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A diesel mechanic is a skilled technician responsible for the checking, maintenance, and repair of diesel engines. Diesel mechanics duties also include regular inspections of vehicles upon customer's request to ensure the smooth performance of the machine, communicate on any system issue that might cause malfunctions, and provide any replacement to renovate a damaged part of the engine. A diesel mechanic must be highly-knowledgeable on everything related to diesel engines to provide the best, long-term solutions for the customers.

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Diesel Mechanic Responsibilities

Here are examples of responsibilities from real diesel mechanic resumes representing typical tasks they are likely to perform in their roles.

  • Repair diesel engines; replace clutches, water pumps, turbo, alternators, brakes and HVAC.
  • Weld parts using both MIG and TIG welders as needed for repairs to trucks and trailers.
  • Supervise qualified soldiers that run an unschedule side of a maintenance shop that perform on the spot repairs.
  • Truck alignments, brakes, suspensions, drive train, engines, engine diagnostics, and electrical, HVAC.
  • Total truck and trailer repair; involve welding; torch; plasma; aluminum welding; stick and MIG welding
  • Oil changes, wiring, troubleshoot hydraulic problems, replace fuel injection pumps, change tires and repair brake systems.
  • Complete dot forms.-use various forklifts to unload and load trucks coming into the yard.-Completed maintenance on all forklifts on a bi-weekly basis
  • Display mental toughness and stamina to easily deal with continuous short notice requirements, while completing a wide variety of tasks.
  • Authorize Cummins diesel engine mechanic.
  • Complete diagnosis and repair to refrigeration components.
  • Provide mechanical diagnosis and repairs on customer vehicles.
  • Train on crane operation, computer diagnostics and hydraulic operations.
  • Identify potential safety hazards with an in-depth understanding of OSHA regulations.
  • Inspect pulleys, bearings, mounts, tires, seat belts, rails, for wear, security and general condition.
  • Repair carburetors, replace pulleys, baring's in spindles, sharpen blades, fix tires, and fix broken electric lines

Diesel Mechanic Job Description

Perhaps the hardest question to answer when deciding on a career as a Diesel Mechanic is "should I become a Diesel Mechanic?" You might find this info to be helpful. When compared to other jobs, Diesel Mechanic careers are projected to have a growth rate described as "as fast as average" at 5% from 2018 through 2028. This is in accordance with the Bureau of Labor Statistics. What's more, is that the projected number of opportunities that are predicted to become available for a Diesel Mechanic by 2028 is 13,800.

On average, the Diesel Mechanic annual salary is $48,174 per year, which translates to $23.16 an hour. Generally speaking, Diesel Mechanics earn anywhere from $36,000 to $63,000 a year, which means that the top-earning Diesel Mechanics make $27,000 more than the ones at the lower end of the spectrum.

As is the case with most jobs, it takes work to become a Diesel Mechanic. Sometimes people change their minds about their career after working in the profession. That's why we looked into some other professions that might help you find your next opportunity. These professions include an Automotive Service Technician, Auto Technician, Mechanic Helper, and Heavy Equipment Mechanic.

Diesel Mechanic Jobs You Might Like

12 Diesel Mechanic Resume Examples

Diesel Mechanic Skills and Personality Traits

We calculated that 21% of Diesel Mechanics are proficient in CDL, Preventive Maintenance, and DOT. They’re also known for soft skills such as Customer-service skills, Detail oriented, and Dexterity.

We break down the percentage of Diesel Mechanics that have these skills listed on their resume here:

  • CDL, 21%

    Possess NJ CDL Bus license and Certified Preventative Maintenance Inspector through First Student.

  • Preventive Maintenance, 12%

    Perform wheeled vehicle recovery operations and keep equipment operational by completing preventive maintenance requirements and troubleshoot malfunctions when they occur.

  • DOT, 12%

    Performed DOT Qualified Inspections*performed scheduled maintenance on tractors and trailers*inspected, maintained, and repaired vehicles and machinery used in transportation.

  • Hand Tools, 9%

    Dismantled electronic equipment and removed faulty components for repair using hand tools.

  • Heavy Equipment, 7%

    Assume responsibility for the timely and effective performance of maintenance procedures on heavy equipment.

  • Osha, 5%

    Utilized OSHA safety procedures and hazardous material regulations on a daily basis.

