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Diesel Mechanic Level 3 Jobs (NOW HIRING)

GFL Environmental

Diesel Mechanic

Warner Robins, GA · On-site

$22.75 - $30/hr

Job Summary As a Level A or B Diesel Mechanic, you will play a critical role in keeping our fleet on the road. You'll be responsible for safely diagnosing, repairing, rebuilding, and maintaining our ...

New

Transdev

Diesel Mechanic

Minneapolis, MN

$50/hr

Transdev in Minneapolis is seeking an experienced A-Level (Level 3) Diesel Mechanic to bolster our team. This role demands expertise in diagnosing, repairing, and maintaining diesel engines across ...

Transdev

Diesel Mechanic

Minneapolis, MN · On-site

$50/hr

Transdev in Minneapolis is seeking an experienced A-Level (Level 3) Diesel Mechanic to bolster our team. This role demands expertise in diagnosing, repairing, and maintaining diesel engines across ...

Academy Bus

Diesel Bus Mechanic (Class C)

Perth Amboy, NJ · On-site

$23 - $28/hr

Diesel Mechanic - Class C / Level 3 * Repair, troubleshooting, and diagnosis of modern tour buses * Reconditioning, preventative and routine maintenance * General lubrication functions such as: Oil ...

Pros Mechanics

Diesel Mechanic

Crestwood, IL

$35 - $40/hr

Technicians should have a minimum of 3 years experience repairing heavy-duty trucks, trailers, or ... Compensation: $35 - $40/hr. Wage rang is based on experience level, certification and ...

EPSILON SYSTEMS

$22 - $27/hr

The Marine Mechanic-Level III Technician will provide troubleshooting, maintenance, repair and ... Cummins Diesel Engines * Hamilton Waterjet Model HJ292 * Hamilton Waterjet Model HM651 * Twin Disc ...

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All JobsDiesel Mechanic Level 3 Jobs

Diesel Mechanic Level 3 information

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$38

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

As of Aug 9, 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 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 skills and qualifications are needed to thrive as a diesel mechanic level 3?

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.
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Diesel Mechanic Level 3 jobs near you

Gas/Diesel Mechanic Level A

Bentley Truck Services - Maple Shade

Maple Shade, NJ

$28 - $33/hr

Full-time

Medical, Dental, Vision, Life, Retirement, PTO

Re-posted 26 days ago

Job description

Bentley Truck Services, Inc. has been family owned and operated since 1991. Starting as a small 2 bay shop in Philadelphia, we have grown to 10 locations expanding to 4 states on the east coast, offering commercial truck sales, commercial truck rentals, full-service leasing, contract maintenance, parts, and service. We continue to work every day towards our philosophy of being Committed to Excellence. If you have passion and are committed to success, we want you on our Team!

We offer in-house and dealership training programs that boost technicians’ skills providing excellent potential for growth.. If you have fleet or dealership experience, please apply - we'd love to speak with you!

Benefits:

  • Sick/PTO
  • Paid Holidays
  • Competitive Wage
  • Generous 401k match.
  • Medical, Dental, Vision
  • Employee Referral Bonus
  • Quarterly Tool Allowance
  • Company Paid Life Insurance
  • Supplemental Life, LTD, STD, etc
  • OEM (Manufacturer) Training and Ongoing On-the-Job (OTJ) Training Opportunities

Job Summary

The Gas/Diesel Mechanic Level A is responsible for is responsible for performing advanced diagnostics, comprehensive mechanical and electrical repairs on commercial trucks and box trucks. This role ensures fleet and customer vehicle safety, reliability, performance, and regulatory compliance. Opportunity to use exceptional skills and knowledge to support overall business goals while mentoring and developing other technicians. Will work very close with management team to provide insight on overall shop operations.

Responsibilities 
  • Diagnose, repair, and maintain vehicle systems including drivetrain, brakes, suspension, HVAC, and electrical components.
  • Perform preventative maintenance services such as inspections, lubrication, and fluid/filter changes.
  • Conduct safety, emissions, clutch, brake, steering, suspension, and 5th wheel inspections and repairs as authorized.
  • Safely operate tools and diagnostic equipment while maintaining compliance with DOT, company safety standards, and a clean work environment.
  • Accurately document repairs and inspections, communicate shop concerns to management, and support team operations as needed.

Qualifications:

  • 6+ years of experience servicing light-, medium-, and heavy-duty trucks, including preventative maintenance and diagnostics.
  • Strong knowledge of brake, drivetrain, suspension, electrical, and OEM repair systems; Isuzu and Hino experience preferred.
  • Experience performing brake jobs, 5th wheel repairs, and box truck electrical system repairs preferred.
  • Valid driver’s license required (CDL preferred) with ability to pass pre-employment and random DOT drug screenings.
  • Ability to lift up to 50 lbs, push/pull up to 75 lbs; high school diploma/GED and ASE certifications are a plus.

Salary

  • $28.00 to $33.00 an hour.

Why Join Us

  • Work on industry-leading Isuzu and Hino trucks.
  • Manufacturer training and certification opportunities.
  • Clear career path and long-term-on-the-job training.
  • Stable, well-equipped shop environment.
  • Supportive team culture focused on safety, training, and growth.
  • Provide guidance and technical support to Technicians as needed.

We are an equal opportunity employer and prohibit discrimination/harassment without regard to race, color, religion, age, sex, national origin, disability status, genetics, protected veteran status, sexual orientation, gender identity or expression, or any other characteristic protected by federal, state, or local laws.

Apply