# NAICS 336120: Heavy Duty Truck Manufacturing

Breadcrumb: [NAICS codes](https://bidrover.com/naics) › [336120 Heavy Duty Truck Manufacturing](https://bidrover.com/naics/336120)

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.

- NAICS code: 336120
- Title: Heavy Duty Truck Manufacturing
- Sector: 31-33 Manufacturing
- Subsector: 336 Transportation Equipment Manufacturing
- Industry group: 3361 Motor Vehicle Manufacturing
- SBA size standard: 1,500 employees
- Open bids on BidRover: 0

## Open bids (0)

No open bids cite this code right now.

## Frequently asked questions

### What is NAICS code 336120?

NAICS 336120 is "Heavy Duty Truck Manufacturing" in the 2022 North American Industry Classification System, in sector 31-33 (Manufacturing). 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.

### What is the SBA size standard for NAICS 336120?

A business is small under NAICS 336120 at or below 1,500 employees, including affiliates (13 CFR 121.201). Confirm the standard named in each solicitation.

### How many government bids are open under NAICS 336120?

No open bid in BidRover cites NAICS 336120 right now. Many state and local notices do not list a NAICS code, so a keyword alert for this work catches more of them.

### How do I get alerts for NAICS 336120 bids?

Save an alert on this page. A free account gets new matching bids by weekly email; the Team plan ($19/mo) sends daily alerts with match scores, the buyer, source link and documents.

## Related NAICS codes

- [336211 Motor Vehicle Body Manufacturing](https://bidrover.com/naics/336211)
- [336213 Motor Home Manufacturing](https://bidrover.com/naics/336213)
- [336110 Automobile and Light Duty Motor Vehicle Manufacturing](https://bidrover.com/naics/336110)
- [336992 Military Armored Vehicle, Tank, and Tank Component Manufacturing](https://bidrover.com/naics/336992)
- [333120 Construction Machinery Manufacturing](https://bidrover.com/naics/333120)

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Code titles and definitions: U.S. Census Bureau, North American Industry Classification System (NAICS), 2022 (https://www.census.gov/naics/). Size standards: U.S. Small Business Administration, Small Business Size Standards, 13 CFR 121.201, eCFR text current as of 2026-10-21 (https://www.ecfr.gov/current/title-13/section-121.201).

BidRover lists bids from official public sources. It is not an issuing authority; confirm the NAICS code and size standard named in each solicitation.