MSD Super Conductor 8.5mm Spark Plug Wire By The Foot Black or Red
When you build a custom spark plug wire set, the wire itself determines whether your ignition system performs. MSD Super Conductor wire delivers maximum spark energy to the plug while blocking the radio frequency interference that ordinary wires radiate into sensitive engine electronics – the combination that makes it the most popular performance spark plug wire ever made.
Key Features
- Available in black or red for visual coordination with your engine build or color scheme
- Sold by the linear foot – order exactly the length you need for each wire in a custom set
- Helically wound copper alloy spiral core provides low resistance without sacrificing RFI suppression
- Silicone and synthetic blend outer jacket resists high heat, abrasion, and tears
Technical Specifications
- Wire Diameter: 8.5mm
- Core Type: Helically wound copper alloy spiral
- Resistance: 40-50 ohms per foot
- RFI Suppression: Equivalent to a 1,500 ohm wire
- Jacket Material: Silicone and synthetic blend
- Available Colors: Black (34043), Red (34049)
- Sold: By the linear foot
Fitment Notes
- Universal application – compatible with any custom or production motorcycle ignition system using 8.5mm wire terminals and boots
- Requires MSD crimp terminals and boots to complete – use 3301 or 3311 for spark plug ends and 3321 or 3322 for coil or distributor ends
- Use the MSD 3503 mini stripper crimper to strip and terminate the wire ends correctly
- Sold as raw wire only – boots, terminals, and crimping tools are sold separately








Kevin Bailey –
It’s MSD. What more can be said
rick –
Great Quality and works perfectly
James h. –
Perfect and great quality
Chris S. –
Great product and it works as intended.