336310 Motor Vehicle Gasoline Engine and Engine Parts Manufacturing

Official definition

This industry comprises establishments primarily engaged in (1) manufacturing and/or rebuilding motor vehicle gasoline engines and engine parts and/or (2) manufacturing and/or rebuilding carburetors, pistons, piston rings, and engine valves, whether or not for vehicular use.

Examples Census gives

• Carburetors, all types, manufacturing
• Crankshaft assemblies, automotive and truck gasoline engine, manufacturing
• Cylinder heads, automotive and truck gasoline engine, manufacturing
• Fuel injection systems and parts, automotive and truck gasoline engine, manufacturing
• Gasoline engines for hybrid automotive vehicles manufacturing
• Pistons and piston rings manufacturing
• Manifolds (i.e., intake and exhaust), automotive and truck gasoline engine, manufacturing
• Pumps (e.g., fuel, oil, water), mechanical, automotive and truck gasoline engine (except power steering), manufacturing
• Timing gears and chains, automotive and truck gasoline engine, manufacturing
• Valves, engine, intake and exhaust, manufacturing

Source: US Census Bureau, 2022 NAICS descriptions.

When to use a different code

Census classifies these close-sounding activities somewhere else. Businesses mainly engaged in:

• Manufacturing wiring harnesses and other vehicular electrical and electronic equipment are classified in Industry 336320, Motor Vehicle Electrical and Electronic Equipment Manufacturing.
• Manufacturing transmission and power train equipment are classified in Industry 336350, Motor Vehicle Transmission and Power Train Parts Manufacturing.
• Manufacturing radiators are classified in Industry 336390, Other Motor Vehicle Parts Manufacturing.
• Manufacturing steering and suspension components are classified in Industry 336330, Motor Vehicle Steering and Suspension Components (except Spring) Manufacturing.
• Manufacturing parts for machine repair and equipment parts (except electric) on a job or shop basis are classified in Industry 332710, Machine Shops.
• Manufacturing rubber and plastic belts and hoses without fittings are classified in Industry 326220, Rubber and Plastics Hoses and Belting Manufacturing.
• Manufacturing stationary and diesel engines are classified in U.S. Industry 333618, Other Engine Equipment Manufacturing.

Source: US Census Bureau, 2022 NAICS cross-references.

Activities listed under 336310

The Census index assigns these 26 activities to this code. If your business matches one, this is your code.

• Assembly line rebuilding of automotive and truck gasoline engines
• Bearings (e.g., camshaft, crankshaft, connecting rod), automotive and truck gasoline engine, manufacturing
• Carburetors, all types, manufacturing
• Connecting rods, automotive and truck gasoline engine, manufacturing
• Crankshaft assemblies, automotive and truck gasoline engine, manufacturing
• Cylinder heads, automotive and truck gasoline engine, manufacturing
• Engine block assemblies, automotive and truck gasoline, manufacturing
• Engine intake and exhaust valves manufacturing
• Engines and parts (except diesel), automotive and truck, manufacturing
• Flywheels and ring gears, automotive and truck gasoline engine, manufacturing
• Fuel injection systems and parts, automotive and truck gasoline engine, manufacturing
• Fuel pumps, mechanical, automotive and truck gasoline engine, manufacturing
• Gasoline engine parts, mechanical, automotive and truck, manufacturing
• Gasoline engines for hybrid automotive vehicles manufacturing
• Gasoline engines, automotive and truck, manufacturing
• Governors for automotive gasoline engines manufacturing
• Internal combustion engines, automotive and truck gasoline, manufacturing
• Manifolds (i.e., intake and exhaust), automotive and truck gasoline engine, manufacturing
• Pistons and piston rings manufacturing
• Positive crankcase ventilation (PCV) valves, engine, manufacturing
• Pumps (e.g., fuel, oil, water), mechanical, automotive and truck gasoline engine (except power steering), manufacturing
• Rebuilding automotive and truck gasoline engines
• Rings, piston, manufacturing
• Rocker arms and parts, automotive and truck gasoline engine, manufacturing
• Timing gears and chains, automotive and truck gasoline engine, manufacturing
• Valves, engine, intake and exhaust, manufacturing

Source: US Census Bureau, 2022 NAICS index file.

SBA size standard for 336310

To count as a small business for SBA loans and federal contracts under NAICS 336310, your business (including affiliates) must not exceed 1,050 employees. Check your business.

Source: SBA table of size standards, effective March 17, 2023.

Closest UK SIC 2007 codes

There is no official one-to-one link between NAICS and UK SIC. These codes share the same international class (ISIC Rev. 4: 2811, 2813, 2910, 2930), so treat them as a starting point and check the definition.

• 28110Manufacture of engines and turbines, except aircraft, vehicle and cycle enginesUK SIC
• 28131Manufacture of pumpsUK SIC
• 28132Manufacture of compressorsUK SIC
• 29100Manufacture of motor vehiclesUK SIC

Built from Census concordances 2022→2017 NAICS and 2017 NAICS→ISIC Rev. 4.

Similar codes to compare

• 336320Motor Vehicle Electrical and Electronic Equipment Manufacturing
• 336330Motor Vehicle Steering and Suspension Components (except Spring) Manufacturing
• 336340Motor Vehicle Brake System Manufacturing
• 336350Motor Vehicle Transmission and Power Train Parts Manufacturing
• 336360Motor Vehicle Seating and Interior Trim Manufacturing
• 336370Motor Vehicle Metal Stamping
• 336390Other Motor Vehicle Parts Manufacturing