RV & Agricultural Diesel in Great Falls, Montana
Most garages in Great Falls will not touch a 40-foot diesel pusher or a combine with a hydrostatic problem — the ones listed here will. These Great Falls and greater Montana shops service RV chassis engines and generators, farm tractors and harvest equipment, irrigation pumps, and the off-road diesels that never see a highway. Several run service trucks that come to the campground or the field, which matters when the machine cannot come to them.
9RV & Agricultural Diesel Shops
3Open 24 Hours
4.5Average Rating
0Premium Shops
All RV & Agricultural Diesel Shops in Great Falls
Mobile Truck & Trailer Repair
Great Falls, MT
24/7
(406) 866-0113
MARS of Great Falls
Great Falls, MT
(406) 231-6766
Broken Nickle Garage LLC.
Great Falls, MT
(406) 468-5715
406 Fleet Maintenance
Great Falls, MT
24/7
(406) 438-5767
Rocky Mountain Truck Service
Great Falls, MT
(406) 452-8561
Tractor & Equipment Co
Great Falls, MT
(406) 761-7900
Dooley's Diabolical Diesel
Great Falls, MT
(406) 781-0978
Fleet Truck and RV Repair
Great Falls, MT
24/7
(406) 720-8847
I-State Truck Centers
Great Falls, MT
(406) 454-1311
RV & Agricultural Diesel FAQ — Great Falls, Montana
Where do I take a diesel motorhome for engine work near Great Falls — the RV dealer or a diesel shop?
For the chassis engine, transmission, brakes, and generator, a diesel truck shop is usually the better and cheaper choice — the engine is a Cummins, Cat, or Freightliner unit they see every day. The RV dealer is for house systems, slides, and coach electrical. Confirm the Great Falls shop has a bay tall enough and a lot long enough before you drive over.
Will a mechanic come out to the farm for a tractor that will not start?
Many of the ag-focused shops around Great Falls run field service trucks and would rather drive to your Montana farm than have you trailer a tractor in. Give them the make, model, and hours, describe the symptom, and mention if it is a hard-start in cold weather versus a no-crank — the first is often glow plugs or fuel gelling, the second is usually electrical.
What is fuel gelling and how do I keep it from stranding my equipment in winter?
Below roughly 15°F, untreated diesel forms wax crystals that clog filters and stall the engine. Use a winter blend or an anti-gel additive before the cold hits, keep tanks full to limit condensation, and change fuel filters going into the season. If it already gelled, a Great Falls shop can warm the fuel system, swap filters, and get you running — do not try to thaw lines with an open flame.
How much does an RV generator or Onan service cost, and how often is it needed?
Small diesel gensets want oil, filters, and a load run at least once a year or every 150 hours or so, and they die young when left to sit. Service is generally billed as a flat job plus parts. Surging, hunting, or shutting down under load points to fuel delivery or a clogged air filter — bring the fault code from the panel to your Great Falls shop.
Are seasonal ag repairs hard to schedule around Great Falls during planting and harvest?
Yes — shops that serve Montana growers are slammed in the spring and fall, and the ones listed here will tell you their busy windows honestly. Book preventive work in the off-season, keep spare filters and belts on hand, and ask whether the shop offers priority response for in-season breakdowns.