8MM StreeThunder Spark Plug Wires (Kit) for Harley Davidson®

100% Made in U.S.A. Spark Plug Wires a Working Man can Afford!

StreeThunder 8mm Motorcycle Spark Plug Wire Sets


  • This, extremely durable 8mm spark plug wire made of Black Silicone and Synthetic Jacketing resists heat, oil, and abrasion.
  • Furthermore, 500 ohm per foot resistance delivers greater spark energy, while improving power, idle, and fuel efficiency.
  • Likewise, StreeThunder plug wires feature Kevlar Helically Spiral Wound Core conductor, which results in greater strength and durability that suppresses Electro Magnetic (EMI) and Radio Frequency Interference (RFI).

Sumax and Taylor Cable developed the STREETHUNDER Wire to deliver great performance at an extremely affordable price that features a low resistance conductor.


  • Another great treat is the matching black silicone boot which protects your spark plug wires against high exhaust temperatures.
  • The conductor is wrapped in durable silicone, double layer jacketing for exceptional heat protection, strength as well as durability.
  • Above all, Double Spring Locking Terminals allow for secure, vibration proof connections.


8MM StreeThunder Spark Plug Wires fit Harley Davidson® Dyna FX, Dyna FXR, Softail, Sportster and Touring Bikes.

Availability: Usually ships the next business day

100% Made in USA

Sumax Cycle Products, your source of best aftermarket spark plug wires for motorcycles, we sell quality, durability, and reliable products. If your spark plug wires or battery cables ever break down, simply return them to us. We will replace them at no charge. We stand by our products for a lifetime.

As of August 31, 2018, we are Prop 65 compliant. https://www.p65warnings.ca.gov/

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