Battery box open showing 12V batteries cabled together

Truck Modifications

Owner-Operator Truck Modifications — Russellville KY

In short

Owner-operators have specific needs that fleets don't, and we get it. We do functional truck modifications: auxiliary lighting, work-light mounts, accessory power, cab-comfort upgrades, custom storage brackets, secondary alternator installs for high-electrical-load setups. We won't tune your ECU into emissions violation territory. Everything else functional is on the table.

Call (931) 561-7736

Based in Russellville, KY · 75-mile radius

What we cover

  • Auxiliary LED lighting (work lights, headlights, fog, side)
  • Accessory power distribution and fuse panels
  • Secondary alternators and high-output charging upgrades
  • Cab-comfort upgrades: inverters, refrigerator mounts, sleeper-bunk wiring
  • Custom mount fabrication for tools, equipment, antennas
  • Air-line and electrical-circuit additions for accessories
  • Backup cameras, dash cams, telematics installs
  • Reefer pre-trip cabin shore-power setups

How we handle it

Owner-spec work starts with a conversation. We want to know how you actually use the truck — long-haul, regional, vocational, what equipment you carry, what's been broken or jury-rigged. From there we spec the parts and the install, give you a firm number, and do the work at your shop or yours. Wiring is done with proper gauges, fused per spec, and labeled. Lights are mounted where they're useful, not where they look cool but blind oncoming traffic. We treat your truck like you'd treat it.

Parts & warranty

Brand-agnostic. Rigid, Baja Designs, KC HiLites, JW Speaker, Optronics, ARB — we'll spec what fits the job and your budget. Our 1-year warranty applies to the install (the wiring, the mount, the workmanship). Light bars and accessories carry whatever manufacturer warranty came with them.

Related repairs

Other services

Need truck modifications? Call Brennan.

On-site diesel and semi truck repair across the I-65 / I-24 corridor. 24/7 dispatch — the owner answers.

Call (931) 561-7736

Real work, real shop

  • Bank of four 12V batteries installed in a battery box
  • DEF fill door open at the side of a heavy-duty truck
  • Turbocharger and exhaust components during engine work

Frequently asked

Can you tune my ECU for more power?
Yes. We do ECU calibration and performance tuning on heavy-duty diesel platforms — Cummins, Detroit, Paccar, Mack, Cat. Scope and approach depend on the engine, the intended duty cycle, and whether the truck runs on-highway or off-road. We talk through what you actually want from the truck before we plug in.
How much does a full auxiliary lighting setup cost?
Wide range. A pair of decent work lights mounted to existing brackets with proper wiring is maybe $400–$700 in our radius. A full setup with headlights, fogs, bar, side lights, and a fused distribution panel can be $2,500+. We give you firm numbers.
Do you install dash cams and telematics?
Yes. Trim removal, harness routing, proper power tap, and a clean install. We don't run dangling cables down the A-pillar.
Can you do paint and body work?
No. We don't do paint or body repair. We can patch a fuel tank, fab a bracket, weld a mount — but cosmetic body work goes to a body shop.

What customers say

4.7 / 5 from 43 Google reviews

  • “Brennan was great — absolutely hire this guy. I own a local tree company in Goodlettsville and one of my work trucks broke down at short notice. He was able to get there within a day or two and diagnose it. My turbo went out on one of my vehicles — when I went to the dealership they told me the wait time was forever and the process would include taking the cab off, which wouldn't work well with my current setup. Within one day he was able to replace my turbo and get it running so I could get back in business. The job was really labor-intensive but he made quick work of it and it runs even better than it did before. He's now the main guy I go to.”

    — Tyler M.

  • “We've used Blacktop Mobile Repair twice this month, and both experiences have been nothing short of amazing. They run a top-notch operation, and it really shows in the quality of service and professionalism they provide. Jacob, the service tech, went above and beyond to make sure our truck was taken care of. He even drove out of his way to make sure he had the exact part needed to fix the truck and get us back on the road quickly. That level of dedication and commitment is hard to find. As a trucking company, downtime is costly, and having a team like Brennan and Jacob we can rely on makes all the difference.”

    — Matthew P.

  • “I've used these guys in the past for an air compressor installation. Jacob was great. And recently my alternator quit on the weekend. I called Jacob on a Saturday and he helped me find one that I could pick up myself. Both times Jacob was knowledgeable & fair. A few months later — again on a Saturday — I wasn't even in their area and I called again to get troubleshooting advice. They are very good at diagnosing. Was able to pinpoint the trouble. Thanks again guys!”

    — Dennis W.

Read all 43 reviews on Google

Call (931) 561-7736