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Bus and Truck Mechanics and Diesel Engine Specialists - 49-3031.00

O*NET-SOC Description

Diagnose, adjust, repair, or overhaul buses and trucks, or maintain and repair any type of diesel engines. Includes mechanics working primarily with automobile or marine diesel engines.

Sample of Reported Job Titles

  • Bus Mechanic
  • Diesel Mechanic
  • Diesel Technician (Diesel Tech)
  • Fleet Mechanic
  • General Repair Mechanic
  • Heavy Truck Mechanic
  • Service Technician
  • Trailer Mechanic
  • Transit Mechanic
  • Truck Mechanic

SOC Occupation Groups

Related Occupations

Tasks

  • Adjust and reline brakes, align wheels, tighten bolts and screws, and reassemble equipment.
  • Adjust or repair computer controlled exhaust emissions devices.
  • Align front ends and suspension systems.
  • Attach test instruments to equipment, and read dials and gauges to diagnose malfunctions.
  • Diagnose and repair vehicle heating and cooling systems.
  • Disassemble and overhaul internal combustion engines, pumps, generators, transmissions, clutches, and differential units.
  • Dismount, mount, and repair or replace tires.
  • Examine and adjust protective guards, loose bolts, and specified safety devices.
  • Follow green operational practices involving conservation of water or energy or reduction of solid waste.
  • Inspect and verify dimensions and clearances of parts to ensure conformance to factory specifications.
  • Inspect brake systems, steering mechanisms, wheel bearings, and other important parts to ensure that they are in proper operating condition.
  • Inspect, repair, and maintain automotive and mechanical equipment and machinery, such as pumps and compressors.
  • Inspect, test, and listen to defective equipment to diagnose malfunctions, using test instruments such as handheld computers, motor analyzers, chassis charts, or pressure gauges.
  • Install or repair accessories.
  • Maintain or repair vehicles with alternative fuel systems, including biodiesel, hybrid, or compressed natural gas vehicles.
  • Measure vehicle emissions to determine whether they are within acceptable limits.
  • Operate valve-grinding machines to grind and reset valves.
  • Perform routine maintenance such as changing oil, checking batteries, and lubricating equipment and machinery.
  • Raise trucks, buses, and heavy parts or equipment using hydraulic jacks or hoists.
  • Rebuild gas or diesel engines.
  • Recondition and replace parts, pistons, bearings, gears, and valves.
  • Repair or adjust seats, doors, or windows.
  • Rewire ignition systems, lights, and instrument panels.
  • Specialize in repairing and maintaining parts of the engine, such as fuel injection systems.
  • Test drive trucks and buses to diagnose malfunctions or to ensure that they are working properly.
  • 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.

Detailed Work Activities

  • Adjust equipment to ensure optimal performance.
  • Adjust vehicle components according to specifications.
  • Align equipment or machinery.
  • Dismantle heavy equipment or machinery.
  • Grind parts to required dimensions.
  • Inspect mechanical components of vehicles to identify problems.
  • Install vehicle parts or accessories.
  • Lubricate equipment to allow proper functioning.
  • Measure distances or dimensions.
  • Measure equipment outputs.
  • Monitor resources.
  • Observe equipment in operation to detect potential problems.
  • Operate cranes, hoists, or other moving or lifting equipment.
  • Operate transportation equipment to demonstrate function or malfunction.
  • Rebuild parts or components.
  • Repair defective engines or engine components.
  • Repair non-engine automotive or vehicle components.
  • Repair tires.
  • Replace worn, damaged, or defective mechanical parts.
  • Rewire electrical or electronic systems.
  • Select tools, equipment, or technologies for use in operations or projects.
  • Service green vehicles to make repairs or maintain good working order.
  • Service vehicles to maintain functionality.
  • Test mechanical equipment to ensure proper functioning.
  • Troubleshoot equipment or systems operation problems.

