HDCircuitry LLC

HDCircuitry LLC Custom wiring specializing in Ford Lightnings & Harley Trucks. Plug & Play line lock switches, batte

More HDCircuitry LLC big 3 battery cable upgrade kits in the works... Upgrade your positive, negative, alternator, and ...
06/14/2026

More HDCircuitry LLC big 3 battery cable upgrade kits in the works... Upgrade your positive, negative, alternator, and aux grounding cables with this kit that includes all the miscellaneous piece parts you need as well to make a complete kit down to the smallest detail!

www.hdcircuitryllc.com

Hmm do I need to buy another 03 HD to help advertise the new HDCircuitry LLC website? Sounds like a good excuse to buy ...
06/09/2026

Hmm do I need to buy another 03 HD to help advertise the new HDCircuitry LLC website? Sounds like a good excuse to buy another truck to me! Haha Although after two black 03s I think the next should be a shamu. Snag up some kits on www.hdcircuitryllc.com so I have a good reason to find truck number 10!

Finally setup a HDCircuitry LLC website! Order kits, check out install pics and overview videos, and cross some items o...
06/07/2026

Finally setup a HDCircuitry LLC website! Order kits, check out install pics and overview videos, and cross some items off the summer mod list! www.hdcircuitryllc.com

06/01/2026

New website has launched! www.hdcircuitryllc.com All your lightning, harley truck, and 10th Gen f150 wiring harness kits available at the click of a button! Efan harness kits, big 3 battery cable kits, fuel pump harness kits, and starter cable kits, etc.

More big 3 battery cable upgrade kits in the works along with efan harness kits and fuel pump harness kits. Snag one up...
05/28/2026

More big 3 battery cable upgrade kits in the works along with efan harness kits and fuel pump harness kits. Snag one up for your lightning or Harley truck summer mod upgrades!


www.hdcircuitryllc.com

Attention to detail from start to finish... Every kit is built with obsessive attention to detail whether it's a Raptor...
05/27/2026

Attention to detail from start to finish... Every kit is built with obsessive attention to detail whether it's a Raptor efan harness kit, fuel pump harness kit, big 3 battery cable upgrade kit, or starter kit. Theres no better option for upgraded harness kits in your 2nd Gen Lightning, Harley Truck, or 10th Gen f150!

www.hdcircuitryllc.com

Honor the fallen this Memorial Day 🇺🇸 Whether you're BBQ'ing, racing, wrenching, or wiring, don't forget what the day is...
05/25/2026

Honor the fallen this Memorial Day 🇺🇸 Whether you're BBQ'ing, racing, wrenching, or wiring, don't forget what the day is about. Thank you to all who served and sacrificed for our freedom.



www.hdcircuitryllc.com

More wiring harness kits in the works... Lightning and harley truck efan harness kits & fuel pump harness kits, with mo...
05/20/2026

More wiring harness kits in the works... Lightning and harley truck efan harness kits & fuel pump harness kits, with more big 3 battery cable kits & starter cable kits up next!

05/17/2026

The wall of "shame"... Broken belts, melted valves, lifted head gaskets, snapped cranks, spit freeze plugs, blown fuses, torn gaskets, clogged filters, torched valves, but behind it all not only records that rattled the Lightning and Harley truck world over the years, but countless priceless memories with friends and families trackside, garage wrenching, cannonball runs for parts and trucks, etc. The clean passes were great, but the hurtles encountered and overcome made the journey all that much more memorable and really showed who was there to lend a hand and keep going back out there to lay down some numbers!

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Manahawkin, NJ
08050

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