Is the Check Engine Light, ABS Light or Check Transmission Light illuminated on your dash?

On-Site Fleet Service now offers an alternative to waiting for an appointment with the Dealer. Electronic engine, transmission and Brake System Diagnostics.

  • Cummins Insite
  • International’s Service Maxx, Diamond Logic Builder
  • Detroit Diesel Diagnostic Link (Detroit and Mercedes)
  • Allison DOC
  • Mack PTT
  • Volvo PTT
  • Isuzu IDSS
  • GMC Tech2Win
  • Ford IDS
  • Bendix A-com, Merritor Wabco Toolbox, & International Hydraulic ABS
  • Mitsubishi MUTIII and Mitsubishi Fuso-Connect
  • Catapillar Electronic Technician (Cat ET)
  • Hino
  • Thomas Built Bus


Over 35 years of experience! Most locations open until Midnight! Why not send your truck to us??


On-Site Truck Repair Professionals have been in business for over 35 years and has grown into the largest non-dealership doing professional diesel truck repair in the state of New Jersey.
Call any of our four locations to get your repairs done right the first time!!

East Brunswick Paul Wondoloski 732-651-1010
Rutherford Jack Nolan 201-438-6900
Kenilworth Frank Scotti 908-686-5230
Lakewood Dina Clickner 732-370-2009

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Shop Hours

7AM - 12 Midnight

  • Electrical
  • Exhaust Systems
  • Suspension Work
  • Fuel Injection
  • Lighting system
  • Coolant Service
  • Vehicle Fluids
  • Chassis Lube
  • Air Filter Replacement
  • Clutch Repairs
  • Vehicle Preventative Maintenance
  • State Diesel Opacity Inspection
  • Air Conditioning Service
  • General Truck Repair
  • Tune Ups
  • Oil Change & Lubrication
  • Brake Service
  • Battery Replacement
  • Belt & Hose Replacement
  • Transmission Service
  • Computer Diagnosis Testing
  • Overhead doors
  • Lift Gates
  • FHWA–DOT Inspections
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