Mid Michigan's Most Trusted Heavy Diesel Specialists.

Truck Wizard Fleet Services — semi trucks, excavator, and skid steer

keeping fleets on the road. Engine-down emergencies, scheduled maintenance, DOT compliance — we handle it all.

What We Do

Heavy Diesel Services

Engine Diagnostics & Repair

Engine Diagnostics & Repair

Diagnostic for all major diesels. We find the problem fast and fix it right.

Preventive Fleet Maintenance

Preventive Fleet Maintenance

Scheduled PM programs that reduce downtime and extend the life of your entire fleet.

Transmission & Drivetrain

Transmission & Drivetrain

Manual, automatic, and automated manual transmissions. Axles, driveshafts, and differentials.

Brake Systems

Brake Systems

Air brake inspection, adjustment, and repair. DOT-compliant brake work for all commercial vehicles.

Electrical & Wiring

Electrical & Wiring

Chassis electrical, lighting, ABS, and diagnostics for truck and trailer electronics.

DOT Inspection Prep

DOT Inspection Prep

Get your fleet inspection-ready. We identify and correct violations before they cost you.

Why Choose Us

When Your Truck Goes Down, Every Hour Costs You Money.

We built Truck Wizard around one principle: fleet operators can't afford to wait. We are experienced on all major makes, and equipped to diagnose and repair.

Over 10+ years of experience.

  • Diesel technicians
  • All major makes & models
  • Quick and safe turn around

Keep Your Fleet Moving.

One call gets your truck diagnosed, scheduled, and back on the road.

Truck Wizard Fleet Services

Most trusted heavy diesel specialists. Keeping fleets moving.

(248) 636-3492

Our Services

  • Engine Diagnostics & Repair
  • Preventive Fleet Maintenance
  • Transmission & Drivetrain
  • Brake Systems
  • Electrical & Wiring
  • DOT Inspection Prep

Contact & Hours

© 2026 Truck Wizard Fleet Services LLC. All rights reserved.

Serving Oakland & Genesee Counties