Military Crosswalk Titles

  • 16V146TI Diesel Engine/Waste Heat System Technician (Navy - Enlisted)
  • Advanced Construction Mechanic (Navy - Enlisted)
  • Advanced Diagnostics Shop Management (Navy - Enlisted)
  • Aerospace Propulsion (Air Force - Enlisted)
  • Aerospace Propulsion Apprentice (Air Force - Enlisted)
  • Aerospace Propulsion Apprentice, F100, F119, F135Jet Engines (F-15, F16, F-22 aircraft) (Air Force - Enlisted)
  • Aerospace Propulsion Apprentice, F101, F110, F118, TF34 Jet Engines (A-10, B-1, B-2, F-16, U-2 aircraft) (Air Force - Enlisted)
  • Aerospace Propulsion Apprentice, TF33, CF6, F103, F108, F117, TFE-731, TF39, PW 2040, F138 Jet Engines (Airlift, Special Mission, and B-52 aircraft) (Air Force - Enlisted)
  • Aerospace Propulsion Apprentice, Turboprop andTurboshaft Propulsion (helicopter, propeller, tiltrotor aircraft) (Air Force - Enlisted)
  • Aerospace Propulsion Craftsman, F100, F101, F110, F118, F119, F135, TF34 Jet Engines (A-10, B-1, B-2, F-15, F-16, F-22, F-35, U-2 aircraft) (Air Force - Enlisted)
  • Aerospace Propulsion Craftsman, TF33, CF6, F103, F108, F117, TFE-731, TF39, PW 2040, F138 Jet Engines (Airlift, Special Mission, and B-52 aircraft) (Air Force - Enlisted)
  • Aerospace Propulsion Craftsman, Turboprop andTurboshaft Propulsion (helicopter, propeller, tiltrotor aircraft) (Air Force - Enlisted)
  • Aerospace Propulsion Helper (Air Force - Enlisted)
  • Aerospace Propulsion Helper, F100, F119, F135Jet Engines (F-15, F16, F-22 aircraft) (Air Force - Enlisted)
  • Aerospace Propulsion Helper, F101, F110, F118, TF34 Jet Engines (A-10, B-1, B-2, F-16, U-2 aircraft) (Air Force - Enlisted)
  • Aerospace Propulsion Helper, TF33, CF6, F103, F108, F117, TFE-731, TF39, PW 2040, F138 Jet Engines (Airlift, Special Mission, and B-52 aircraft) (Air Force - Enlisted)
  • Aerospace Propulsion Helper, Turboprop andTurboshaft Propulsion (helicopter, propeller, tiltrotor aircraft) (Air Force - Enlisted)
  • Aerospace Propulsion Journeyman, F100, F101, F110, F118, F119, F135 Jet Engines (Air Force - Enlisted)
  • Aerospace Propulsion Journeyman, TF33, CF6, F103, F108, F117, TFE-731, TF39, PW 2040, F138 Jet Engines (Airlift, Special Mission, and B-52 aircraft) (Air Force - Enlisted)
  • Aerospace Propulsion Journeyman, Turboprop andTurboshaft Propulsion (helicopter, propeller, tiltrotor aircraft) (Air Force - Enlisted)
  • Aerospace Propulsion Superintendent (Air Force - Enlisted)
  • Afloat Support Equipment Technician (Navy - Enlisted)
  • Air and Missile Defense (AMD) Systems Tactician (Army - Warrant Officer only)
  • Air and Missile Defense (AMD) Systems Technician (Army - Warrant Officer only)
  • Aircraft Intermediate Maintenance Officer, Support Equipment (Navy - Commissioned or Warrant Officer)
  • Aircraft Maintenance (Rotary-Wing) (Marine Corps - Enlisted)
  • Aircraft Powerplant Repairer (Army - Enlisted)
  • ALCO (251C), and General Motors EMD (645) Diesel Engine Technician (Navy - Enlisted)
  • Armor Marine (Marine Corps - Enlisted)
  • Ashore Maintenance Crane Intermediate Maintenance Technician (Navy - Enlisted)
  • Assault Amphibious Vehicle (AAV) Crewmember (Marine Corps - Enlisted)
