Diesel Mechanic Job Description: Top Duties and Requirements

A Diesel Mechanic, or Mechanic, is responsible for inspecting, repairing, and maintaining any type of diesel engine. Their duties include adjusting equipment to repair or replace defective parts, diagnosing faults or malfunctions using testing equipment, and cleaning or performing maintenance work.


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Diesel Mechanic duties and responsibilities

When writing a job description for a Diesel Mechanic, it is important to specify the duties and responsibilities to excel in the role, including:

  • Adjusting equipment and repairing or replacing any defective parts
  • Cleaning, lubricating, and performing other maintenance work
  • Diagnosing malfunctions or problems using a computerized system or testing equipment to determine the root cause of any issues
  • Repairing and verifying any emission control systems
  • Meeting with customers to explain problems and possible solutions
  • Carrying out any repairs as needed to replace the transmission or other damaged parts
  • Working with specialized machinery such as combines or tracked vehicles 
  • Understanding the inner workings of various machines such as bulldozers, cranes, graders, logging equipment, mining equipment, or farming equipment


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Diesel Mechanic Job Description Examples:


Example 1

Great company. Great people. Great opportunities. As a Field Service Tech IV at United Rentals, you’ll use your skills to perform maintenance and repairs of complex equipment with limited or no supervision in a highly skilled, safe, and professional manner. Every day, you can improve and challenge yourself, and if you have the desire and ambition, you’ll have the potential to work towards leadership roles in our Service Department. Like every member of our team, we will rely on you to provide exceptional customer service to our customers. If you would enjoy the chance to make your mark with the world’s largest equipment rental provider, consider a future with United Rentals. You will be supported by a strong management team that will help you achieve your goals. Plus, you will have the opportunity to relocate to one of our 1,000+ locations. Additional duties include the following: Maintenance and repair of complex mechanical, electrical, hydraulic, and diesel systems on a variety of rental and customer equipment and tools while using a high degree of independent judgment Travel to customer job sites for repair/maintenance of rental or customer owned equipment; must maintain service vehicle in a clean and professional manner Assist in the training of lower level technicians as needed Maintain documentation of work performed (work orders) in a complete and timely manner on a daily basis Assist with pick-up and delivery of equipment & parts Other duties assigned as needed Job Requirements: High School diploma or equivalent Valid driver's license with acceptable driving record 5+ years of experience equipment and tools Advanced mechanical aptitude and working knowledge of tools Extensive knowledge of construction equipment with an advanced understanding of schematics and diagrams Must own tools applicable to position Superior customer service, teamwork and verbal/written communication skills Ability to frequently lift items up to 45 lbs. At United Rentals, the largest equipment rental company, we believe that it takes great employees to build a great organization – and we’re passionate about helping our people grow professionally and embrace teamwork in everything they do. Our culture is based on our corporate values and centers on mutual respect, job satisfaction, diversity and a shared responsibility to build a better future. What's in it for you? [website] Full Time roles : Best in class benefits offering includes medical, dental, vision, flex spending and health savings accounts; 401(k) retirement with company match; life and disability insurance; and paid time off including sick, vacation, holidays, and paid parental leave. Comprehensive training and development and career growth opportunities. [website] Part Time roles: Benefits offering includes 401(k) retirement with company match/RRSP; paid time off including sick, vacation and holidays; and comprehensive training and development and career growth opportunities. Canada: Best in class benefits package which includes medical, dental & vision, RRSP/DPSP*, paid time off, comprehensive training and development, and career growth opportunities. *Offered for full time roles, part time eligibility in select provinces United Rentals, Inc. is an Equal Opportunity Employer of women, minorities, protected veterans and individuals with disabilities.

