{"v":"2026-11-02","dataVersion":"ONET-30.3+BLS-MAY25","code":"51-2031.00","slug":"engine-and-other-machine-assemblers","title":"Engine and Other Machine Assemblers","alt":["Assembler","Engine Assembler","Turbine Assembler","Motors Assembler","Machine Assembler","Assembler Erector","Generator Assembler","Crane Assembler","Product Assembler","Injector Assembler","Truck Transmission Builder","Field Service Technician"],"employment":34000,"wage":{"median":53710,"p25":45230,"p75":74920},"growthPct":-21.1,"exposure":37.8,"taskCount":12,"highCount":4,"midCount":0,"lowCount":8,"aeiObserved":0,"fit":{"mix":{"none":40.6,"efficient":42,"standard":17.4,"frontier":0},"counts":{"none":5,"efficient":5,"standard":2,"frontier":0},"recommended":"standard","coveragePct":59.4,"addressablePct":59.4},"tasks":[{"t":"Read and interpret assembly blueprints or specifications manuals, and plan assembly or building operations.","imp":4.65,"exp":65,"src":"heuristic","tier":"efficient","gwa":"Getting Information"},{"t":"Inspect, operate, and test completed products to verify functioning, machine capabilities, or conformance to customer specifications.","imp":4.46,"exp":80,"src":"heuristic","tier":"standard","gwa":"Inspecting Equipment, Structures, or Materials"},{"t":"Position or align components for assembly, manually or using hoists.","imp":4.42,"exp":15,"src":"heuristic","tier":null,"gwa":"Handling and Moving Objects"},{"t":"Set and verify parts clearances.","imp":4.4,"exp":80,"src":"heuristic","tier":"efficient","gwa":"Handling and Moving Objects"},{"t":"Verify conformance of parts to stock lists or blueprints, using measuring instruments such as calipers, gauges, or micrometers.","imp":4.39,"exp":80,"src":"heuristic","tier":"standard","gwa":"Estimating the Quantifiable Characteristics of Products, Events, or Information"},{"t":"Fasten or install piping, fixtures, or wiring and electrical components to form assemblies or subassemblies, using hand tools, rivet guns, or welding equipment.","imp":4.25,"exp":20,"src":"heuristic","tier":"efficient","gwa":"Handling and Moving Objects"},{"t":"Remove rough spots and smooth surfaces to fit, trim, or clean parts, using hand tools or power tools.","imp":4.15,"exp":15,"src":"heuristic","tier":null,"gwa":"Handling and Moving Objects"},{"t":"Lay out and drill, ream, tap, or cut parts for assembly.","imp":4.09,"exp":15,"src":"heuristic","tier":null,"gwa":"Handling and Moving Objects"},{"t":"Rework, repair, or replace damaged parts or assemblies.","imp":4.08,"exp":20,"src":"heuristic","tier":"efficient","gwa":"Repairing and Maintaining Mechanical Equipment"},{"t":"Assemble systems of gears by aligning and meshing gears in gearboxes.","imp":3.96,"exp":15,"src":"heuristic","tier":null,"gwa":"Handling and Moving Objects"},{"t":"Set up and operate metalworking machines, such as milling or grinding machines, to shape or fabricate parts.","imp":3.96,"exp":15,"src":"heuristic","tier":null,"gwa":"Controlling Machines and Processes"},{"t":"Maintain and lubricate parts or components.","imp":3.94,"exp":20,"src":"heuristic","tier":"efficient","gwa":"Repairing and Maintaining Mechanical Equipment"}],"adjacent":[{"code":"51-2023.00","slug":"electromechanical-equipment-assemblers","title":"Electromechanical Equipment Assemblers","overlap":0.77,"months":8,"exposure":15.4,"strong":true},{"code":"51-2022.00","slug":"electrical-and-electronic-equipment-assemblers","title":"Electrical and Electronic Equipment Assemblers","overlap":0.73,"months":10,"exposure":28.9,"strong":true},{"code":"51-2092.00","slug":"team-assemblers","title":"Team Assemblers","overlap":0.71,"months":11,"exposure":21.4,"strong":true},{"code":"51-2011.00","slug":"aircraft-structure-surfaces-rigging-and-systems-assemblers","title":"Aircraft Structure, Surfaces, Rigging, and Systems Assemblers","overlap":0.7,"months":11,"exposure":23.7,"strong":true},{"code":"49-9041.00","slug":"industrial-machinery-mechanics","title":"Industrial Machinery Mechanics","overlap":0.65,"months":13,"exposure":24.2,"strong":true}]}