At Harmon Truck Service, based in Sullivan, MO, we understand that every second counts when your diesel truck or fleet faces an unexpected breakdown. That's why we offer dedicated 24/7 emergency roadside assistance services, ensuring help is always a call away.

Comprehensive Emergency Services
Our emergency roadside assistance caters to various needs for diesel trucks and fleets. Our team is ready to tackle any challenge, from engine troubles to electrical system failures. We provide:
- Engine Diagnostics and Repair: Understanding the complexities of diesel engines, we offer thorough diagnostics and efficient repair solutions.
- Tire Services: Whether a flat tire or wear and tear, our tire services ensure you’re not stranded due to tire issues.
- Fuel Delivery and Draining: Run out of fuel or filled up with the wrong type? We've got you covered.
- Battery Jumpstarts: Dead batteries are common, and our quick jumpstart service helps you avoid prolonged delays.
- Electrical System Repairs: Handling intricate electrical systems with precision, we resolve often overlooked issues.
Round-the-Clock Availability
Our services are available 24 hours a day, seven days a week. We understand that truck breakdowns don't adhere to a 9-to-5 schedule, so neither do we.
Areas We Serve
Harmon Truck Service extends its emergency roadside assistance within a 100-mile radius of Sullivan, MO, covering key areas, including Bourbon, MO; Cuba, MO; Clayton, MO; St. Peters, MO; Chesterfield, MO; Lebanon, MO; and Glenallen, MO.
Emergency Roadside Assistance: A Closer Look
- Prompt Response, Every Time: Our team responds promptly when you call Harmon Truck Service for emergency assistance. We prioritize getting to your location swiftly, understanding that time is of the essence in the trucking industry.
- State-of-the-Art Tools and Equipment: Equipped with the latest tools and diagnostic equipment, our technicians are prepared to handle various issues on the spot. This reduces the need for towing services and further delays.
- Experienced and Certified Technicians: Our team comprises industry-certified professionals who are skilled and regularly trained to keep up with the latest advancements in truck technology.
Call Us For Your Roadside Emergencies
At Harmon Truck Service, we're not just a service provider but your partner in keeping your diesel trucks and fleets running smoothly. With our 24/7 emergency roadside assistance, extensive service area, and a team of expert technicians, we ensure that help is always within reach. Trust us to be there for you, wherever you are within our service radius, ready to tackle any challenge your diesel truck faces.

