MSD Ignition Spark Plug Wire Set (MPN: 31373)

High-performance spark plug wire set with low resistance and EMI suppression.

The MSD Ignition Spark Plug Wire Set features an 8.5 millimeter diameter and is designed for high-performance applications. This pre-assembled wire set utilizes a copper alloy conductor with a resistance of less than 50 Ohms per foot, ensuring maximum energy transfer to the spark plug for optimal ignition of the air/fuel mixture. The helix-wound design incorporates a ferro-magnetic impregnated center core that effectively suppresses electromagnetic interference, enhancing overall engine performance.

Constructed from silicone and synthetic materials, the wire set is encased in a durable outer sleeve that provides resistance to high temperatures and abrasion. Each wire is equipped with straight spark plug boots and 90-degree distributor boots featuring socket-style terminals, ensuring a secure and reliable connection. The use of DuPont Kevlar material in the conductor core increases tensile strength, making this wire set robust and long-lasting.

With a total of eight wires included, this spark plug wire set is engineered to meet the demands of high-performance engines. The combination of low resistance, effective EMI suppression, and durable construction makes the MSD Ignition Spark Plug Wire Set a critical component for enhancing ignition efficiency and engine reliability.

Features

• Copper Alloy Conductor Has A Resistance Value Of Less Than 50 Ohm Per Foot For Superior Spark
• Ferro Magnetic Impregnated Core Creates An Effective EMI Choke
• Forty Feet Of Conductor Is Wound Into A Single Foot Of Wire For High EMI Suppression
• Conductor Core Features DuPont Kevlar Material For Increased Tensile Strength
• Durable Outer Sleeve Is A Proprietary Compound For Resistance To High Heat Or Abrasion

Specifications

• Manufacturer: MSD Ignition
• Manufacturer Part Number: 31373
• Assembled: Yes
• Diameter (MM): 8.5 Millimeter
• Wire Material: Silicone and Synthetic
• Color: Black
• Number Of Wires: 8
• Distributor Boot Color: Gray
• Distributor Terminal Ends: Socket
• Spark Plug Boot Color: Gray
• Spark Plug Boot Ends: Straight
• Distributor Boot Material: Silicone and Synthetic
• Spark Plug Boot Material: Silicone and Synthetic
• Conductor Type: Copper Alloy With Ferro Magnetic Impregnated Center Core
• Wire Resistance: 40 To 50 Ohms Per Foot Resistance
• Includes Coil Wire: Yes
• RFI Suppression: Yes

Compatibility / Fit

• 1969-1974 Chevrolet Bel Air
• 1969-1972 Chevrolet Biscayne
• 1973-1974 Chevrolet Blazer
• 1969-1972 Chevrolet Brookwood
• 1969-1969 Chevrolet C10 Pickup
• 1973-1974 Chevrolet C10 Pickup
• 1969-1969 Chevrolet C10 Suburban
• 1973-1974 Chevrolet C10 Suburban
• 1969-1969 Chevrolet C20 Pickup
• 1973-1974 Chevrolet C20 Pickup
• 1969-1969 Chevrolet C20 Suburban
• 1973-1974 Chevrolet C20 Suburban
• 1969-1969 Chevrolet C30 Pickup
• 1973-1974 Chevrolet C30 Pickup
• 1969-1969 Chevrolet Camaro
• 1969-1974 Chevrolet Caprice
• 1969-1973 Chevrolet Chevelle
• 1969-1974 Chevrolet Corvette
• 1969-1974 Chevrolet El Camino
• 1969-1970 Chevrolet Estate
• 1973-1974 Chevrolet G10 Van
• 1973-1974 Chevrolet G20 Van
• 1973-1974 Chevrolet G30 Van
• 1969-1974 Chevrolet Impala
• 1969-1969 Chevrolet K10 Pickup
• 1973-1974 Chevrolet K10 Pickup
• 1969-1969 Chevrolet K10 Suburban
• 1973-1974 Chevrolet K10 Suburban
• 1969-1969 Chevrolet K20 Pickup
• 1973-1974 Chevrolet K20 Pickup
• 1969-1969 Chevrolet K20 Suburban
• 1973-1974 Chevrolet K20 Suburban
• 1969-1969 Chevrolet K30 Pickup
• 1973-1974 Chevrolet K30 Pickup
• 1969-1972 Chevrolet Kingswood
• 1973-1974 Chevrolet Laguna
• 1973-1974 Chevrolet Malibu
• 1970-1974 Chevrolet Monte Carlo
• 1969-1971 Chevrolet Nova
• 1973-1973 Chevrolet P10 Van
• 1970-1971 Chevrolet P20 Van
• 1973-1973 Chevrolet P20 Van
• 1970-1971 Chevrolet P30 Van
• 1973-1974 Chevrolet P30 Van
• 1969-1972 Chevrolet Townsman
• 1969-1969 GMC C15/C1500 Pickup
• 1973-1974 GMC C15/C1500 Pickup
• 1969-1969 GMC C15/C1500 Suburban
• 1973-1974 GMC C15/C1500 Suburban
• 1969-1969 GMC C25/C2500 Pickup
• 1973-1974 GMC C25/C2500 Pickup
• 1969-1969 GMC C25/C2500 Suburban
• 1973-1974 GMC C25/C2500 Suburban
• 1969-1969 GMC C35/C3500 Pickup
• 1973-1974 GMC C35/C3500 Pickup
• 1973-1974 GMC G35/G3500 Van
• 1973-1974 GMC Jimmy
• 1969-1969 GMC K15/K1500 Pickup
• 1973-1974 GMC K15/K1500 Pickup
• 1969-1969 GMC K15/K1500 Suburban
• 1973-1974 GMC K15/K1500 Suburban
• 1969-1969 GMC K25/K2500 Pickup
• 1973-1974 GMC K25/K2500 Pickup
• 1969-1969 GMC K25/K2500 Suburban
• 1973-1974 GMC K25/K2500 Suburban
• 1969-1969 GMC K35/K3500 Pickup
• 1973-1974 GMC K35/K3500 Pickup
• 1970-1971 GMC P25/P2500 Van
• 1970-1971 GMC P35/P3500 Van
• 1973-1974 GMC P35/P3500 Van
• 1971-1974 GMC Sprint

Technical Documents

• msd_brand_warranties.pdf

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