Heavy-duty work,
done where it sits.
Gunnells Services is a family-run diesel shop on wheels. We keep commercial rigs running, fleets on schedule, and performance builds dialed in — without dragging the truck across town.
Three lanes. One crew.
Commercial Diesel
Class 7–8 truck diagnostics, repairs, DPF and aftertreatment, electrical, brakes, and roadside calls.
Fleet Service
Scheduled PMs, DOT inspections, and on-site repairs that keep your trucks moving and your downtime measured in hours, not days.
Performance Diesel
Tuning, emissions solutions, turbo and fuel upgrades, and builds for Cummins, Powerstroke, and Duramax.
We don't quit until it runs right.
Every job gets the same standard: diagnose it once, fix it right, and back it up. From a stranded tractor on the shoulder to a stage-3 performance build, the wrench in our hand is the same one that's been turning diesel bolts for three generations.
- On-site repairs across the region — we bring the shop to you
- Honest diagnostics and a quote before the wrench turns
- Cummins, Detroit, Paccar, CAT, Powerstroke, Duramax
- Performance work tuned for daily-driver reliability
Truck down? Fleet behind? Build stalled?
Tell us what you're working on — we'll be in touch fast.