Dunnellon is a small city with an outsized share of truck traffic. Its population was 1,928 at the 2020 census, yet US 41, its main street, carries about 21,500 vehicles a day nearby, and FDOT’s 2025 inventory counted 30.2% of them, roughly 6,493, as trucks. US 41 runs 24 miles north to Williston and 18 miles south to Inverness, and CR 40, CR 336 and CR 484 all meet it in town. Add a rail terminal and an airport industrial park, and this small city has more freight infrastructure than its population would suggest. When one of them stops, RDI Power’s mobile technicians drive up from our Brooksville shop to diagnose it and repair it where it sits whenever the job allows.
Where CR 40, CR 336 and CR 484 meet US 41 in Dunnellon
Most stopped trucks in Dunnellon are on US 41 or one of the county roads that feed it. Those intersections are the easiest way to describe where you are:
- US 41. The north and south route through town. Give the nearest cross road or business and your direction.
- CR 484. The main road east across southern Marion County toward Marion Oaks and Summerfield, and the road past the airport.
- CR 40. It meets US 41 in the city.
- CR 336. Another county road that converges on US 41 in town.
With trucks making up close to a third of US 41 traffic, a breakdown here often has heavy vehicles passing close by. Get the truck as far off the pavement as you safely can, put out triangles and wait away from the road. On the county roads, shoulders can be narrow and soft, so a church lot, a business lot or a wide pull-off in town is worth reaching if the truck will still move. Tell us which one you found.
Rail freight and trucks at the Dunnellon terminal
The short line Florida Northern Railroad operates a Dunnellon Terminal that offers transloading and car storage. Transloading is the step where freight moves between rail cars and trucks, so a terminal like this is a place where trucks load, wait and pull out with heavy loads. Florida Northern’s line from Newberry to Red Level also runs through Dunnellon on its way to the Crystal River Energy Complex.
If your truck stops at or near a terminal or industrial yard, the technician can usually work on it there, as long as the site permits it and there is room around the truck. Tell us about gate access, check-in rules and where the truck is parked.
CR 484 and the Marion County Airport industrial park in Dunnellon
Dunnellon/Marion County Airport sits just outside the city along CR 484, on 792 acres with 2 lighted runways of 5,000 and 4,702 feet. Marion County describes the property as about 800 acres split between the airport and an industrial park. Trucks parked at a business in that park are in a good position for on-site work: paved ground, no passing traffic and space for the service truck alongside.
Roadside fixes on US 41 at Dunnellon
Rural highway miles and heavy loads produce a familiar set of failures, and many are repairable on the spot:
- Air leaks at lines, fittings and glad hands, and failed brake chambers
- Batteries, cable ends, starters and alternators
- Coolant hoses, belts and reachable leaks
- Sensor, wiring and DEF faults that put a loaded truck into derate
- Clogged fuel filters and water in the fuel
- Trailer lighting circuits and plugs
The technician scans the truck, reads live data and tests the suspect part before replacing it. When the job is finished, a digital inspection with photos and notes goes to whoever is paying for the repair. Labor on site carries the 3-year, 36,000-mile warranty that applies to shop work.
Dunnellon jobs that go to the Brooksville shop
Engine internals, a failed transmission and repairs that need a lift go to our shop in Brooksville. When that is the call, the technician explains the failure and we plan the tow and the bay time with you, so the truck arrives with a diagnosis and parts already lined up.
Calling about a diesel stopped in Dunnellon
Call (352) 433-3800 during weekday hours, 7:00 AM to 4:00 PM. Trucks on an RDI Fleet account can also get roadside assistance at night and on weekends. We tell you straight when a technician can be there, without a promised arrival time.
Operators who run trucks out of Dunnellon can plan their maintenance through Dunnellon fleet maintenance. Just 3 miles south on US 41, our Citrus Springs mobile diesel repair page covers the Citrus County side, and mobile diesel repair explains the program as a whole.