MSD 32823 Super Conductor 8.5mm Spark Plug Wire Set - GM Truck & SUV - Black

The MSD 32823 Super Conductor 8.5mm Spark Plug Wire Set is a vehicle-specific, bolt-on performance ignition upgrade engineered for 1999–2013 GM Trucks and SUVs equipped with 4.8L, 5.3L, 6.0L, and 8.1L LS-series engines. Each wire in the set is precision pre-cut to exact OEM specifications and features straight plug boots with a socket-style coil connection for a clean, direct-fit installation.

Superior Conductivity & EMI Suppression:

MSD's 8.5mm Super Conductor wire delivers an exceptional combination of ultra-low resistance and effective electromagnetic interference (EMI) suppression. The copper alloy spiral core is wound so tightly around a ferro-magnetic impregnated center core that a single foot of finished wire contains over 40 feet of conductor — resulting in just 40–50 ohms of resistance per foot. This is the lowest resistance of any helically wound wire, ensuring maximum spark energy reaches the plug. Simultaneously, the ferro-magnetic center core creates an EMI "choke" that contains interference inside the wire, protecting sensitive onboard electronics.

Dual Crimp Terminals & Durable Outer Sleeve:

Each wire end is finished with MSD's proprietary Dual Crimp terminals, which feature two independent crimps — one securing the outer sleeve and a second dedicated crimp gripping the conductor itself — for a reliable, low-resistance connection that won't loosen over time. The outer jacket is constructed from a proprietary blend of silicone and synthetic materials, providing outstanding resistance to high heat, abrasion, and tears in demanding underhood environments.

Key Features:

• 8.5mm diameter Super Conductor wire with spiral copper alloy core
• Ultra-low resistance: 40–50 ohms per foot — lowest of any helically wound wire
• Ferro-magnetic impregnated center core for effective EMI suppression
• Pre-cut wire lengths from 8 to 11 inches to OEM specifications
• Straight plug boots with socket-style coil connectors for direct fit
• Dual Crimp terminals — individual crimps for sleeve and conductor
• High-heat, abrasion-resistant silicone/synthetic outer sleeve
• Black jacket finish
• Custom fit for 1999–2013 GM Truck & SUV LS-series engines (4.8L / 5.3L / 6.0L / 8.1L)
• Sold as a complete set

The MSD 32823 is covered by MSD's one-year warranty against defects in material and workmanship when properly installed and purchased through an authorized MSD dealer.