Mobile heavy-duty diesel mechanic in Vancouver, WA
24/7 mobile mechanic service on the I-5 corridor, plus a shop by appointment. Cummins, Detroit, PACCAR, International. We come to you with the parts and diagnostics to solve most jobs in the field.
30–45 min response in the Vancouver area.
24/7 dispatch. Average answer time 15–20 seconds.
ETA and pricing in 2 minutes.
Pick what's wrong. We'll call right back.
What it actually costs to call wrong
The wrong roadside call at 2 AM on I-5 costs four figures by sunrise. Five by Friday.
Most fleet ops leads have run into one of these. The reason Vancouver fleets put us on speed dial is the alternative.
A tow shows up first
Out here, the next heavy-duty wrecker might come from Redding (60+ mi) or Medford (60+ mi). Tow rate + after-hours + admin + storage. The truck ends up at a shop that's closed until Monday.
A mom-and-pop mechanic gets the dispatch
Doesn't have a current Cummins ECM tool. Can't pull live data. Tells your driver to "come back tomorrow when we figure out a part."
Dealer service department: drive 60 miles, wait 9 days
The nearest Cummins or Detroit dealer service is 60+ miles either direction. Your truck sits in their yard until the next bay opens.
Driver pushes through over the summit
Hopes to make Medford or Redding. Brake fade or cooling failure on the grade. Hilt or Anderson scale flags the truck and goes OOS on the spot.
We built Fleet Nation in Vancouver to be the call you make first, not the one you make after the first three went sideways.
What we handle in Vancouver
Mobile mechanic first, shop second. Most jobs solved roadside on the first visit.
Mobile heavy-duty mechanic
On-site diesel repair from a stocked service truck. Most jobs solved on the first visit.
- Engine diagnostics: Cummins ISX/X15, Detroit DD15/DD13, PACCAR MX, International A26
- Fuel system: CP4 pumps, injectors, lift pumps, fuel filter housings
- Air & brakes: compressors, governors, dryers, slack adjusters, wheel seals
- Cooling: radiators, water pumps, thermostats, hose replacement, EGR coolers
- Electrical: starters, alternators, batteries, harness diagnostics, trailer wiring
- After-treatment: DPF cleaning, DEF system, NOx sensors, regen forcing
How we work
Fix your truck roadside.
When your truck breaks down, you don't want it towed. You want it running. Our service vehicle rolls to you with the tools, parts, and diagnostic gear to handle most heavy-duty diesel work in the field: brakes, cooling, air system, electrical, fuel system, after-treatment.
That's the play. The tow is the fallback.

Walk-away list
8 red flags when you call a roadside shop at 2 AM.
If the shop on the other end of the line does any of these, hang up. Most over-billing in this industry comes from the same handful of patterns.
Won't quote on the phone
"We'll figure it out when we get there." Translation: they'll add charges once you're committed.
No master tech on call after 6 PM
"Junior guy is on tonight, master comes in Monday." Your truck is broken now, not Monday.
Tow first, diagnose later
If the shop you're calling runs both a wrecker line and a mechanic side, ask how they price a tow that could have been a roadside fix. The honest answer is the one we use: eat the tow margin, bill the repair we actually did.
After-hours surcharge appears on the invoice
Wasn't mentioned on the call. Should have been. This is the most common over-billing pattern in roadside.
No DOT-trained tech on staff
Roadside DOT-issue repairs need someone who can sign off the work. Otherwise you're paying twice.
Won't bill insurance directly
"Pay us today, file with your carrier later." Legitimate shops bill insurance direct on accident calls.
Goes silent after the dispatch call
A serious dispatcher keeps you and your ops team updated en route. Not "we'll get there when we get there" and a check-in only when the bill arrives.
No certifications listed publicly
Brand-specific diagnostic tools, master tech credentials, DOT training. If a shop holds them, they post them. If they don't, ask why.
Other Fleet Nation locations
Service hubs nearest to Vancouver, WA.
What Vancouver-area fleets ask before they call
Pricing, response times, what we carry, billing terms, how a service hub handles complex jobs. The questions a dispatcher asks before they put us on the rotation.
Need help in Vancouver right now?
Live dispatcher answers in 15 to 20 seconds. Truck rolls right after. ETA and pricing on the call, before you commit.
24/7 dispatch. Holidays and weekends included. Live human, not a callback queue.