  • Assault Amphibious Vehicle (AAV)/Assault Combat Vehicle (ACV) Repairer/Technician (Marine Corps - Enlisted)
  • Assault Breacher Vehicle/Joint Assault Bridge (JAB) Mechanic (Marine Corps - Enlisted)
  • Automotive Intermediate Maintenance Technician (Marine Corps - Enlisted)
  • Automotive Maintenance Technician (Marine Corps - Enlisted)
  • Automotive Maintenance Warrant Officer (Army - Warrant Officer only)
  • Auxiliary Equipment Technician (Navy - Enlisted)
  • Aviation Machinist's Mate (Navy - Enlisted)
  • Aviation Support Equipment Technician (Navy - Enlisted)
  • Basic Aircraft Maintenance (Rotory-Wing) (Marine Corps - Enlisted)
  • Basic Motor Transport Marine (Marine Corps - Enlisted)
  • Battle Force Intermediate Maintenance Activity (BFIMA) Governor and Injector Repair Technician (Navy - Enlisted)
  • BFIMA Diesel Engine, Governor and Injector Repair Tech, LSD-41 Class Propulsion Specialization (Navy - Enlisted)
  • BRADLEY Fighting Vehicle System Maintainer (Army - Enlisted)
  • BRADLEY Fighting Vehicle System Mechanic (Army - Enlisted)
  • Cannon Crewmember (Army - Enlisted)
  • Caterpillar 3500B Electronically-Controlled Engine Technician (Navy - Enlisted)
  • Caterpillar Diesel Technician (Navy - Enlisted)
  • Caterpillar Electronically Controlled Engine Technician (Navy - Enlisted)
  • Cavalry Scout (Army - Enlisted)
  • Combat Engineer (Army - Enlisted)
  • Construction Equipment Repairer (Army - Enlisted)
  • Construction Mechanic (Navy - Enlisted)
  • Conversion NEC AS Aviation Support Equipment Technician Basic (Navy - Enlisted)
  • Conversion NEC CM Construction Mechanic Basic (Navy - Enlisted)
  • Crash/Fire/Rescue Vehicle Mechanic (Marine Corps - Enlisted)
  • Crash/Fire/Rescue Vehicle Technician (Marine Corps - Enlisted)
  • Cummins and Steyr Diesel Engines Technician (Navy - Enlisted)
  • Cummins Diesel Engines Technician (Navy - Enlisted)
  • Diesel Engine Systems Maintainer (Navy - Enlisted)
  • Diesel Engine Systems Manager (Navy - Enlisted)
  • Diesel Engine Systems Technician (Navy - Enlisted)
  • Diesel-Electric Locomotive Repairman (Army - Enlisted)
  • Engineer Equipment Chief (Marine Corps - Enlisted)
  • Engineer Equipment Maintenance Warrant Officer (Army - Warrant Officer only)
  • Engineer Equipment Mechanic (Marine Corps - Enlisted)
  • Engineer Equipment Operator (Marine Corps - Enlisted)
  • Engineman (Navy - Enlisted)
  • Enlisted Aircrew/Aerial Observer/Gunner (Marine Corps - Enlisted)
  • Expeditionary Fighting Vehicle (EFV) Repairer/Technician (Marine Corps - Enlisted)
  • Fairbanks Morse (38D 8-1/8) and Colt Pielstick (PC2.5V) Diesel Engine Technician (Navy - Enlisted)
  • Field Artillery (FA) Weapons Locating Radar (WLR) Specialist (Army - Enlisted)
  • Fire Control Specialist (Army - Enlisted)
  • Fixed-Wing Aircraft Crew Chief, C-40A (Marine Corps - Enlisted)
  • Fixed-Wing Aircraft Loadmaster, C-40A (Marine Corps - Enlisted)
  • Fuel and Electrical Systems Mechanic (Marine Corps - Enlisted)
  • Gas Turbine System Technician (Navy - Enlisted)
  • General Dynamics (GD) Littoral Combat Ship (LCS) Core Crew Mission Specialist (Navy - Enlisted)
