AI exposure by occupation, O*NET 49-3031.00
Will AI replace Bus and Truck Mechanics and Diesel Engine Specialists?
Bus and Truck Mechanics and Diesel Engine Specialists: AI can already handle 1 of 26 tasks; most of the work is hands-on, and the part AI can address mostly needs an efficient-tier model.
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Every task, scored
The 26 tasks O*NET 30.3 lists for Bus and Truck Mechanics and Diesel Engine Specialists, from most to least exposed. 1 reach 60 or more, the level at which AI already handles a task.
| Task | AI exposure | Evidence | Model tier |
|---|---|---|---|
| Inspect and verify dimensions and clearances of parts to ensure conformance to factory specifications. | Estimated | Standard | |
| Inspect brake systems, steering mechanisms, wheel bearings, and other important parts to ensure that they are in proper operating condition. | Estimated | Efficient | |
| Inspect, repair, and maintain automotive and mechanical equipment and machinery, such as pumps and compressors. | Estimated | Efficient | |
| Adjust or repair computer controlled exhaust emissions devices. | Estimated | Efficient | |
| Specialize in repairing and maintaining parts of the engine, such as fuel injection systems. | Estimated | Efficient | |
| Install or repair accessories. | Estimated | Efficient | |
| Repair or adjust seats, doors, or windows. | Estimated | Efficient | |
| Dismount, mount, and repair or replace tires. | Estimated | Efficient | |
| Maintain or repair vehicles with alternative fuel systems, including biodiesel, hybrid, or compressed natural gas vehicles. | Estimated | Efficient | |
| Raise trucks, buses, and heavy parts or equipment using hydraulic jacks or hoists. | Estimated | No tier | |
| Adjust and reline brakes, align wheels, tighten bolts and screws, and reassemble equipment. | Estimated | No tier | |
| Perform routine maintenance such as changing oil, checking batteries, and lubricating equipment and machinery. | Estimated | No tier | |
| Examine and adjust protective guards, loose bolts, and specified safety devices. | Estimated | No tier | |
| Rewire ignition systems, lights, and instrument panels. | Estimated | No tier | |
| Disassemble and overhaul internal combustion engines, pumps, generators, transmissions, clutches, and differential units. | Estimated | No tier | |
| Rebuild gas or diesel engines. | Estimated | No tier | |
| Measure vehicle emissions to determine whether they are within acceptable limits. | Estimated | No tier | |
| Follow green operational practices involving conservation of water or energy or reduction of solid waste. | Estimated | No tier | |
| Recondition and replace parts, pistons, bearings, gears, and valves. | Estimated | No tier | |
| Align front ends and suspension systems. | Estimated | No tier | |
| Operate valve-grinding machines to grind and reset valves. | Estimated | No tier | |
| Attach test instruments to equipment, and read dials and gauges to diagnose malfunctions. | Estimated | No tier | |
| Inspect, test, and listen to defective equipment to diagnose malfunctions, using test instruments such as handheld computers, motor analyzers, chassis charts, or pressure gauges. | Estimated | No tier | |
| Test drive trucks and buses to diagnose malfunctions or to ensure that they are working properly. | Estimated | No tier | |
| Diagnose and repair vehicle heating and cooling systems. | Estimated | No tier | |
| Use handtools, such as screwdrivers, pliers, wrenches, pressure gauges, or precision instruments, as well as power tools, such as pneumatic wrenches, lathes, welding equipment, or jacks and hoists. | Estimated | No tier |
Observed: scored from AI use recorded in the Anthropic Economic Index (June 2026 release), 0 of 26 tasks. Estimated: scored from the task's O*NET 30.3 work activity, 26 of 26. Importance is O*NET's 1 to 5 rating of how central the task is. Model tier is the lowest tier that can do the task under the published rubric; "No tier" marks hands-on work.
The model tier this role needs
An efficient-tier model or lower covers 30% of the role's importance-weighted task work. 34% of the work is something AI can address at some tier, and 66% is hands-on.
Efficient, standard and frontier tiers come from the JobRoute model tier reference. The recommended tier is the lowest one that covers 80% of the work AI can address. How the method works.
Wages, employment and outlook
- US employment
- 289,960
- Median annual wage
- $61,770
- Middle half of earners
- $50,540 to $75,470
- Projected change, 2024 to 2034
- +2.4%
Employment and wages: BLS Occupational Employment and Wage Statistics, May 2025, national. Projection: BLS Employment Projections 2024 to 2034.
Adjacent roles
The occupations that reuse the most of this role's skills, with the usual time to move. These are the first places to look when you plan to redeploy or retrain people in this role.
- Motorboat Mechanics and Service Technicians 70% skill overlap, about 11 months to move Exposure19
- Automotive Service Technicians and Mechanics 69% skill overlap, about 11 months to move Exposure21
- Mobile Heavy Equipment Mechanics, Except Engines 68% skill overlap, about 12 months to move Exposure17
- Farm Equipment Mechanics and Service Technicians 66% skill overlap, about 12 months to move Exposure22
- Motorcycle Mechanics 66% skill overlap, about 12 months to move Exposure17
Skill overlap and transition time from the JobRoute role adjacency graph on O*NET 30.3 skills.
Questions about Bus and Truck Mechanics and Diesel Engine Specialists and AI
Will AI replace Bus and Truck Mechanics and Diesel Engine Specialists?
AI already handles 1 of the 26 tasks O*NET lists for this occupation, at a task exposure of 60 or more, and the role's importance-weighted exposure is 18 out of 100. JobRoute scores tasks, not whole jobs, so the score shows how much of the work changes rather than whether the job disappears. BLS projects employment to change by +2.4% from 2024 to 2034.
What is the AI exposure of Bus and Truck Mechanics and Diesel Engine Specialists?
18 out of 100 on JobRoute's task exposure measure, the importance-weighted average of the role's O*NET task scores. Higher means more of the work is AI-doable today. 0 of the 26 task scores are observed in the Anthropic Economic Index (June 2026 release), and the other 26 are estimated from each task's O*NET work activity.
Which Bus and Truck Mechanics and Diesel Engine Specialists tasks can AI already do?
The tasks with the highest exposure are: Inspect and verify dimensions and clearances of parts to ensure conformance to factory specifications. It is the only task that reach 60 or more.
What AI model tier does this role need?
An efficient-tier model or lower covers 30% of the role's importance-weighted task work, and 66% is hands-on work that no model tier covers. JobRoute assigns each task the lowest tier that can do it under a published rubric and recommends the lowest tier that covers 80% of the work AI can address.
How many people work as Bus and Truck Mechanics and Diesel Engine Specialists, and what do they earn?
289,960 people in the United States, with a median annual wage of $61,770 (BLS Occupational Employment and Wage Statistics, May 2025). BLS Employment Projections expect a change of +2.4% from 2024 to 2034.
How to cite
Data version 2026-11-02, JobRoute method v1.0.0. Download all occupations or this occupation as JSON. Methodology.
JobRoute (2026). AI exposure: Bus and Truck Mechanics and Diesel Engine Specialists. Data version 2026-11-02, method v1.0.0. Built on O*NET 30.3, BLS OEWS May 2025 and the Anthropic Economic Index (June 2026). CC BY 4.0. https://www.jobroute.ai/jobs/bus-and-truck-mechanics-and-diesel-engine-specialists
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