Hardcore Harness Co.

Severe-Duty Spark Plug Wire Sets - Handmade in the USA With Military/Aerospace Components & Methods

Premium Made-To-Order Ignition Wiring Solutions

Premium Spark Plug Wire Sets — Built for Enthusiasts, Built for Life

Featured products

V8 Ignition Wires - "IndestructaWires" - Shielded, Fiberglass Braid (1200 °F)

V8 Ignition Wires - "IndestructaWires" - Shielded, Fiberglass Braid (1200 °F)

Regular price From $429.99 USD

Regular price Sale price From $429.99 USD
V8 Ignition Wires - "IndestructaWires" - Shielded, Silicone-Coated

V8 Ignition Wires - "IndestructaWires" - Shielded, Silicone-Coated

Regular price From $429.99 USD

Regular price Sale price From $429.99 USD
V8 Ignition Wires - "IndestructaWires" - Standard, Fiberglass Braid (1200 °F)

V8 Ignition Wires - "IndestructaWires" - Standard, Fiberglass Braid (1200 °F)

Regular price From $299.99 USD

Regular price Sale price From $299.99 USD
V8 Ignition Wires - "IndestructaWires" - Standard, Silicone-Coated

V8 Ignition Wires - "IndestructaWires" - Standard, Silicone-Coated

Regular price From $289.99 USD

Regular price Sale price From $289.99 USD