Example 2

Under the responsibility of the General Manager of Maintenance, the candidate will be responsible for inspecting, diagnosing, carrying out repairs and determining the nature of breakdowns and breakdowns on the trucks. The technician will follow all preventive maintenance practices for the fleet. He must adjust and repair equipment, replace defective parts or components using manual and mechanical tools. He must ensure that the repairs meet the requirements of the manufacturer and the Ministry of Transport. *Role* - Perform the different types of inspections on equipment without supervision. - Detect and diagnose problems of all kinds. - Clean and lubricate equipment and trucks. - Repair problems within the prescribed time. - Carry out major and minor repairs such as engine, transmission, brakes, suspension, lights, etc. - Test repaired equipment and make sure it is functioning properly. *Skills* - Must be able to diagnose and repair any Class 8 truck - Must be able to work safely in a pressurized environment - Must be able to present himself in a positive and professional manner - Ability to communicate clearly and read and understand technical documents in English - Ability to effectively present information and answer questions from colleagues and managers - Ability to define problems, collect data, establish facts and draw conclusions - Basic computer skills (knowledge of MIR an asset) *Requirements* - Heavy truck technician or mechanic certificate / attestation - Minimum of 5 years of relevant experience in a similar position - Diesel mechanical knowledge (and natural gas, an asset) Expected start date: [phone number]12-06 Job Types: Full-time, Permanent Benefits: * Casual dress * Company events * Dental care * Employee assistance program * Extended health care * On-site parking * Profit sharing * RRSP match * Store discount * Wellness program Schedule: * 8 hour shift * Day shift * Monday to Friday Ability to * Alexandria, ON: reliably commute or plan to relocate before starting work (required) Education: * AEC / DEP or Skilled Trade Certificate (preferred) Experience: * Mechanic: 2 years (preferred) Language: * French (preferred) * English (preferred) * Class A Licence (preferred) Work remotely: * No

Example 3

* * The duties listed below are intended only as illustrations of the various types of work that may be performed. The omission of specific statements of duties does not exclude them from the position if the work is similar, related, or a logical assignment to the position. * Performs preventative and predictive maintenance and repairs on company mobile and stationary equipment. * Diagnoses and troubleshoots equipment problems and determines repairs needed. * Repairs, overhauls, maintain, and services on company mobile and stationary equipment. * Repairs, overhauls, maintains, and services fuel injection systems, exhaust systems, cooling systems, air conditioning systems, lubrication systems, engine control systems, major internal engine repairs or overhauls, installation, and alignment of engines and machinery. * Repairs, overhauls, maintains and services drive trains and final drives, hydraulic transmissions, power take-offs, tracked vehicle suspensions and steering, vehicle brake systems, wheel-mounted vehicle suspension, and steering. * Cleans lubricates and performs other maintenance work. * Determines the extent of repairs required. * Adjusts equipment and repair or replace defective parts. * Performs daily safety and maintenance checks. * Tests repaired equipment for proper maintenance. * Communicates the order of material/ parts required to complete repairs. * Selects the appropriate tools, machines, and materials to be used in the preparation for the work. * Operates all tools and equipment in accordance with CDLP safe work practices and procedures. * Installs repaired parts into equipment or install new equipment. * Dismantles machines or equipment, using hand tools and power tools, in order to examine parts for defects and replace defective parts where needed. * Demonstrates continuous effort to improve operations, decrease turnaround times, and streamline work processes. * Maintains daily records, including maintenance reports and documentation. * May fill out permits on sites, when required. * Able to go out on service calls and operate CDLP service trucks in a safe manner according to CDLP driving policies and procedures. * Cleans up work areas, equipment, supplies, and materials. Applies standard housekeeping practices and procedures. * Responsible to ensure all work is completed in a safe manner according to CDLP policies and procedures. * Must wear, and participate in the ongoing training of, the required PPE for this position. * Responds to emergency situations as necessary. * May assist, lead and train, or instruct, others in the work. * Provide quality customer service to our external and internal customers. * Lead by example with integrity. * Other tasks and special projects as assigned by the direct supervisor. *Knowledge, Skills & Abilities: * * Knowledge of the practices, methods, techniques, tools, and equipment used in the performance of mechanic work as assigned. * Ability to troubleshoot and inspect equipment to detect faults and malfunctions. * Ability to adjust equipment and repair or replace defective parts. * Ability to test repaired equipment for proper performance. * Ability to analyze and problem solve. * Knowledge of record-keeping systems. * Knowledge of equipment cleaning standards and procedures. * Ability to operate and use required tools and equipment skillfully and safely. * Ability to coordinate workflow for multiple projects. * Knowledge of operation of company heavy equipment. * Able to lift and carry up to 50lbs. * Ability to work extended shifts, weekend work, and overtime as required. * Knowledge of HSE Manual, safety practices, safe work methods, and safety regulations pertaining to the work. * Ability to be fit tested for respirator equipment annually. * Ability to identify and implement effective courses of action to complete assigned work. * Ability to work with minimal supervision, follow instructions and provide feedback as required. * Ability to exercise independent judgment and initiative within established guidelines. * Ability to establish and maintain effective working relationships with those encountered in the course of the work. * Able to coordinate work assignments with other workers, divisions, or departments. *Education & Experience: * * Minimum High School Diploma or GED equivalent. * Minimum two (2) years of mechanic experience. * Licensed Mechanic Certification. * Provincial or Red Seal training certification preferred. * Working knowledge of Microsoft Office. * Mechanically inclined and willing to learn. * Pre-employment testing. * Clean drivers abstract. Job Types: Full-time, Permanent Salary: per year Benefits: * Dental care * Disability insurance * Extended health care * Life insurance * On-site parking * Vision care Schedule: * Day shift * Night shift * Weekend availability Work remotely: * No