"CDL," "Preventive Maintenance," and "DOT" aren't the only skills we found Diesel Mechanics list on their resumes. In fact, there's a whole list of Diesel Mechanic responsibilities that we found, including:

  • Arguably the most important personality trait for a Diesel Mechanic to have happens to be Customer-service skills. An example from a resume said this about the skill, "Diesel technicians frequently discuss automotive problems and necessary repairs with their customers" Additionally, other resumes have pointed out that Diesel Mechanics can use Customer-service skills to "Address customers complaints and concerns, repair and diagnose Cummins engines"
  • Another trait important for fulfilling Diesel Mechanic duties is Detail oriented. According to a Diesel Mechanic resume, "Diesel technicians must be aware of small details when inspecting or repairing engines and components, because mechanical and electronic malfunctions are often due to misalignments and other easy-to-miss causes." Here's an example of how Diesel Mechanics are able to utilize Detail oriented: "Pull trucks in and out of shop Perform warranty work on Cummins and Freightliner Wash and detail trucks"
  • Dexterity is also an important skill for Diesel Mechanics to have. This example of how Diesel Mechanics use this skill comes from a Diesel Mechanic resume, "Mechanics need a steady hand and good hand–eye coordination for many tasks, such as disassembling engine parts, connecting or attaching components, and using hand tools." Read this excerpt from a resume to understand how vital it is to their everyday roles and responsibilities, "Service all rental equipment such as boom lifts, scissors lift, backhoes, air compressors etc. "
  • In order for certain Diesel Mechanic responsibilities to be completed, the job requires the skill "Mechanical skills." According to a Diesel Mechanic resume, "Diesel technicians must be familiar with engine components and systems and know how they interact with each other" As an example, this snippet was taken directly from a resume about how this skill applies: "Rebuild engines, transmission, compressors, master cylinders, wheel cylinders, hydraulic cylinders, and other mechanical components. "
  • Another common skill for a Diesel Mechanic to be able to utilize is "Organizational skills." Diesel technicians must keep workspaces clean and organized in order to maintain safety and accountability for parts. A Diesel Mechanic demonstrated the need for this skill by putting this on their resume: "Diagnose and repair failures of automotive mechanical and electrical systems Modify work procedures/processes to meet deadlines Analyze organizational operating practices or procedures"
  • Another skill commonly found on Diesel Mechanic resumes is "Physical strength." This description of the skill was found on several Diesel Mechanic resumes: "Diesel technicians often lift heavy parts and tools, such as exhaust system components and pneumatic wrenches." Here's an example from a resume of how this skill could fit into the day-to-day Diesel Mechanic responsibilities: "Make thorough visual and physical inspection of all safety appliances and other equipment, and make necessary repairs. "
  • See the full list of Diesel Mechanic skills.

    Those Diesel Mechanics who do attend college, typically earn either a Automotive Technology degree or a Business degree. Less commonly earned degrees for Diesel Mechanics include a General Studies degree or a Industrial Technology degree.

    Once you're ready to become a Diesel Mechanic, you should explore the companies that typically hire Diesel Mechanics. According to Diesel Mechanic resumes that we searched through, Diesel Mechanics are hired the most by Carvana, Nuss Truck & Equipment, and Ryder System. Currently, Carvana has 979 Diesel Mechanic job openings, while there are 492 at Nuss Truck & Equipment and 489 at Ryder System.

    If you're interested in companies where Diesel Mechanics make the most money, you'll want to apply for positions at Hensel Phelps, Southeastern Freight Lines, and Estes Express Lines. We found that at Hensel Phelps, the average Diesel Mechanic salary is $63,638. Whereas at Southeastern Freight Lines, Diesel Mechanics earn roughly $60,953. And at Estes Express Lines, they make an average salary of $60,922.

    View more details on Diesel Mechanic salaries across the United States.

    The industries that Diesel Mechanics fulfill the most roles in are the Transportation and Manufacturing industries. But the highest Diesel Mechanic annual salary is in the Transportation industry, averaging $48,193. In the Utilities industry they make $46,407 and average about $46,243 in the Manufacturing industry. In conclusion, Diesel Mechanics who work in the Transportation industry earn a 9.3% higher salary than Diesel Mechanics in the Retail industry.

    The three companies that hire the most prestigious diesel mechanics are:

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    What Automotive Service Technicians Do

    Automotive service technicians, often called service technicians, have a duty to inspect, maintain, and repair cars and even light trucks. It is their job as automotive service technicians to find problems, often by computerized diagnostic equipment. They do test parts and systems to guarantee that they work properly and follow checklists to ensure that every critical part is examined. Performing basic care and maintenance is also part of their main tasks, including changing oil, rotating tires, and checking fluid levels.

    We looked at the average Diesel Mechanic annual salary and compared it with the average of an Automotive Service Technician. Generally speaking, Automotive Service Technicians receive $1,467 lower pay than Diesel Mechanics per year.

    Even though Diesel Mechanics and Automotive Service Technicians have vast differences in their careers, a few of the skills required to do both jobs are similar. For example, both careers require Preventive Maintenance, Hand Tools, and Electrical Systems in the day-to-day roles.

    There are some key differences in responsibilities as well. For example, a Diesel Mechanic responsibilities require skills like "CDL," "DOT," "Heavy Equipment," and "Osha." Meanwhile a typical Automotive Service Technician has skills in areas such as "Customer Service," "ASE," "Automotive Repair," and "Vehicle Inspections." This difference in skills reveals how truly different these two careers really are.

    On average, Automotive Service Technicians reach similar levels of education than Diesel Mechanics. Automotive Service Technicians are 0.3% more likely to earn a Master's Degree and 0.0% less likely to graduate with a Doctoral Degree.

