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Diesel Mechanic Jobs in Oak Ridge, TN (NOW HIRING)

Republic Services

Diesel Mechanic

Kingston, TN

$21.50 - $28.50/hr

With direct supervision from a Lead Technician, Maintenance Supervisor or Maintenance Manager, a Maintenance Technician B performs repair and maintenance work on diesel and non-diesel equipment and ...

Republic Services

Diesel Mechanic

Kingston, TN · On-site

$21.50 - $28.50/hr

With direct supervision from a Lead Technician, Maintenance Supervisor or Maintenance Manager, a Maintenance Technician B performs repair and maintenance work on diesel and non-diesel equipment and ...

Republic Services

Diesel Mechanic

Kingston, TN · On-site

$21.50 - $28.50/hr

With direct supervision from a Lead Technician, Maintenance Supervisor or Maintenance Manager, a Maintenance Technician B performs repair and maintenance work on diesel and non-diesel equipment and ...

Cox Fleet

Mobile Diesel & Trailer Mechanic II

Knoxville, TN · On-site

$23.75 - $31.50/hr

The Diesel amp; Trailer Technician continues to learn additional advanced mechanical skills and diagnostic techniques. A successful Diesel amp; Trailer Technician complies with all company policies ...

Red Classic

Diesel Maintenance Mechanic B

Knoxville, TN · On-site

$28.50 - $33/hr

Perform some electrical, mechanical diagnostic, and repair of customer vehicles and equipment, including material handling, trailers, and diesel-powered equipment * Perform various forms of equipment ...

Red Classic

Diesel Maintenance Mechanic B

Knoxville, TN · On-site

$28.50 - $33/hr

Perform some electrical, mechanical diagnostic, and repair of customer vehicles and equipment, including material handling, trailers, and diesel-powered equipment * Perform various forms of equipment ...

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All JobsDiesel Mechanic JobsDiesel Mechanic Jobs in Oak Ridge, TN

Diesel Mechanic information

See Oak Ridge, TN salary details

$14

$27

$37

How much do diesel mechanic jobs pay per hour?

As of Aug 24, 2026, the average hourly pay for diesel mechanic in Oak Ridge, TN is $27.03, according to ZipRecruiter salary data. Most workers in this role earn between $22.98 and $30.34 per hour, depending on experience, location, and employer.

What does a diesel mechanic do?

A diesel mechanic is a skilled tradesperson who inspects, repairs, and maintains diesel engines found in vehicles such as trucks, buses, and construction equipment. Their work includes diagnosing engine problems, performing routine maintenance, replacing faulty parts, and ensuring engines run efficiently and safely. Diesel mechanics may also use computerized diagnostic tools and must stay updated with the latest technology and equipment. They play a crucial role in keeping transportation and heavy machinery operational.

What does a diesel mechanic do?

A diesel mechanic is a highly skilled technician with a deep knowledge of diesel engines. These specialized mechanics provide all regularly needed maintenance for diesel engines and are also capable of making any needed repairs.

What are the key skills and qualifications needed to thrive as a diesel mechanic, and why are they important?

To thrive as a Diesel Mechanic, you need a strong understanding of diesel engines, mechanical systems, and diagnostic techniques, often supported by a technical diploma or ASE certification. Familiarity with diagnostic software, hand and power tools, and computerized maintenance management systems (CMMS) is typically required. Strong problem-solving abilities, attention to detail, and effective communication skills help mechanics excel in troubleshooting and team environments. These skills are crucial for ensuring vehicle reliability, safety, and efficient maintenance operations.

What are some common challenges diesel mechanics face when working on modern diesel engines?

Diesel mechanics often encounter challenges with modern diesel engines due to the increasing complexity of electronic control systems and emission regulations. Diagnosing issues now requires proficiency with advanced diagnostic tools and software, in addition to traditional mechanical skills. Staying updated on new engine technologies and ongoing training is essential to effectively troubleshoot and repair newer models. Working collaboratively with other technicians and service advisors can also help in resolving particularly complex problems.

What is the difference between Diesel Mechanic vs Automotive Technician?

AspectDiesel MechanicAutomotive Technician
CertificationsASE Diesel Certification, EPA CertificationASE Automotive Certification, EPA Certification
Work EnvironmentTruck fleets, heavy equipment, diesel enginesPassenger cars, light trucks, small engines
Industry UsageTransportation, construction, agriculturePersonal vehicles, repair shops

Diesel Mechanics specialize in repairing and maintaining diesel engines used in trucks, buses, and heavy equipment, often requiring specific certifications. Automotive Technicians focus on gasoline-powered vehicles and light trucks. While both roles involve engine repair and diagnostics, Diesel Mechanics typically work in industries involving heavy-duty vehicles, whereas Automotive Technicians serve the general consumer vehicle market.

Is being a diesel mechanic a good career?

A diesel mechanic is a skilled tradesperson who repairs and maintains diesel engines in vehicles and equipment. The profession offers steady employment, competitive wages, and opportunities for specialization, often requiring technical training and certifications. It can be a stable career choice for those interested in hands-on work and machinery maintenance.
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Diesel Mechanic jobs near you
Infographic showing various Diesel Mechanic job openings in Oak Ridge, TN as of August 2026, with employment types broken down into 100% Full Time. Highlights an 100% In-person job distribution, with an average salary of $56,213 per year, or $27 per hour.

Automotive Diesel Mechanic

WORKFORCE SERVICES INC

Knoxville, TN

$36 - $42/hr

Full-time

Medical, Dental, Vision, Life, PTO

Re-posted 21 days ago

Job description

Description

Automotive Diesel Mechanic | $36-42 + /hr DOE. | Full Benefits | Knoxville, TN


We're looking for an experienced Diesel Mechanic to join our Knoxville -based fleet service team.  If you're a pro with diesel and gas trucks who wants to work for a stable, high-paying operation we want to talk. 


Schedule:  Full-time, Monday - Friday  5am-1:30pm


Pay & Benefits: 

- $ 36-42 + /hr DOE (Hourly, not flat rate)

- Paid Time Off + Paid Holidays- Health, Dental, and Vision Insurance

- Life & Disability Insurance

- Bi-Weekly pay and national growth opportunities   


What You'll Work On:

- Diagnose, maintain, and repair diesel and gas-powered trucks, vans, and medium/heavy duty vehicles ( Isuzu trucks, chevy van , Sprinters ) 

- Preventive maintenance and DOT inspections

- Perform test drives and make system adjustments as needed

- Maintain accurate service records and manage shop equipment

- Conduct field repairs in various weather conditions 


What You Bring:

- 3-4 years' experience as a diesel or fleet mechanic

- GED or High School Diploma

- Valid driver's license and own tool 

- Must pass background check

- Strong accountability and customer service mindset 


Quick Apply Process:  Apply today for a 5 - 10 minute phone screen. Local interviews follow shortly after .

Apply