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Diesel Mechanic Level 3 Jobs (NOW HIRING)

Diesel Mechanic

Green Bay, WI · On-site

$21 - $45/hr

Fleet Mechanic Level III will build on the duties from Diesel Mechanic I/II and become qualified as necessary with appropriate certifications to perform new technology evaluations, diagnosis, and ...

Diesel Mechanic

Morton, IL · On-site

$23.75 - $31.50/hr

Fleet Mechanic Level III will build on the duties from Diesel Mechanic I/II and become qualified as necessary with appropriate certifications to perform new technology evaluations, diagnosis, and ...

Fleet Mechanic Level III will build on the duties from Diesel Mechanic I/II and become qualified as necessary with appropriate certifications to perform new technology evaluations, diagnosis, and ...

Fleet Mechanic Level III will build on the duties from Diesel Mechanic I/II and become qualified as necessary with appropriate certifications to perform new technology evaluations, diagnosis, and ...

Diesel Mechanic

Green Bay, WI · On-site

$21 - $45/hr

Fleet Mechanic Level III will build on the duties from Diesel Mechanic I/II and become qualified as necessary with appropriate certifications to perform new technology evaluations, diagnosis, and ...

Fleet Mechanic Level III will build on the duties from Diesel Mechanic I/II and become qualified as necessary with appropriate certifications to perform new technology evaluations, diagnosis, and ...

Fleet Mechanic Level III will build on the duties from Diesel Mechanic I/II and become qualified as necessary with appropriate certifications to perform new technology evaluations, diagnosis, and ...

Diesel Mechanic

Morton, IL

$23.75 - $31.50/hr

Fleet Mechanic Level III will build on the duties from Diesel Mechanic I/II and become qualified as necessary with appropriate certifications to perform new technology evaluations, diagnosis, and ...

Fleet Mechanic Level III will build on the duties from Diesel Mechanic I/II and become qualified as necessary with appropriate certifications to perform new technology evaluations, diagnosis, and ...

Diesel Mechanic

Mount Prospect, IL · On-site

$21 - $45/hr

Fleet Mechanic Level III will build on the duties from Diesel Mechanic I/II and become qualified as necessary with appropriate certifications to perform new technology evaluations, diagnosis, and ...

Mechanic

Elk Grove Village, IL · On-site

$21 - $45/hr

Fleet Mechanic Level III will build on the duties from Diesel Mechanic I/II and become qualified as necessary with appropriate certifications to perform new technology evaluations, diagnosis, and ...

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Diesel Mechanic Level 3 information

See salary details

$14

$28

$38

How much do diesel mechanic level 3 jobs pay per hour?

As of Jun 10, 2026, the average hourly pay for diesel mechanic level 3 in the United States is $28.27, according to ZipRecruiter salary data. Most workers in this role earn between $24.04 and $31.73 per hour, depending on experience, location, and employer.

What is the difference between Diesel Mechanic Level 3 vs Diesel Mechanic Level 2?

AspectDiesel Mechanic Level 3Diesel Mechanic Level 2
CertificationsRequires Level 3 certification, advanced skillsRequires Level 2 certification, basic to intermediate skills
Work EnvironmentPerforms complex repairs, diagnostics, and maintenanceHandles routine repairs and maintenance tasks
Employer UsageUsed in specialized or higher responsibility rolesCommon in entry to mid-level positions

Diesel Mechanic Level 3 professionals have advanced certifications and handle more complex repairs compared to Diesel Mechanic Level 2. Level 3 mechanics often work in specialized environments, performing diagnostics and repairs that require higher expertise, while Level 2 mechanics focus on routine maintenance and basic repairs. Both roles are essential in the industry, but Level 3 mechanics typically command higher responsibility and pay.

What is a Diesel Mechanic Level 3?

A Diesel Mechanic Level 3 is an experienced technician who specializes in inspecting, maintaining, and repairing diesel engines, particularly in heavy-duty vehicles and equipment. At this level, mechanics are expected to handle complex diagnostics, perform advanced repairs, and may also supervise or mentor junior technicians. They have a strong understanding of electrical and mechanical systems, and often hold certifications demonstrating their expertise. Level 3 mechanics are trusted to work independently and ensure vehicles comply with safety and emission standards.

What are some common challenges a Diesel Mechanic Level 3 may face when diagnosing complex engine issues?

Diesel Mechanic Level 3 professionals often encounter challenges such as troubleshooting advanced diagnostic problems that may not be immediately revealed by standard testing equipment. These issues may require a deep understanding of electronic control systems and the latest diagnostic software. Additionally, Level 3 mechanics may need to collaborate closely with manufacturers or technical support teams for rare or persistent faults. Staying updated on new diesel technologies and managing time effectively on complex repairs are also key challenges.

What are the key skills and qualifications needed to thrive as a Diesel Mechanic Level 3, and why are they important?