What does a Diesel Mechanic do?

A Diesel Mechanic is responsible for the repair and maintenance of diesel engines, and most of them will work typically in automotive garages or repair shops. A Diesel Mechanic can work on anything from personal vehicles to large transport trucks. It is important for Diesel Mechanics to also perform tasks such as checking the batteries of a vehicle, inspecting other parts, adjusting the wheels of a vehicle, and ensuring any other malfunction is diagnosed.


Diesel Mechanic skills and qualifications

A successful Diesel Mechanic will have various prerequisite skills and qualifications required for the duties of this job, including:

  • Communication skills to speak with customers by telephone, email, or in-person
  • Strong knowledge of health and safety standards required for the role
  • Conflict resolution skills 
  • Ability to repeat the same or similar tasks multiple times a day
  • Excellent time management skills
  • Ability to work independently and as part of a team
  • Knowledge of basic math and computer skills


Diesel Mechanic experience requirements

Previous experience is generally preferable for Diesel Mechanics. Often, this experience can be as an apprentice or an assistant. For positions where experience is required, one to three years is rhe average. However, for Diesel Mechanic positions in small garages where no additional training is provided, five years of experience is preferred.


Diesel Mechanic education and training requirements

A Diesel Mechanic would generally have at least a high school diploma if they have received on-the-job training from a well-known garage. However, in most cases, job applicants should have a certification from an accredited college or apprenticeship program. In Quebec and Alberta, certification is required to handle any heavy-duty equipment. 

For a role that focuses on agricultural equipment, there is a voluntary certification available in Newfoundland and Labrador, Nova Scotia, Prince Edward Island, New Brunswick, Ontario, Manitoba, British Columbia, Saskatchewan, and Alberta. Job applicants can also hold Red Seal endorsement for working on heavy-duty or agricultural equipment.


Diesel Mechanic salary expectations

According to Indeed Salaries, the average salary for a Diesel Mechanic is $30.31 per hour. This can vary depending on experience, location, or company that is hiring.


Job description samples for similar positions

If a Diesel Mechanic is not what you are looking for, other related job descriptions include:


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Diesel Mechanic job description FAQs


Do Diesel Mechanics have different responsibilities in different industries?

The role of a Diesel Mechanic remains largely the same despite working in different industries. Primary responsibilities such as inspecting, diagnosing, and repairing equipment do not change regardless of the field. However, more certification or training may be required for Diesel Mechanics handling specialized equipment such as agricultural equipment or heavy-duty machinery.


What should you look for in a Diesel Mechanic resume?

When reviewing resumes for job applicants for a Diesel Mechanic position, it is important to look for someone who has the experience in fixing the right type of equipment. If the role is to be in an environment where interacting with customers is important, look for an applicant with previous experience in customer service or customer-facing positions. Also look for additional certification, such as Red Seal, that may also be required for the position as well.


What is the difference between a Diesel Mechanic and an Auto Mechanic?

While Diesel Mechanics and Auto Mechanics share similar responsibilities, there are key differences between them. A Diesel Mechanic will work on the diesel engines of trucks, large vehicles, or other specialized equipment. An Auto Mechanic is responsible for repairing various types of issues within a vehicle. As vehicles become more technologically advanced, Auto Mechanics are responsible for keeping up with these changes and knowing how to fix them.


How can you make your Diesel Mechanic job description stand out?

To make a Diesel Mechanic job description stand out, it is important to include the type of equipment that will need to be repaired. Including the salary and benefits for the position is another great way to make the description stand out.

Job Description Examples

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