At Harmon Truck Service, we understand the challenges of managing and maintaining diesel trucks and fleets. Our mobile truck repair services are designed to offer comprehensive solutions for your diesel truck needs.

What We Offer: Comprehensive Mobile Truck Repair Services
Engine Diagnostics and Repairs
Diesel engines are the powerhouse of your trucks. Our technicians are skilled in diagnosing and repairing all engine-related issues. We use advanced diagnostic tools to accurately detect the problem, ensuring a quick and effective repair. Our services include engine overhauls, fuel system repairs, and turbocharger maintenance.
Transmission and Drivetrain Services
A well-functioning transmission and drivetrain are crucial for the smooth operation of your diesel truck. We specialize in transmission repairs and drivetrain maintenance, offering services that range from clutch replacement to differential repairs. Our goal is to ensure your truck delivers optimal performance and reliability on the road.
Electrical System Maintenance
The electrical system in a diesel truck is complex and requires specialized knowledge for maintenance and repairs. Our technicians are adept at handling all electrical components, including alternators, starters, and battery systems. We ensure that your truck's electrical system is functioning efficiently to avoid any unexpected breakdowns.
Brake System Repairs
Safety is paramount, and the brake system is a critical safety component in any vehicle. Our mobile repair services include comprehensive brake system checks and repairs. We handle everything from brake pad replacements to hydraulic system repairs, ensuring your truck stops safely and reliably.
Preventive Maintenance
Regular maintenance is key to preventing major repairs and extending the lifespan of your diesel truck. Our preventive maintenance services include oil changes, filter replacements, and thorough inspections of all major components. We help you keep your truck in top condition, minimizing downtime and repair costs.
Why Mobile Truck Repair Services Are Essential
Mobile truck repair services are essential for minimizing downtime and ensuring your fleet is always operational. Our mobile units are equipped to provide on-site repairs, saving you the time and hassle of bringing your truck to a shop. Whether you're stranded on the road or need maintenance at your location, we're here to provide timely and efficient services.
Areas We Serve
Harmon Truck Service is proud to serve a wide range of locations, including Bourbon, MO; Cuba, MO; Clayton, MO; St. Peters, MO; Chesterfield, MO; Lebanon, MO; and Glenallen, MO. Our mobile repair units are ready to reach you wherever you are within these areas, ensuring prompt and reliable service.
Your Trusted Partner for Diesel Truck Repairs
Harmon Truck Service is committed to providing top-quality mobile truck repair services for diesel trucks and fleets. Our team of skilled technicians and state-of-the-art equipment ensure that your vehicles are in the best hands. Contact us today for reliable, efficient, professional mobile truck repair services in Sullivan, MO, and the surrounding areas.

