MSD 8.5mm Super Conductor Spark Plug Wire Set - 31949

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  • MSD | Part Number: MSD31949
  • RFI Suppression:Includes RFI Suppression
  • Fitment:Universal Fit
  • Type:Direct Fit
  • Diameter:8.50 mm


The MSD 8.5mm Super Conductor is the ultimate performance wire! Its extremely low-resistance combined with the ability to suppress Electro Magnetic Interference is a combination that defies the common laws of physics.

Less resistance means more energy is going to make it to the spark plug to ignite the air/fuel mixture. The Super Conductor uses a copper alloy conductor resulting in less than 50 ohms per foot of wire! This ensures that the most energy possible makes it to the spark plug. By helically winding the conductor around a special core, we are able to produce a highly effective choke to keep the EMI inside the wire and away from other electronics.

This combination is encased in a heavy duty sleeve that will withstand abrasion and high temperatures. Cap off each end with their Dual Crimp Terminals and you have the best wire available!

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Question & Answers

2 Answered questions

Q: Will this fit on a 1990 nissan d21, since its universal? Answer this question

A: It fits 79-92 Toyota trucks

Answered by Kelly from 4WP Corporate Headquarters on 07/06/2021

Q: Will these work on my 1997 3.4 tacoma Answer this question

A: These fit Toyota Trucks, 79-92

Answered by Kelly from 4WP Corporate Headquarters on 04/20/2021