    What Are The Duties Of an Auto Technician?

    An auto technician specializes in performing inspections, repairs, and maintenance on different automotive vehicles ranging from small cars to light trucks. Their responsibilities revolve around identifying issues using various diagnostic tools to determine which course of action to take, discussing the extent of repairs to clients, and ordering car parts from suppliers. There are also instances when an auto technician may have the task of maintaining the cleanliness of the workplace, or participate in record-keeping and monitoring the inventory.

    Next up, we have the Auto Technician profession to look over. This career brings along a lower average salary when compared to a Diesel Mechanic annual salary. In fact, Auto Technicians salary difference is $9,346 lower than the salary of Diesel Mechanics per year.

    While the salary may be different for these job positions, there is one similarity and that's a few of the skills needed to perform certain duties. We used info from lots of resumes to find that both Diesel Mechanics and Auto Technicians are known to have skills such as "Preventive Maintenance," "Hand Tools," and "Electrical Systems. "

    But both careers also use different skills, according to real Diesel Mechanic resumes. While Diesel Mechanic responsibilities can utilize skills like "CDL," "DOT," "Heavy Equipment," and "Osha," some Auto Technicians use skills like "Customer Vehicles," "Customer Service," "ASE," and "Diagnostic Devices."

    In general, Auto Technicians study at similar levels of education than Diesel Mechanics. They're 0.6% more likely to obtain a Master's Degree while being 0.0% more likely to earn a Doctoral Degree.

    How a Mechanic Helper Compares

    The job of a mechanic helper is to support lead mechanics and perform a variety of duties and responsibilities. You will be assisting in the maintenance of cars, such as changing tires and oils, replacing brakes, and diagnosing vehicle issues. In addition, you will be responsible for logging labor costs and inventory use and take vehicles for test drives. Other duties include replacing belts and hoses, assisting the lead mechanic in major projects, and repairing and maintaining cars.

    The third profession we take a look at is Mechanic Helper. On an average scale, these workers bring in lower salaries than Diesel Mechanics. In fact, they make a $20,696 lower salary per year.

    While looking through the resumes of several Diesel Mechanics and Mechanic Helpers we discovered that both professions have similar skills. These similarities include skills such as "Preventive Maintenance," "Hand Tools," and "Heavy Equipment," but they differ when it comes to other required skills.

    There are many key differences between these two careers as shown by resumes from each profession. Some of those differences include the skills required to complete responsibilities within each role. As an example of this, a Diesel Mechanic is likely to be skilled in "CDL," "DOT," "Osha," and "Diagnosis," while a typical Mechanic Helper is skilled in "Safety Rules," "Job Sites," "Safety Procedures," and "Mechanical Repairs."

    When it comes to education, Mechanic Helpers tend to earn similar education levels than Diesel Mechanics. In fact, they're 0.5% less likely to earn a Master's Degree, and 0.0% less likely to graduate with a Doctoral Degree.

    Description Of a Heavy Equipment Mechanic

    A heavy equipment mechanic is responsible for operating the heavy machinery used in the production of various industries, inspecting inconsistencies, running diagnostic tests, and replacing defective components to ensure its operational safety and efficiency. Heavy equipment mechanics also upgrade engine systems to boost optimal performance, analyze damage costs, and repair equipment parts with the assistance of other mechanical staff. They work closely with the management, create maintenance reports, and suggesting resolutions to avoid delays in production and customer service.

    Heavy Equipment Mechanics tend to earn a higher pay than Diesel Mechanics by about $1,021 per year.

    While their salaries may vary, Diesel Mechanics and Heavy Equipment Mechanics both use similar skills to perform their jobs. Resumes from both professions include skills like "CDL," "Preventive Maintenance," and "Hand Tools. "

    While some skills are shared by these professions, there are some differences to note. "DOT," "Diagnosis," "Maintenance Services," and "Shop Equipment" are skills that have shown up on Diesel Mechanics resumes. Additionally, Heavy Equipment Mechanic uses skills like Forklifts, Excavators, Dozers, and Backhoe on their resumes.

    In general, Heavy Equipment Mechanics make a higher salary in the Manufacturing industry with an average of $56,539. The highest Diesel Mechanic annual salary stems from the Transportation industry.

    The average resume of Heavy Equipment Mechanics showed that they earn similar levels of education to Diesel Mechanics. So much so that the likelihood of them earning a Master's Degree is 0.2% more. Additionally, they're less likely to earn a Doctoral Degree by 0.0%.

    What a Diesel Mechanic Does FAQs

    Is a diesel mechanic a good career?

    Yes, being a diesel mechanic is generally a good career. This evaluation is due to a decent salary and employment growth.

    The median annual wage is around $50,000, and some employers and industries pay more than that. So, there is good potential earning if you stick with the career. Also, according to the U.S. Bureau of Labor Statistics, employment of diesel mechanics is expected to grow during this decade.

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