  • General Purpose Vehicle Maintenance (Air Force - Enlisted)
  • General Purpose Vehicle Maintenance Apprentice (Air Force - Enlisted)
  • General Purpose Vehicle Maintenance Helper (Air Force - Enlisted)
  • General Purpose Vehicle Maintenance Journeyman (Air Force - Enlisted)
  • Heavy Ordnance Vehicle Repairer/Technician (Marine Corps - Enlisted)
  • Heavy Wheel Vehicle Mechanic (Army - Enlisted)
  • Helicopter Airframe Mechanic, CH-53 (Marine Corps - Enlisted)
  • Helicopter Airframe Mechanic, UH/AH-1 (Marine Corps - Enlisted)
  • Helicopter Crew Chief, CH-53 (Marine Corps - Enlisted)
  • Helicopter Crew Chief, UH-1 (Marine Corps - Enlisted)
  • Helicopter Mechanic, CH-53 (Marine Corps - Enlisted)
  • Helicopter Mechanic, UH/AH-1 (Marine Corps - Enlisted)
  • Helicopter Power Plants Mechanic, T-400/T-700 (Marine Corps - Enlisted)
  • Helicopter Power Plants Mechanic, T-58 (Marine Corps - Enlisted)
  • Helicopter Power Plants Mechanic, T-64 (Marine Corps - Enlisted)
  • Helicopter/Tiltrotor Dynamic Components Mechanic (Marine Corps - Enlisted)
  • Helicopter/Tiltrotor Mechanic-Trainee (Marine Corps - Enlisted)
  • Landing Craft Air Cushion Deck Engineer (Navy - Enlisted)
  • Landing Platform Dock -17 Class Diesel Engine Technician (Navy - Enlisted)
  • LCAC Craft Engineer/Assistant Operator (Navy - Enlisted)
  • Light Armored Vehicle (LAV) Repairer/Technician (Marine Corps - Enlisted)
  • Lockheed Martin (LM) Littoral Combat Ship (LCS) Core Crew Mission Specialist (Navy - Enlisted)
  • Locomotive Repairer (RC) (Army - Enlisted)
  • Logistics Vehicle System Mechanic (Marine Corps - Enlisted)
  • LPD-17 Class Diesel Engine Technician (Navy - Enlisted)
  • LSD 41/49 Class Colt Pielstick Maintainer (Navy - Enlisted)
  • LSD-41 Class Propulsion System Technician (Navy - Enlisted)
  • LSD-41 Class Propulsion Technician (Navy - Enlisted)
  • LSD-41/49 Class Advanced Engineering Control System-Machinery Control System (AECS-MCS) Propulsion Systems Technician (Navy - Enlisted)
  • M1 Abrams Tank System Maintainer (Army - Enlisted)
  • M1 ABRAMS Tank System Mechanic (Army - Enlisted)
  • M60A1/A3 Tank System Mechanic (Army - Enlisted)
  • Machinery Repairman Apprentice (Navy - Enlisted)
  • Machinery Repairman Journeyman (Navy - Enlisted)
  • Machinery Technician (Coast Guard - Enlisted)
  • Machinist's Mate (Navy - Enlisted)
  • Machinists Mate, Non-Nuclear, Submarine Auxiliary (Navy - Enlisted)
  • Maintenance Supervisor (Army - Enlisted)
  • Marine Safety Specialist Engineer (Coast Guard - Warrant Officer only)
  • MCM 1and2 Propulsion Technician (Navy - Enlisted)
  • MCM Propulsion Technician (Navy - Enlisted)
  • Mission Generation Vehicular Equipment Maintenance (Air Force - Enlisted)
  • Mission Generation Vehicular Equipment Maintenance (Space Force - Enlisted)
  • Mission Generation Vehicular Equipment Maintenance Apprentice (Air Force - Enlisted)
  • Mission Generation Vehicular Equipment Maintenance Apprentice (Space Force - Enlisted)
  • Mission Generation Vehicular Equipment Maintenance Apprentice, Firefighting and Refueling Vehicle and Equipment Maintenance (Air Force - Enlisted)
