Harmon Truck Service specializes in Department of Transportation (DOT) inspection services, ensuring your diesel trucks and fleets are road-ready and regulation-compliant.

Understanding DOT Inspections
What is a DOT Inspection?
A DOT inspection is a thorough check-up of commercial vehicles to ensure they meet the safety standards set by the Department of Transportation. These inspections are crucial for maintaining the safety of both the vehicle and the public. They are mandated at state and federal levels and can be conducted randomly or as scheduled annual check-ups.
Key Components of a DOT Inspection
During a DOT inspection, various components of your vehicle are examined. These include:
- Brakes: Ensuring they function correctly and have no leaks or wear that could impair their performance.
- Lights and Reflectors: Checking that all lights and reflectors are operational, adequately mounted, and not obscured.
- Steering Mechanism: Inspecting the steering wheel and mechanism for any faults that could impact vehicle control.
- Tires and Wheels: Assess the condition of tires for adequate tread depth and check wheels for cracks or defects.
- Fuel System: Examining for leaks or faults in the fuel system that could pose safety risks.
- Coupling Devices: Ensuring that coupling devices are secure and functional.
Our Inspection Services at Harmon Truck Service
Harmon Truck Service has a team of skilled technicians adept at performing detailed and comprehensive DOT inspections. Our goal is to identify issues and provide solutions that ensure your fleet's longevity and compliance.
The Harmon Edge
- Expertise: Our team consists of experienced professionals who understand the nuances of DOT regulations.
- Technology: We utilize the latest tools and diagnostic equipment to conduct thorough inspections.
- Efficiency: Understanding the importance of your time, we ensure prompt and accurate inspections.
Areas We Serve
While we are based in Sullivan, MO, our services extend to various locations, including Bourbon, MO; Cuba, MO; Clayton, MO; St. Peters, MO; Chesterfield, MO; Lebanon, MO; and Glenallen, MO. We are committed to serving these communities, offering top-tier DOT inspection services to ensure your diesel trucks and fleets are safe, compliant, and ready to hit the road.
The Importance of Regular DOT Inspections
Safety and Compliance
Regular DOT inspections are crucial for ensuring the safety of your vehicles. They help identify and fix potential hazards before they lead to accidents or violations. Staying compliant keeps your fleet safe and protects your business from hefty fines and legal complications.
Preventative Maintenance
Regular inspections can also be seen as a form of preventative maintenance. Identifying and addressing minor issues during these inspections can prevent major repairs, saving time and money.
Schedule Your DOT Inspection Today
At Harmon Truck Service, we understand the importance of keeping your diesel trucks and fleets in top condition. Our state and federal-level DOT inspection services are designed to provide peace of mind, knowing that your vehicles meet all safety and regulatory standards. Whether in Sullivan, Bourbon, Cuba, Clayton, St. Peters, Chesterfield, Lebanon, or Glenallen, MO, our team ensures your fleet's compliance and safety.
Remember, when it comes to DOT inspections, it's not just about meeting standards; it's about exceeding them. Let Harmon Truck Service be your partner in navigating the road to compliance.

