MSD Super Conductor Spark Plug Wire Set 8.5mm — Black, Low-Resistance with EMI Suppression

MSD 35593 is an 8.5mm Super Conductor spark plug wire set engineered to deliver low-resistance spark delivery and strong EMI suppression for performance and street vehicles.

This black MSD 35593 wire set combines a low-ohm conductor, a heat- and abrasion-resistant jacket, and a ferro-magnetic core to reduce electrical interference while reliably carrying ignition energy to each spark plug. Designed for engines that demand consistent firing and clean electronics, these wires balance conductivity, durability, and noise control without bulky construction.

How does the MSD 35593 improve ignition consistency?

The MSD wires use a high-quality conductor with less than 50 ohms per foot, keeping resistance low so more ignition voltage reaches the spark plug. A tightly wound conductor delivers uniform performance across firing events, reducing misfires caused by weak or delayed sparks.

• Under 50 ohms per foot for minimal voltage loss
• Tightly wound conductor provides uniform spark transmission
• Kevlar-reinforced core increases tensile strength for long-term reliability

What features reduce electromagnetic interference (EMI) with electronics?

The MSD 35593 integrates a ferro-magnetic impregnated core that acts as an EMI choke, suppressing interference that can affect radios, ECU signals, and onboard sensors. Additionally, forty feet of fine conductor are wound into each foot of wire to further damp high-frequency noise.

• Ferro-magnetic core reduces ignition noise
• High conductor winding density for superior EMI suppression
• Helps protect sensitive vehicle electronics from spark-related interference

How does the construction resist heat and mechanical wear?

MSD uses a proprietary outer sleeve compound formulated to withstand elevated under-hood temperatures and abrasion from vibration or contact. Inside, Dupont Kevlar in the conductor core gives the cable added tensile strength so connections stay secure under stress and repeated servicing.

• Durable outer sleeve resists high heat and abrasion
• Kevlar-reinforced conductor core for superior tensile strength
• Designed for long-term durability in harsh engine bays

Will this wire set fit my engine and how is it configured?

The MSD 35593 is an 8.5mm diameter, universal-style Super Conductor set intended for direct replacement on vehicles that accept 8.5mm boots and wires. Confirm boot angles and terminal styles for your application; lengths and terminal compatibility vary by specific vehicle fitment.

• 8.5mm diameter compatible with most standard performance boots
• Sold as a full wire set sized for typical passenger and performance engines
• Verify boot type and length against your engine’s requirements

Who is this for: The MSD 35593 Super Conductor Spark Plug Wire Set is aimed at performance-minded drivers, mechanics, and restorers who need low-resistance ignition wiring with active EMI suppression. It’s a strong choice for street and light-performance engines where reliable spark delivery, electronic noise reduction, and durable materials are priorities—especially when replacing worn stock wires or upgrading to reduce misfires and interference. If your project requires precise fitment, check terminal and boot compatibility against your vehicle before ordering.