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United 31 years

Medium and Heavy Duty Truck / Trailer Service & Repair in CA


United Truck Centers, in Sylmar, California, is a complete commercial truck and trailer repair facility for all types of makes and models. We are an authorized dealer and warranty center for Mitsubishi Fuso Trucks, Cummins diesel engines, and Allison transmission, providing service, warranty work, repairs and genuine parts. We offer everything you would expect from a full service shop, from B.I.T. inspections and minor repairs to major overhauls. We specialize in preventative maintenance programs customized to fit your needs. Services include:

  • B.I.T. inspections,
  • Annual inspections,
  • Smoke opacity testing,
  • Welding and fabrication,
  • Wheel Alignments for trucks, buses, RVs, and trailers,
  • Suspension and frame,
  • Brake (air/hydraulic),
  • Authorized Cummins dealer,
  • Authorized Allison dealer,
  • Diesel truck repairs,
  • Transmissions,
  • Electrical,
  • Trailer repairs,
  • A/C and heating.


The facility is fully equipped to service and repair trucks with today's technology. Our service technicians are factory trained and certified to offer you the best in repairs and maintenance. With more than 15 technicians, United Truck Centers can give you a quick turnaround of your vehicle.

We serve our customers outside our facilities too. Our 6 Mobile Service Trucks let us bring the service to you!

We Service the Following Trucks