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Diesel Mechanic Level 3 Jobs in Riverside, CA (NOW HIRING)

Heavy Duty Diesel Mechanic

Rialto, CA ยท On-site

$33.80/hr

2nd Shift Heavy Duty Diesel & Rollingstock Mechanic Starting at $33.80/hour Who We Are Thompson ... The noise level in the work environment can be loud. Physical Demands * While performing the duties ...

Technician - Level 3

Colton, CA ยท On-site

$35.70 - $42.84/hr

Shop Mechanic, Mechanic, Technician, Service Foreman, Service Manager, Shop Manager, Mechanic Supervisor, Technician Supervisor, Lead Mechanic, Lead Technician, Diesel Technician, Diesel Mechanic ...

Responsible for repairs and required preventive maintenance of diesel engines, trucks and/or ... Possess mechanical ability and interest of engines, electronics and precision equipment * Must ...

Responsible for repairs and required preventive maintenance of diesel engines, trucks and/or ... Possess mechanical ability and interest of engines, electronics and precision equipment * Must ...

Power Mechanic Level B

Banning, CA ยท On-site

$39.15 - $41.15/hr

Responsible for repairs and required preventive maintenance of diesel engines, trucks and/or ... Possess mechanical ability and interest of engines, electronics and precision equipment * Must ...

Showing results 21-40

Diesel Mechanic Level 3 information

See Riverside, CA salary details

$15

$29

$40

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

As of Aug 15, 2026, the average hourly pay for diesel mechanic level 3 in Riverside, CA is $29.49, according to ZipRecruiter salary data. Most workers in this role earn between $25.10 and $33.12 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.

What are popular job titles related to Diesel Mechanic Level 3 jobs in Riverside, CA?

For Diesel Mechanic Level 3 jobs in Riverside, CA, the most frequently searched job titles are:

What cities near Riverside, CA are hiring for Diesel Mechanic Level 3 jobs?

Cities near Riverside, CA with the most Diesel Mechanic Level 3 job openings:

Diesel Mechanic/Technician (2087)

Kooner Fleet Management Solutions

Perris, CA โ€ข On-site

$34 - $38/hr

Full-time

Medical, Dental, Vision, Retirement, PTO

This job post hasย expired today.ย Applications are no longer accepted.


Job description

Join Us as a Diesel Mechanic/Technician!ย 

About Kooner Fleet Management Solutionsย 

Kooner Fleet Management Solutions is one of the fastest-growing national providers of on-site fleet maintenance, preventative service, and mobile repair solutions. With nearly a decade of industry experience, Kooner FMS helps fleets reduce downtime, extend vehicle life, and simplify operations through proactive maintenance programs and advanced technology.ย 

As a family-founded and field-first company, we take pride in delivering trusted partnerships, exceptional service, and innovative fleet management solutions that keep America's trucks and trailers road-ready.ย 

Schedule: Sunday - Thursday, 2:00PM - 9:30PM

Why You'll Love Joining Our Teamย 

  • Earn What You Deserve: Competitive pay starting at $34-38/hour based on experience.ย 
  • Weekly Paydays: Get paid every Friday - no waiting around!ย 
  • Stay Connected: Cell phone allowance included.ย 
  • Invest in Your Future: 401(k) with company match.ย 
  • Health Benefits that Kick in Fast: Medical, Dental, and Vision coverage after just 30 Days!ย 
  • Time to Recharge:ย Enjoyย paid vacation time, paid sick time, and paid holidaysย to rest, recharge, and take care of what matters most.ย 
  • We've Got You Covered: Life & Disability Insurance for added peace of mind - because we take care of our team on and off the job.ย 
  • We're Here for You: Access to our Employee Assistance Program for support when you need it most - we've got your back.ย 
  • Bring a Friend, Get Rewarded: Refer great talent and earn $500 per successful hire - no limits on how many bonuses you can earn!ย 
  • Grow With Us: Big Career Growth Opportunities in a rapidly expanding, forward-thinking organization.ย 

About the Diesel Mechanic/Technician Roleย ย 

As a Diesel Mechanic/Technician, you'll be the expert our customers rely on to keep their fleets on the road. This field-based role is perfect for skilled technicians who enjoy independence and variety in their work. You'll be responsible for performing preventative maintenance, diagnostics, and repairs on Class 6-8 trucks.ย 

Backed by a supportive team that values your skill, drive and dedication, you'll tackle new challenges every day and take pride in delivering safe, reliable and efficient service that keeps America moving.ย 

Where You'll Make an Impactย 

  • Perform onsite preventative maintenance, DOT inspections and follow up repairs on Class 6-8 trucks in a field environment.ย 
  • Respond to dispatch requests for scheduled and unscheduled service or maintenance.ย 
  • Diagnose and repair electrical, brake, cooling, and air systems - everything that keeps a fleet running strong.ย 
  • Use advanced diagnostic tools, including handheld computers and precision instruments, to identify and fix issues fast.ย 
  • Put your expertise to work using hand tools, power tools, and welding equipment to get the job done right.ย 
  • Road test vehicles to ensure every repair meets top-quality standards.ย 
  • Stay productive and efficient, meeting or beating industry-standard repair times.ย 
  • Jump in wherever needed - we're a team that supports each other.ย 

What Makes You a Great Fitย 

  • At least 3 years of hands-on diesel tech experience working on Class 6-8 trucks.ย 
  • Expertise in CNG engine systems is a huge plus!ย 
  • DOT inspection and air brake repair expertise that keeps fleets rolling safely.ย ย 
  • Strong communication skills - you know how to connect and communicate with customers and drivers alike.ย ย 
  • Comfortable using mobile apps, navigation systems and digital tools to stay organized and document repairs.ย ย 
  • Ready for the outdoors - rain or shine at customer yards.ย 
  • Independent, dependable, and self-motivated - you take pride in getting the job done right.ย 
  • A positive attitude and safety-first mindset.ย 
  • Must be 23+ย with a clean driving record and a valid driver's license.ย ย 
  • Bring your own hand tools and we'll supply everything else.ย 

Work Environmentย 

  • Work in dynamic, high-traffic areas - safety and precision are key.ย 
  • Expect exposure to dust, diesel fumes, and noise typical of a shop or yard environment.ย 
  • Safely handle chemicals, oils, and grease as part of repair work.ย 
  • Be ready to lift, move, and position heavy equipment or components.ย 
  • Stay active - you'll bend, kneel, crawl, and crouch to access vehicle components.ย ย 
  • Work outdoors in all weather conditions - rain or shine, our team gets it done.ย 

ย 

Kooner Fleet Management Solutions is an Equal Opportunity Employer. We are committed to creating an inclusive environment for all employees and applicants, free from discrimination and harassment. All qualified candidates will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, age, disability, veteran status, or any other characteristic protected by law. We celebrate diversity and are dedicated to fostering a workplace where every team member can thrive.ย 

Kooner Fleet Management Solutions participates in E-Verify for employment eligibility verification.ย 

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