To thrive as a Diesel Mechanic Level 3, you need advanced knowledge of diesel engine repair, diagnostics, and preventive maintenance, typically supported by a high school diploma or equivalent and several years of hands-on experience. Familiarity with diagnostic software, computerized maintenance management systems (CMMS), and certifications such as ASE Diesel Technician are often required. Strong problem-solving skills, attention to detail, and effective communication help mechanics excel in troubleshooting and collaborating with team members. These competencies ensure efficient repairs, vehicle reliability, and safety compliance in demanding fleet environments.
More about Diesel Mechanic Level 3 jobs
What cities are hiring for Diesel Mechanic Level 3 jobs? Cities with the most Diesel Mechanic Level 3 job openings:
What states have the most Diesel Mechanic Level 3 jobs? States with the most job openings for Diesel Mechanic Level 3 jobs include:
Diesel Mechanic

$21 - $45/hr

Full-time

Medical, Dental, Vision, Life, Retirement, PTO

Posted 15 days ago


Kenan Advantage Group rating

6.8

Company rating: 6.8 out of 10

Based on 45 frontline employees who took The Breakroom Quiz

229th of 339 rated logistics


Job description

Title: Diesel Mechanic
KAG is North America's largest tank truck transporter and logistics provider, delivering energy commodities, specialty products, merchant gases and food products across the United States, Canada and Mexico. Our dedicated team of Diesel Mechanics is an essential function of our business, and we are looking to hire talent to lead the way to success!
Starting hourly rate ranges from $21 to $45.
Please note: The hourly hiring rate will vary based on a number of factors: skill level and experience of the applicant, geographic location, and business needs. By applying, candidates acknowledge these terms.
Hours: Shift Days & Times Vary Depending on Location
Relocation: Reimbursement Available
KAG is now seeking to hire all levels of Diesel Mechanics - Apprentice, Levels I, II, III, and HM183 certified!
Here are some of the benefits of joining our company:
  • Opportunities for growth with extensive onsite paid training
  • Guaranteed Pay Increases with completion of training programs and verified prior experience
  • $100 Boot Allowancepaid in quarterly installments
  • $250 Semi-Annual Tool Allowance after one year of service (up to $500 Annually)
  • Benefits Available (Medical/Dental/Vision/401K Match)
  • Paid Vacation and Holidays
Diesel Mechanic Position Summary:
This position is required to safely and accurately perform general property and vehicle maintenance & repair duties in and around the shop operations in a fast-paced environment. Knowledge and understanding basic preventative maintenance and repair techniques of Class 5 through Class 8 commercial vehicles to include tank trailer inspection and maintenance related to the Federal Motor Carrier Safety Administration (FMCSA) regulations is required.
Diesel Mechanic Essential Functions:
All fleet mechanic positions will be required to perform vehicle maintenance & repair duties safely and accurately in and around the shop operations in a fast-paced environment.
  • Fleet Mechanic Apprentices will receive hands on training and instruction on prev"]) self.__next_f.push([1,"entive maintenance/inspections/repairs of Class 5 through Class 8 Commercial Vehicles and maintenance/inspection of tank trailers.
  • Fleet Mechanic Levels I & II will learn and become proficient utilizing the company's maintenance software program to create and complete work orders and maintain work order/vehicle maintenance records. They will also train/assist other technicians in performing preventive/repair of facilities and equipment to include trucks, tractors, and trailers.
  • Fleet Mechanic Level III will build on the duties from Diesel Mechanic I/II and become qualified as necessary with appropriate certifications to perform new technology evaluations, diagnosis, and repairs.
  • HM183 will build on the duties of a Level III Diesel Mechanic, Certified as a (DOT) commercial motor vehicle inspector in compliance with FMCSR's
  • Has been signing test forms as the Registered Inspector for at least 3 years.
Pay Range: - , General Benefits: Benefits include medical, dental, vision and prescription coverage, a 401K program with company match, life insurance, short- and long-term disability, accident insurance, critical illness insurance and hospital indemnity insurance.
Requirements for Fleet Mechanic Level I, II, and III Positions:
  • Valid Driver's License
  • Minimum 1 - 5 years of experience in heavy-duty vehicle maintenance/repair (Tech levels will be determined by years of experience and certifications)
    • Holds a current Air Brake Certification in compliance with FMSCR 396.25 or has at least 1 year of verifiable experience with the ability to obtain Air Brake Certification through KAG
    • EPA 609 certification (Motor Vehicle Air Conditioning Repair) or the ability to obtain certification through KAG
Requirements for HM183 Positions:
  • Valid Driver's License
  • Verifiable proof of 3-year tank testing commercial motor vehicle inspector in compliance with FMSCR or has at least 1 year of verifiable experience under a qualified inspector with the ability to obtain (DOT) commercial motor vehicle inspector certification through KAG
Physical Requirements:
  • LIFTING REQUIREMENTS: Frequently lifting up to 50 pounds. Anything over 50 pounds is lifted with assistance.
Kenan Advantage Group, Inc. is an equal opportunity employer. No person will be discriminated against in any aspect of their employment on the basis of any status or characteristic protected by applicable federal, state or local law
Note: The above statements are intended to describe the general nature and level of work being performed. They are not intended to be construed as an exhaustive list of all responsibilities and skills required of associates so classified. Management retains the right to assign or reassign duties at any time. Job description is subject to change. All employees of the Company are expected to:
Promote positive work habits including effective and timely communication, teamwork and respect for co-workers.
Provide constructive guidance to other employees and representatives of third parties.
Contribute to providing the highest quality of products and services to customers
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About Kenan Advantage Group

Sourced by ZipRecruiter

KAG is North America’s largest Tank Truck Transporter and Logistics provider, delivering energy Commodities, Specialty products, Merchant gases and Food products through six unique operating platforms. KAG operates out of approximately 300 Terminal and Satellite locations throughout North America. We are the only independent carrier with a nationwide network, with operations in 42 states and the ability to deliver within all 48 continental United States, Canada, and Mexico. KAG will be the premier global transportation and logistics provider through an uncompromising commitment to People, Safety, Innovation, and Diversity.

Industry

Natural gas and oil pipeline transportation

Company size

1,001 - 5,000 Employees

Headquarters location

North Canton, OH, US

Year founded

1991