High performance automotive wiring kits specializing in the 1999-2004 Ford SVT 2nd Gen Lightning, 2000-2003 Ford Harley F-150 Truck, and 1997-2003 (& 2004 Heritage) 10th Gen Ford F-150 (& corresponding Expedition).
HDCircuitry kits prioritize a super clean plug-and-play install, robust reliability, and only using top notch quality components.
Shop by collection
Battery & Starter Cable Kits
Battery & Starter Cable Kits
Electric Fan (E-fan) Harness Kits
Electric Fan (E-fan) Harness Kits
Fuel Pump Harness Kits
Fuel Pump Harness Kits
Other Wiring Harness Kits
Other Wiring Harness Kits
HDCircuitry Product Lineup
A brief overview of all the various wiring products I offer. Specifically tailored to Gen 2 Ford Lightnings and Harley trucks, but also works on nearly all 10th Gen 97-03/04 F-150s, 1st Gen expeditions, and even many other applications from fox bodies to coyote swapped Broncos. Battery cable kits, fuel pump harness kits, linelock switch kits, electric fan kits, the most obsessive and detailed wiring products you'll find for your Lightning or Harley truck!