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Diesel Mechanic Jobs in Riverside, CA (NOW HIRING)

CleanStreet

CNG/Diesel Mechanic

Fontana, CA · On-site

$18 - $30/hr

... mechanic - Knowledge of diesel, propane and CNG engines - Knowledge of hydraulics, brakes, transmissions. - Ability to drive truck (cdl not necessary but preferred)

Union Pacific

Mechanic Diesel Engines

Colton, CA

$41.07/hr

Description Are you an experienced mechanic or looking to start your career in the field? Union Pacific is offering exciting opportunities and fresh challenges to work on our extensive diesel ...

Linde

LSI Diesel Mechanic

Rancho Cucamonga, CA · On-site

$61K - $90K/yr

LSI Diesel Mechanic Rancho Cucamonga, CA, Griffith, IN, United States req31471 What you will enjoy doing* * You will perform preventive and corrective maintenance on mobile nitrogen pumpers and ...

Thompson Pipe Group

Heavy Duty Diesel Mechanic

Rialto, CA · On-site

$33.80/hr

2nd Shift Heavy Duty Diesel & Rollingstock Mechanic Starting at $33.80/hour Who We Are Thompson Pipe Group is a privately held family business of engineers, contractors, and manufacturers based in ...

Linde

LSI Diesel Mechanic

Rancho Cucamonga, CA · On-site

$25.25 - $33.50/hr

... including diesel and gasoline engines, hydraulic systems, cryogenic trailers and pumps, tractor ... mechanical events and restoring equipment to service in accordance with manufacturer and company ...

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All JobsDiesel Mechanic JobsDiesel Mechanic Jobs in Riverside, CA

Diesel Mechanic information

See Riverside, CA salary details

$15

$29

$40

How much do diesel mechanic jobs pay per hour?

As of Sep 14, 2026, the average hourly pay for diesel mechanic 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 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 Riverside, CA as of September 2026, with employment types broken down into 96% Full Time, 2% Part Time, and 2% Nights. Highlights an 100% In-person job distribution, with an average salary of $61,342 per year, or $29.5 per hour.

Diesel Mechanic/Technician (2118)

San Bernardino, CA • On-site

Kooner Fleet Management Solutions
See more jobs at Kooner Fleet Management Solutionsexternal

$34 - $38/hr

Full-time

Medical, Dental, Vision, Retirement, PTO

Posted 18 days ago

Key responsibilities

  • Perform onsite preventative maintenance, DOT inspections, and follow-up repairs on Class 6-8 trucks in a field environment.

  • Diagnose and repair electrical, brake, cooling, and air systems using advanced diagnostic tools and hand or power tools.

  • Respond to dispatch requests for scheduled and unscheduled service or maintenance, ensuring repairs meet quality standards.

Job description

Join Us as a Diesel Mechanic/Technician! 

About Kooner Fleet Management Solutions 

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. 

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. 

Schedule: Sunday - Thursday, 1:00PM - 9:30PM

Why You’ll Love Joining Our Team 

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

About the Diesel Mechanic/Technician Role  

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. 

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. 

Where You’ll Make an Impact 

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

What Makes You a Great Fit 

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

Work Environment 

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

 

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. 

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

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