NAICS 33631 - Motor Vehicle Gasoline Engine and Engine Parts Manufacturing
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Related NAICS Codes for NAICS 33631
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| NAICS Code | Industry Title |
|---|---|
| 336310 | Motor Vehicle Gasoline Engine and Engine Parts Manufacturing |
What is NAICS 33631
NAICS code 33631 covers the manufacturing of motor vehicle gasoline engines and engine parts, encompassing the production of complete engines as well as individual components designed for gasoline-powered vehicles. Businesses operating in this sector include manufacturers specializing in combustion engines, engine blocks, cylinder heads, pistons, and related mechanical parts essential for vehicle propulsion. This sector is critical to the automotive supply chain and supports various transportation and defense applications. Government agencies contract these services to ensure the availability of reliable and efficient engines for military vehicles, emergency response fleets, and other government-owned transportation assets. The specialized nature of these engines requires manufacturers to meet rigorous quality and performance standards, making government procurement a significant driver of innovation and compliance in this industry.
Breakdown for NAICS 33631
- Covers manufacturing of complete gasoline-powered motor vehicle engines and individual engine parts.
- Includes production of critical components such as engine blocks, pistons, and cylinder heads.
- Applies to manufacturers serving both commercial automotive and government defense fleets.
- Subject to rigorous quality, performance, and environmental standards for government contracts.
- Supports both production and research & development contracts within the government sector.
- Business size standards vary but generally include small to large manufacturers.
Included Activities for NAICS 33631
- Manufacturing complete gasoline-powered motor vehicle engines.
- Producing engine components such as pistons, camshafts, and engine blocks.
- Assembling engine parts into fully functional propulsion units.
- Testing and quality assurance of engines to meet government standards.
- Supporting engine design improvements focused on fuel efficiency and emissions.
- Providing maintenance and repair parts for government vehicle fleets.
- Custom engineering and modification for specialized government vehicle engines.
- Collaborating on research and development contracts for advanced engine technologies.
Business Types for NAICS 33631
- Gasoline engine manufacturing companies.
- Automotive parts suppliers specializing in engine components.
- Defense contractors producing military vehicle engines.
- OEMs (Original Equipment Manufacturers) for motor vehicle engines.
- Engineering firms providing custom engine design services.
- Maintenance and repair service providers for government fleets.
Government Buyers for NAICS 33631
Government buyers for NAICS 33631 products typically include the Department of Defense (DoD), Department of Transportation (DOT), and federal, state, and local agencies managing vehicle fleets. The DoD procures gasoline engines for tactical and support vehicles, requiring engines that meet stringent durability and performance specifications under diverse environmental conditions. DOT and other agencies purchase these engines for maintenance and upgrades of public service vehicles, ensuring operational readiness and sustainability. Additionally, government contracting supports research and development projects aimed at enhancing fuel efficiency and reducing emissions in engines used by government fleets.
Contract Types & Procurement for NAICS 33631
Contracts awarded under this NAICS code commonly include firm-fixed-price and cost-plus-award-fee contracts, reflecting the need for both well-defined production runs and development efforts. Procurement methods often involve competitive bidding, requests for proposals (RFPs), and occasionally sole-source contracts when specialized engine technology is required. Contract values vary widely depending on the scope, ranging from small contracts for replacement parts to multi-million-dollar agreements for full engine assemblies and custom engineering services. Long-term supply contracts and maintenance agreements are also prevalent, supporting ongoing government fleet operations.
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