BIG CITY DIESEL INC Diesel & Hydraulics– GTA

Looking for a reliable heavy-truck repair shop that actually diagnoses the problem — not just throws parts at it?

Big City Diesel Inc. is a full-service heavy truck & equipment repair shop focused on keeping fleets and owner-operators on the road.

SHOP SERVICES:
✅ Ontario Safety Inspections (Yellow Sticker)
✅ Emission Testing
✅ Engine Diagnostics & Repair
✅ Electrical Diagnostics & Wiring Repairs
✅ Custom Electrical & Re-wire
✅ Hydraulic System Diagnosis & Repair
✅ Hydraulic Hose/Hydraulic Component Rebuilds
✅ Air Systems Diagnose & Repair
✅ Truck Mounted Equipment
✅ New Installations/Outfitting
✅ Hydrovac Diagnosing/Repairs/Maintenance/Parts
✅ Hydrovac Boiler Test/Repair/Installs/Parts
✅ DPF Cleaning/Tuning
✅ Check Engine Light Troubleshooting
✅ Preventative Maintenance & Fleet Service
✅ Breakdown Repairs (Shop Priority)
✅ Breakdown (Mobile Service 24/7)
✅ At your shop Diagnostics

WE SERVICE:
• Highway tractors
• Dump trucks
• Cement trucks
• Hydrovac trucks
• Electrical Infrastructure trucks
• Mobile Cranes/Boom trucks
• Trailers
• F550/Ram 5500
• Hino, Isuzu
• Peterbilt, Kenworth, Western Star, Freightliner, Mack, Volvo, International
• CAT and Cummins In-Frame Rebuilds
• Paccar, Mack Mp7/Mp8, International, Cummins, Caterpillar
• CAT/John Deere Heavy equipment
• Fleet vehicles & contractor equipment

WHY SHOPS & FLEETS CHOOSE US:
✔ Proper diagnostics — no guesswork
✔ Heavy-duty experience
✔ Fast turnaround times
✔ Honest, straight answers
✔ Shop equipped for serious repairs


Your Trucks or Equipment makes money only when it’s on the road — let us keep it there.


Call or text to book your truck in today. 647 613-8537


BIG CITY DIESEL INC
Truck & Equipment
Heavy Duty Done Right.