This MSD Super Conductor Spark Plug Wire Set is a universal 8.5mm set built for 4-cylinder Midget racing applications. The coil-side terminal and boot arrive pre-crimped, while spark-plug-side boots and terminals are supplied loose so each wire can be routed and crimped to length for the specific chassis. A Mini-Stripper-Crimper tool is included to complete the install.
Specifications:
- Application: Universal 4-Cylinder
- Wire Series: 8.5 Super Conductor
- Wire Diameter: 8.5mm
- Color: Red
- Core: Copper
- Boot Material: Silicone
- Resistance: 40-50 Ohms Per Foot
- Spark Plug Boot Angle: 90°
- Wire Lengths: 2 x 36", 2 x 24"
- Warranty: Manufacturer's Limited 1 Year Warranty
- Part Number: 31689
Distributor cap boots and terminals are included, along with a Mini-Stripper-Crimper tool for cutting and crimping the spark-plug-side ends to length.
FAQ
What vehicles does this wire set fit?
This is a universal set designed for 4-cylinder Midget racing applications; wires are supplied extra-long so they can be cut and crimped to fit the specific chassis.
Do I need to crimp the wires myself?
The coil-side terminal and boot arrive pre-crimped. The spark-plug-side boots and terminals are supplied loose, along with a Mini-Stripper-Crimper tool, so each wire can be routed and crimped to length for the application.
What lengths do the wires come in?
The set includes two 36-inch wires and two 24-inch wires to be trimmed to the exact length needed.
What warranty is included?
This wire set is backed by MSD's Manufacturer's Limited 1 Year Warranty from the original date of purchase.

