Our mission is to provide diagnostic and repair at dealership quality with family values.

Quality HD Diesel strives to keep your truck(s) up and running. Our team of factory trained and certified technicians have the skills and expertise to get the job done right the first time. Every customer becomes a member of the Quality HD Diesel family and are treated with respect. We stand by our name and provide quality care to our customers and their units, every time.

24/7 Roadside Assistance, INSIGHT & Davie 4 Software, Diagnostic Testing and Repair, Preventative Maintenance, Engine Repairs, Transmission Repairs, Brake Services, certified FMVSS CNG and LNG inspections and/or repairs, and more.

24 HOUR ROAD SERVICE

• Mobile Truck & Trailer Repair - All Makes & Models
• Tire Service - New, Used & Recapped Tires

NATIONAL ACCOUNTS ACCEPTED

• Welding, Electrical, Jump Starts, Lockouts, Fuel Delivery - Everything Short of a Overhaul
• ON-SITE Fleet and Preventative Maintenance Programs
• Family Owned and Operated

Rapid Response Time and Competitive Pricing

Best One Fleet Service of Gas City provides all of east-central and northeastern Indiana with top-notch workmanship in the heavy truck repair industry. Our primary focus is to help you minimize downtime and keep your business moving forward with the products and services you need, always in a timely manner. We offer on-site PM services, advanced engine and aftertreatment diagnostics, mobile welding, mobile DOT inspections, electrical diagnostics, major mechanical repair, and full truck/trailer alignments.

Diagnostic Software: Cummins Insite, Paccar, Detroit, Eaton, Allison, International, and more.