8.5mm x 100 ft. Black Spark Plug Wire Roll

This bulk spark plug wire is sold by the roll at 8.5mm outside diameter and 100 feet in length, giving you the length needed to cut custom ignition wires for your specific cylinder routing. The spiral core construction provides RFI suppression to help reduce electrical interference, with 500 Ohm resistance — confirm this matches your ignition system's requirements, since some high-output or MSD-style systems specify different resistance ranges.

The silicone insulation is rated up to 600°F, supporting routing near warm engine-bay components when installed with proper clearance. This is raw wire only — boots and terminals are not included and are sold separately; pair this roll with a compatible boot and terminal kit (matching the 8.5mm wire diameter) to complete your ignition wire build.

Applications
Universal fit. Commonly used for street performance builds, restoration projects, and custom ignition-system assembly.

Installation
Sold as bulk wire by the roll — cut to length as needed for your specific cylinder routing. Boots and terminals are not included; confirm spark plug terminal style, coil or distributor configuration, and boot compatibility before ordering a matching kit.

COMPATIBLE WITH
UNIVERSAL

NOTES
• Sold as bulk wire by the roll — boots and terminals not included, sold separately
• 500 Ohm resistance — confirm this matches your ignition system's requirements (some high-output or MSD-style systems specify different resistance ranges)
• Cut to length as needed for your specific cylinder routing

COMMON VEHICLE APPLICATIONS
Street performance applications
Restoration projects
Custom ignition-system builds

SPECIFICATIONS
Color: Black
Conductor Material: Spiral core
Insulator Material: Silicone
Length: 100 ft.
Outside Diameter: 8.5 mm
Resistance: 500 Ohms
RFI Suppression: Yes
Universal Or Specific Fit: Universal