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Assistant Diesel Mechanic Jobs in Riverside, CA (NOW HIRING)

RelaDyne

Mechanic II

Colton, CA

$36 - $37/hr

Diagnose and repair diesel engines, electrical systems, air brakes, steering, suspension, and ... Inspect vehicles and equipment to identify maintenance and safety concerns. * Assist with ...

RelaDyne LLC

Mechanic II

Colton, CA · On-site

$36 - $37/hr

Diagnose and repair diesel engines, electrical systems, air brakes, steering, suspension, and ... Inspect vehicles and equipment to identify maintenance and safety concerns. * Assist with ...

City of Riverside, CA

MECHANIC

Riverside, CA · On-site

$65K - $79K/yr

... * Assist and participate in engine tune-ups, overhauls, and general repair and maintenance of a ... Maintain and repair gas- and diesel-powered light and heavy fire equipment and apparatus such as ...

City of Riverside

MECHANIC

Riverside, CA · On-site

$65K - $79K/yr

... Assist and participate in engine tune-ups, overhauls, and general repair and maintenance of a ... Maintain and repair gas- and diesel-powered light and heavy fire equipment and apparatus such as ...

Universal Waste Systems

Mechanic

Perris, CA · On-site

$28 - $30/hr

... * Assist in execution of preventative maintenance program by performing oil and fluid changes ... Diesel and/or compressed natural gas engines, heavy equipment mechanical components and parts.

Universal Waste Systems

Mechanic

Perris, CA · On-site

$28 - $30/hr

... * Assist in execution of preventative maintenance program by performing oil and fluid changes ... Diesel and/or compressed natural gas engines, heavy equipment mechanical components and parts.

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All JobsDiesel Mechanic JobsAssistant Diesel Mechanic JobsAssistant Diesel Mechanic Jobs in Riverside, CA

Assistant Diesel Mechanic information

See Riverside, CA salary details

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$29

How much do assistant diesel mechanic jobs pay per hour?

As of Aug 11, 2026, the average hourly pay for assistant diesel mechanic in Riverside, CA is $20.93, according to ZipRecruiter salary data. Most workers in this role earn between $18.08 and $22.55 per hour, depending on experience, location, and employer.

What are some typical challenges an assistant diesel mechanic may face in their daily work?

Assistant Diesel Mechanics often encounter challenges such as diagnosing complex engine problems, working with heavy and sometimes outdated equipment, and managing time effectively in a busy repair shop environment. They may also need to quickly adapt to new technologies and tools as diesel engines evolve, while ensuring all repairs meet strict safety and regulatory standards. Effective communication with lead mechanics and other team members is crucial to ensure tasks are completed efficiently and safely.

What is the difference between Assistant Diesel Mechanic vs Diesel Mechanic?

AspectAssistant Diesel MechanicDiesel Mechanic
CertificationsBasic technical training, ASE certifications often preferredAdvanced ASE certifications, extensive training required
Work EnvironmentAssists in repair shops, garages, fleet maintenancePerforms repairs, diagnostics, and maintenance independently
Job ResponsibilitiesSupports diagnostics, basic repairs, parts replacementPerforms complex repairs, troubleshooting, and diagnostics
Experience LevelEntry-level or apprentice roleExperienced, skilled technician

The main difference between an Assistant Diesel Mechanic and a Diesel Mechanic lies in experience, responsibilities, and certification levels. Assistants support more routine tasks and are often in training, while Diesel Mechanics handle complex repairs independently. Both roles are essential in fleet maintenance and repair environments, with the Assistant Diesel Mechanic serving as a stepping stone to becoming a fully qualified Diesel Mechanic.

What are the key skills and qualifications needed to thrive as an assistant diesel mechanic?

To thrive as an Assistant Diesel Mechanic, you need a solid understanding of diesel engine fundamentals, basic mechanical repair skills, and a high school diploma or technical certification in diesel technology. Familiarity with diagnostic software, hand and power tools, and maintenance record systems is typically required. Strong attention to detail, a willingness to learn, and effective teamwork are crucial soft skills for this role. These competencies ensure accurate repairs, efficient servicing, and safe operation of diesel-powered vehicles and equipment.

What is an assistant diesel mechanic?

Assistant Diesel Mechanics are entry-level professionals who support experienced diesel mechanics in maintaining, repairing, and servicing diesel engines and vehicles. Their duties often include tasks such as changing oil, replacing filters, assisting with diagnostics, and keeping the work area organized. They also help with more complex repairs under supervision, ensuring that trucks, buses, and other diesel-powered equipment operate safely and efficiently. This role is a valuable stepping stone for those looking to advance in the diesel technology field.
What are the most commonly searched types of Diesel Mechanic jobs in Riverside, CA? The most popular types of Diesel Mechanic jobs in Riverside, CA are:
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What job categories do people searching Assistant Diesel Mechanic jobs in Riverside, CA look for? The top searched job categories for Assistant Diesel Mechanic jobs in Riverside, CA are:
What cities near Riverside, CA are hiring for Assistant Diesel Mechanic jobs? Cities near Riverside, CA with the most Assistant Diesel Mechanic job openings:
Assistant Diesel Mechanic jobs near you

Experienced Diesel Mechanic

RECYCLING COMPANY

Fontana, CA • On-site

$26 - $32/hr

Full-time

Medical, Dental, Vision, Life, Retirement, PTO

Posted 27 days ago

Job description

Benefits:
  • Free uniforms
  • Health insurance
  • Paid time off
  • 401(k)
  • Dental insurance

 
DIESEL MECHANIC WITH FLEET EXPERIENCE NEEDED
Are you a team player?  Looking for an awesome team to work alongside then we are the group of professional team members you have been looking for!
The position we have available is for an experienced Diesel Mechanic.  This person is critical to our continued growth and success.  We are looking for a strong minded, intelligent, hardworking, resilient individual with experience and a grasp of fleet and diesel mechanics.     
JOB DUTIES INCLUDE:
  • Maintain a clean and safe work area including your company vehicle if assigned and customer facilities.
  • Adhere to all OSHA, company and customer safety procedures.
  • Maintain positive customer relations through professional interactions with customers.
  • Follow all company operating and process procedures.
  • Complete all repairs as directed using company and manufacture procedures and guidelines.
  • Diagnose codes with software analytics
  • Able to repair, or replace major components
  • Troubleshoot and diagnose most truck components
  • Perform engine tune-ups on most makes of equipment without supervision
  • Perform proper PM’s in a timely manner
  • Be able to use all special tools properly. Maintain and properly use the normal tools of the trade.
  • Operate service van in a clean, safe and secure manner following all required safety rules for the job
  • Assist with training/mentoring apprentice mechanics through on-the-job training.
  • Follows all safety procedures in performing work as well as company policies
  • Demonstrates exceptional customer service skills
  • Properly identify and order all necessary replacement parts with parts frequently needed in stock.
  • Driving is an essential function of this position and a valid current driver’s license must be maintained always.
  • Perform other duties as required per management.
 
 THE RIGHT CANDIDATE WILL POSSESS: 
  • 3 yrs. - 5 yrs. diesel mechanics
  • Fleet or mechanic management experience highly desired
  • Strong knowledge of Paccar, Peterbilt, Cummins and Mack is highly desired
  • Quick learner and intelligent
  • Excellent multi-tasking and project management
  • Strong organizational skills
  • Effective communication and interpersonal skills
  • Strong problem-solving skills
  • The desire to do the job right every time

 COMPENSATION PACKAGE: 
- $26 - $32 per hour DOE
- Health Insurance, Vision, Dental and Life offered
- 2 weeks Accruable PTO
- Paid Holidays & 401k