View unit group

NOC 2021 Version 1.0


Search by job title
Search by NOC code

94204 – Mechanical assemblers and inspectors

Mechanical assemblers assemble a wide variety of mechanical products such as trucks, buses, snowmobiles, garden tractors, automotive engines, transmissions, outboard motors, gearboxes, hydraulic pumps and sewing machines. Inspectors in this unit group check and inspect subassemblies and finished products to ensure proper quality and product specifications. They are employed by machinery and transportation equipment manufacturers and by other manufacturing companies.


Example titles

  • Automotive engine assembler
  • Garden machinery assembler
  • Gearbox assembler
  • Gearcase assembler
  • Hydraulic hoist assembler
  • Mechanical assembler
  • Sewing machine assembler
  • Snowmobile assembler
  • Tractor assembler
  • Transmission assembler
  • Truck assembler
  • Truck assembly inspector
  • Truck trailer assembler
  • Vending machine assembler

Main duties

This group performs some or all of the following duties:
    Mechanical assemblers
    • Assemble, fit and install prefabricated parts to form subassemblies or finish products using hand and power tools
    • Position, align and adjust parts for proper fit and assembly and connect cables, tubes and wires
    • Fasten parts together using bolting and riveting equipment or other fastening and joining techniques
    • Operate or tend automated assembling equipment, such as robotics and fixed automation equipment
    • Operate small cranes to transport or position larger parts as required.
    Mechanical inspectors
    • Check subassemblies and inspect finished products for proper quality
    • Check mechanical assemblies and subassemblies for alignment and proper functioning
    • Test and check electrical assemblies and wiring for proper connections
    • Perform minor adjustments and repairs.

Employment requirements

  • Some secondary school education is required.
  • Up to two years of on-the-job training are provided.
  • Experience as a mechanical assembler may be required for inspectors in this unit group.

Additional information

  • Progression to supervisory positions is possible with experience.
  • There is little or no mobility among the various assemblers and inspectors in this unit group.


  • Aircraft assemblers and aircraft assembly inspectors (93200)
  • Machine fitters (72405)
  • Motor vehicle assemblers, inspectors and testers (94200)
  • Supervisors, other mechanical and metal products manufacturing (92023)

Breakdown summary

Broad occupational category
9 – Occupations in manufacturing and utilities
4 – Occupations usually require a secondary school diploma; or several weeks of on-the-job training
Major group
94 – Machine operators, assemblers and inspectors in processing, manufacturing and printing
Sub-major group
942 – Assemblers and inspectors in manufacturing
Minor group
9420 – Mechanical, electrical and electronics assemblers and inspectors
NOC 2021 Version 1.0
Date modified: