33631 - Motor Vehicle Gasoline Engine and Engine Parts Manufacturing
If you’re involved in manufacturing or contracting within the automotive sector, understanding NAICS codes is crucial. One such important classification is NAICS code 33631, which represents the Motor Vehicle Gasoline Engine and Engine Parts Manufacturing industry. This code plays a key role in identifying businesses engaged in producing gasoline engines and related engine parts used in motor vehicles. Whether you’re a government contractor, supplier, or industry analyst, knowing the specifics of NAICS 33631 is essential to navigate this manufacturing niche.
What is NAICS Code 33631?
NAICS code 33631 covers establishments primarily focused on manufacturing motor vehicle gasoline engines and engine parts. This includes components and complete gasoline engines designed for use in passenger cars, trucks, and a variety of other motor vehicles. The products range from entire engine assemblies to intricate engine parts critical for combustion and performance.
Sector Overview: Manufacturing
NAICS 33631 falls under the broad Manufacturing sector, which encompasses industries engaged in transforming raw materials into finished goods. Within this sector, the focus here is on precision-engineered components that power vehicles, highlighting the industry's technical and industrial importance.
Typical Business Activities Under NAICS 33631
Businesses operating under this NAICS code typically engage in:
- Manufacturing complete motor vehicle gasoline engines for cars and trucks
- Producing engine components such as pistons, crankshafts, camshafts, and cylinder heads
- Manufacturing carburetors and fuel injection systems designed for gasoline engines
- Designing, assembling, and testing engine parts to ensure performance and compliance with regulations
Small Business Size Standards for NAICS 33631
To qualify as a small business under NAICS 33631 for federal contracting purposes, the primary size standard is based on annual receipts:
- Businesses with annual receipts up to $44.5 million are generally classified as small under this NAICS code (subject to SBA size standards updates).
Meeting these standards can help businesses qualify for government contracts, grants, and special bidding preferences.
Examples of Businesses Classified Under NAICS 33631
- Gasoline Engine Manufacturers: Companies producing complete gasoline engines for automotive use.
- Engine Parts Fabricators: Businesses focusing on manufacturing individual engine parts such as pistons, crankshafts, valve trains, and cylinder blocks.
- Fuel System Component Producers: Firms that manufacture carburetors and modern fuel injection systems specifically for motor vehicles.
- OEM Automotive Suppliers: Original Equipment Manufacturers supplying motor vehicle producers with gasoline engine components.
Detailed NAICS 33631 Code Information
| NAICS Code | Title | Description | Sector | Size Standard (Annual Receipts) | Common Business Activities |
|---|---|---|---|---|---|
| 33631 | Motor Vehicle Gasoline Engine and Engine Parts Manufacturing | Establishments primarily engaged in manufacturing motor vehicle gasoline engines and engine parts used in passenger cars, trucks, and other vehicles. | Manufacturing | Up to $44.5 Million | Gasoline engine manufacturing, piston and crankshaft production, carburetor and fuel injection system manufacturing |
Frequently Asked Questions (FAQs)
Q1: What types of engines are covered under NAICS 33631?
A: This code specifically covers gasoline engines used in motor vehicles such as passenger cars and trucks, including their component parts.
Q2: Does NAICS 33631 include diesel engine manufacturing?
A: No, diesel engine manufacturing typically falls under a different NAICS code, such as 336312 (Gasoline Engine and Engine Parts Manufacturing is distinct for gasoline engines).
Q3: How can a business determine if it qualifies as small under this NAICS code?
A: Eligibility is based on annual receipts. As of the latest SBA guidelines, businesses with revenues up to $44.5 million qualify as small.
Q4: Are aftermarket parts manufacturers included in NAICS 33631?
A: Yes, manufacturers producing engine parts that can be used as replacement or upgraded components generally fall under this category if used in gasoline engines.
Q5: Why is knowing the NAICS code important for manufacturers?
A: NAICS codes help in classifying businesses for government contracting, economic analysis, and industry research, making it easier to target opportunities and comply with regulations.
Conclusion
NAICS code 33631 is a vital classification for companies involved in manufacturing gasoline engines and engine parts for motor vehicles. From full engine assembly plants to components manufacturers, businesses within this code contribute significantly to the automotive manufacturing sector. Understanding the industry, its scope, and size standards can position your business for success—whether you're participating in government contracts or expanding market reach. Keep this NAICS code handy for contract bidding, regulatory compliance, and industry networking.
Keywords: NAICS 33631, Motor Vehicle Gasoline Engine Manufacturing, Engine Parts Manufacturing, Automotive Engine Industry, Small Business Size Standards, Gasoline Engine Manufacturers, Fuel Injection Systems, Carburetors, Motor Vehicle Parts Manufacturing.
