NAICS UNIVERSITY · Free research for insurance agents
Heavy Duty Truck Manufacturing
NAICS 336120 · United States · 2022 edition
This industry comprises establishments primarily engaged in (1) manufacturing heavy duty truck chassis and assembling complete heavy duty trucks, buses, heavy duty motor homes, and other special purpose heavy duty motor vehicles for highway use or (2) manufacturing heavy duty truck chassis only.
Start the review with product liability.
For Heavy Duty Truck Manufacturing, the saved research highlights product liability, workers' compensation, commercial property. Confirm how these arise in the actual operation, what controls are used and whether additional services change the proposed coverage.
Questions to ask
- What vehicle classes and types are manufactured — Class 6-8 trucks, buses, specialty vehicles, or chassis only?
- What is the annual unit production volume and approximate revenue?
- Is there a history of product liability claims, recalls, or NHTSA investigations?
- What painting, surface treatment, or hazardous materials handling occurs on-site, and what environmental permits are held?
- How is the workforce structured — direct employees versus contract labor — and what safety programs are in place?
- Are finished vehicles or chassis tested on-road prior to delivery, and who operates them?
- For Heavy Duty Truck Manufacturing, what should the underwriter know about prior product liability losses involving vehicle accidents attributed to a manufacturing defect?
- For Heavy Duty Truck Manufacturing, what should the underwriter know about regulatory or nhtsa safety investigations or pending recalls?
Activities described by this code
Other activities to examine
- Manufacturing truck and bus bodies and assembling vehicles on purchased chassis: 336211 — Motor Vehicle Body Manufacturing
- Manufacturing motor homes on purchased heavy truck chassis: 336213 — Motor Home Manufacturing
- Manufacturing vans, minivans, and light trucks: 336110 — Automobile and Light Duty Motor Vehicle Manufacturing
- Manufacturing military armored vehicles: 336992 — Military Armored Vehicle, Tank, and Tank Component Manufacturing;
- Manufacturing off-highway construction equipment: 333120 — Construction Machinery Manufacturing
Census classification reference
For educational purposes only. AI-generated insurance research and automated logic can contain errors. Independently verify classification and coverage decisions.
Compare another operationInsurance operations research — draft
Heavy duty truck manufacturers assemble complete Class 6-8 trucks, buses, heavy duty motor homes, and specialty purpose vehicles, or produce chassis only for downstream body builders. Operations typically involve large production floor assembly lines, welding, fabrication, painting, quality testing, and significant material handling with a sizable hourly workforce.
Questions to investigate
- What vehicle classes and types are manufactured — Class 6-8 trucks, buses, specialty vehicles, or chassis only?
- What is the annual unit production volume and approximate revenue?
- Is there a history of product liability claims, recalls, or NHTSA investigations?
- What painting, surface treatment, or hazardous materials handling occurs on-site, and what environmental permits are held?
This insurance research was generated in April 2026. It has not received a complete human review. The October 12, 2026 audit checked codes and titles only, not descriptions or coverage assertions.