  • Mission Generation Vehicular Equipment Maintenance Craftsman (Air Force - Enlisted)
  • Mission Generation Vehicular Equipment Maintenance Helper (Air Force - Enlisted)
  • Mission Generation Vehicular Equipment Maintenance Helper (Space Force - Enlisted)
  • Mission Generation Vehicular Equipment Maintenance Helper, Firefighting and Refueling Vehicle and Equipment Maintenance (Air Force - Enlisted)
  • Mission Generation Vehicular Equipment Maintenance Journeyman (Air Force - Enlisted)
  • Mission Generation Vehicular Equipment Maintenance Journeyman (Space Force - Enlisted)
  • Mission Generation Vehicular Equipment Maintenance Journeyman, Firefighting and Refueling Vehicle and Equipment Maintenance (Air Force - Enlisted)
  • Mission Generation Vehicular Equipment Maintenance Journeyman, Firefighting and Refueling Vehicle and Equipment Maintenance (Space Force - Enlisted)
  • Mission Generation Vehicular Equipment Maintenance, Apprentice, Material Handling Equipment (MHE)/463L Maintenance (Air Force - Enlisted)
  • Mission Generation Vehicular Equipment Maintenance, Helper, Material Handling Equipment (MHE)/463L Maintenance (Air Force - Enlisted)
  • Mission Generation Vehicular Equipment Maintenance, Journeyman, Material Handling Equipment (MHE)/463L Maintenance (Air Force - Enlisted)
  • Mobile Facility Technician (Marine Corps - Enlisted)
  • Motor Transport Maintenance Chief (Marine Corps - Enlisted)
  • Motor Transport Officer (Marine Corps - Warrant Officer only)
  • Motor Vehicle Operator (Marine Corps - Enlisted)
  • MTU 2000 Series Diesel Engine Technician (Navy - Enlisted)
  • MTU Diesel Technician (Navy - Enlisted)
  • Multiple Launch Rocket System (MLRS)/High Mobility Artillery Rocket System (HIMARS) Crewmember (Army - Enlisted)
  • NAMTS Diesel Engine, Governor and Injector Repair Technician, ALCO (251C) and General Motors EMD (645) Specialization (Navy - Enlisted)
  • NAMTS Diesel Engine, Governor and Injector Repair Technician, Fairbanks Morse (38D 8-1/8) and Colt Pielstick (PC2.5V) Specialization (Navy - Enlisted)
  • NAMTS Diesel Engine, Governor and Injector Repair Technician, FFG-7 Class Auxiliaries Mechanical System Specialization (Navy - Enlisted)
  • NAMTS Diesel Engine, Governor and Injector Repair Technician, MCM Propulsion (Isotta Franchini/SOLAR) Specialization (Navy - Enlisted)
  • NAMTS Diesel Engine, Governor, and Injector Repair Technician (Navy - Enlisted)
  • NAMTS Inside Machinist (Navy - Enlisted)
  • NAMTS Outside Machinist (Navy - Enlisted)
  • Naval Engineering Specialty (Coast Guard - Warrant Officer only)
  • Naval Special Warfare (NSW), Combatant-Craft Assault Support Engineer (Navy - Enlisted)
  • Naval Special Warfare (NSW), Combatant-Craft Heavy Support Engineer (Navy - Enlisted)
  • Naval Special Warfare (NSW), Combatant-Craft Medium Support Engineer (Navy - Enlisted)
  • Naval Special Warfare (NSW), Special Operation Craft Riverine (SOCR) Support Engineer (Navy - Enlisted)
  • Night Systems Instructor (NSI) Enlisted Aircrew (Marine Corps - Enlisted)
  • Ordnance Vehicle Maintenance Chief (Marine Corps - Enlisted)
  • Ordnance Vehicle Maintenance Officer (Marine Corps - Warrant Officer only)
