhanced heat transfer and durability
• Nickel-plated housing for corrosion resistance
• 95% pure alumina insulator for reliable electrical insulation
• Heat crimping process guarantees a leak-free seal
• Replaces spark plug #4R5, compatible with Harley Davidson XL models from 1979 to 1985
• Engineered to meet or exceed OEM specifications for robust ignition and smooth power delivery

Designed by Volt Tech under the WHITEVTWINLOGO line, this V-Twin performance spark plug set is an upgrade crafted for vintage XL riders seeking reliable starts and steady performance across riding conditions.

V-Twin performance spark plug set features a copper core electrode for a longer service life nickel plated housing 95% pure alumina insulator and a heat crimping process to ensure a leak free seal.

Enhance your Harley Davidson XL engine performance with the Volt Tech WHITEVTWINLOGO V-Twin Performance Spark Plug Set. Designed with a copper core electrode, these spark plugs offer improved heat transfer and longer service life, ensuring reliable ignition and optimal engine efficiency. The nickel-plated housing provides corrosion resistance, while the 95% pure alumina insulator enhances electrical insulation and durability. A specialized heat crimping process guarantees a leak-free seal, reducing the risk of misfires and maintaining consistent engine performance. This set replaces spark plug #4R5, making it a perfect upgrade for vintage Harley Davidson XL models from 1979 to 1985. Each spark plug is engineered to meet or exceed OEM specifications, delivering robust ignition with every start and smooth power delivery across various riding conditions.

Features:

• Copper core electrode for enhanced heat transfer and durability

• Nickel-plated housing for corrosion resistance

• 95% pure alumina insulator for reliable electrical insulation

• Heat crimping process for a leak-free seal

• Replaces spark plug #4R5, compatible with Harley Davidson XL models from 1979 to 1985

Fitment:
Harley Davidson XL 1979
Harley Davidson XL 1980
Harley Davidson XL 1981
Harley Davidson XL 1982
Harley Davidson XL 1983
Harley Davidson XL 1984
Harley Davidson XL 1985