  • PATRIOT Launching Station Enhanced Operator/Maintainer (Army - Enlisted)
  • PAXMAN Valenta Diesel Engine Operator (Navy - Enlisted)
  • Petroleum Supply Specialist (Army - Enlisted)
  • Petroleum Systems Technician (Army - Warrant Officer only)
  • Power-Generation Equipment Repairer (Army - Enlisted)
  • Quartermaster and Chemical Equipment Repairer (Army - Enlisted)
  • SE Hydraulic Intermediate Maintenance Technician (Navy - Enlisted)
  • Self Propelled Artillery Systems Mechanic (Army - Enlisted)
  • Senior Armor SNCO (Marine Corps - Enlisted)
  • Senior Automotive Maintenance Warrant Officer/Senior Ordnance Logistics Warrant Officer (Army - Warrant Officer only)
  • Senior Maintenance Supervisor (Army - Enlisted)
  • Small Craft Mechanic (Marine Corps - Enlisted)
  • Special Vehicle Maintenance (Air Force - Enlisted)
  • Special Vehicle Maintenance Journeyman, Fire Fighting Vehicles (Air Force - Enlisted)
  • Special Vehicle Maintenance Journeyman, Refueling Vehicles (Air Force - Enlisted)
  • SSN 719-725 and 750 Submarine Vertical Launch System Tube Maintenance Technician (Navy - Enlisted)
  • SSN/SSBN Diesel Engine (Fairbanks-Morse) Maintenance Technician (Navy - Enlisted)
  • Steering Gear Systems Mechanical Technician (Navy - Enlisted)
  • STRYKER Systems Maintainer (Army - Enlisted)
  • Support Equipment Electrician/Refrigeration and Engine/Gas Turbine Technician (Marine Corps - Enlisted)
  • Support Equipment Gas Turbine Mechanic (Navy - Enlisted)
  • Support Equipment Tow Tractor Technician (Navy - Enlisted)
  • Tactical Power Generation Specialist (Army - Enlisted)
  • Tiltrotor Airframe Mechanic, MV-22 (Marine Corps - Enlisted)
  • Tiltrotor Crew Chief, MV-22 (Marine Corps - Enlisted)
  • Tiltrotor Mechanic, MV-22 (Marine Corps - Enlisted)
  • Torpedoman's Mate (Navy - Enlisted)
  • Track Vehicle Repairer (Army - Enlisted)
  • Tracked Vehicle Repairer (Army - Enlisted)
  • Vehicle Management Manager (Air Force - Enlisted)
  • Vehicle Management Superintendent (Air Force - Enlisted)
  • Vehicle Recovery Mechanic (Marine Corps - Enlisted)
  • VH-60N Presidential Helicopter Crew Chief (Marine Corps - Enlisted)
  • VH-92 Presidential Helicopter Crew Chief (Marine Corps - Enlisted)
  • Watercraft Engineer (Army - Enlisted)
  • Weapons and Tactics Crew Chief Instructor (Marine Corps - Enlisted)
  • Wheel Vehicle Repairer (Army - Enlisted)
  • Wheeled Vehicle Mechanic (Army - Enlisted)

Apprenticeship Crosswalk Titles

  • Diesel Mechanic (Alternate Title: Power-Generation Equipment Repairer)
  • Machinist, Marine Engine
  • Maint Mechanic (Const; Petrol) (Alternate Title: Heavy-Wheel Vehicle Mechanic )
  • Mechanic, Industrial Truck (Alternate Titles: Diesel Mech/Power-Gen Equip Rep)
  • Oil Field Equip Mechanic
  • Tractor Mechanic

DOT Crosswalk Titles

  • Deep Submergence Vehicle Crewmember
  • Diesel Mechanic
  • Diesel-Mechanic Apprentice
  • Machinist Apprentice, Marine Engine
  • Machinist, Marine Engine
  • Maintenance Mechanic
  • Maintenance Mechanic, Engine
  • Mechanic, Industrial Truck
  • Oil-Field Equipment Mechanic
  • Tractor Mechanic