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

RelaDyne LLC

Mechanic II

Colton, CA · On-site

$36 - $37/hr

... help keep our fleet operating safely and efficiently. In this role, you'll perform preventive maintenance, diagnose and repair mechanical issues, and support the maintenance of diesel trucks ...

RelaDyne

Mechanic II

Colton, CA · On-site

$36 - $37/hr

... help keep our fleet operating safely and efficiently. In this role, you'll perform preventive maintenance, diagnose and repair mechanical issues, and support the maintenance of diesel trucks ...

United Rentals

Field Diesel Mechanic - CES

Riverside, CA · On-site

$25.20 - $46.60/hr

As a Field Diesel Mechanic - Customer Equipment Solutions (Service Tech IV - Field Service - CES ... With many veterans already part of our team, we're ready to help you transition into a ...

United Rentals

Field Diesel Mechanic - CES

Riverside, CA · On-site

$25.20 - $46.60/hr

As a Field Diesel Mechanic - Customer Equipment Solutions (Service Tech IV - Field Service - CES ... With many veterans already part of our team, we're ready to help you transition into a rewarding ...

United Rentals

Field Diesel Mechanic - CES

Riverside, CA · On-site

$25.20 - $46.60/hr

As a Field Diesel Mechanic - Customer Equipment Solutions (Service Tech IV - Field Service - CES ... With many veterans already part of our team, we're ready to help you transition into a rewarding ...

KASA Construction Inc.

Heavy Equipment Mechanic

Chino, CA · On-site

$26.50 - $34.75/hr

The ideal candidate will bring a strong background in diesel engine mechanics, a proactive approach ... Apply today to join KASA Construction Inc. and help us keep our operations running smoothly and ...

Rush Enterprises

Diesel Service Mechanic

Fontana, CA · On-site

$45/hr

Overhaul gas or diesel engines. * Install injectors, pistons, liners, cam shafts, cylinder heads ... to help you build long-term financial security. Additionally, we provide performance-based ...

Rush Enterprises

Diesel Service Mechanic

Fontana, CA · On-site

$33.80 - $45/hr

Overhaul gas or diesel engines. * Install injectors, pistons, liners, cam shafts, cylinder heads ... to help you build long-term financial security. Additionally, we provide performance-based ...

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All JobsDiesel Mechanic Helper JobsDiesel Mechanic Helper Jobs in Riverside, CA

Diesel Mechanic Helper information

See Riverside, CA salary details

$15

$29

$40

How much do diesel mechanic helper jobs pay per hour?

As of Sep 14, 2026, the average hourly pay for diesel mechanic helper 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 a diesel mechanic helper?

A Diesel Mechanic Helper assists diesel mechanics in maintaining, repairing, and inspecting diesel engines and vehicles. Their duties include handling tools, cleaning parts, performing basic maintenance tasks, and ensuring the work area is organized. They may also help diagnose issues and replace faulty components under supervision. This role provides hands-on experience and is a great stepping stone for becoming a certified diesel mechanic.

What does a diesel mechanic helper do?

A typical day for a Diesel Mechanic Helper involves assisting lead mechanics with inspecting, servicing, and repairing diesel engines and related machinery. Tasks often include preparing tools and parts, performing routine maintenance like oil changes or filter replacements, cleaning work areas, and keeping accurate records of completed tasks. The role frequently requires working in shop settings, sometimes outdoors, and collaborating closely with other mechanics and supervisors. This hands-on experience not only builds technical skills but can also serve as a stepping stone to more advanced mechanic roles over time.

What skills and qualifications are needed to be a diesel mechanic helper?

To thrive as a Diesel Mechanic Helper, you need a basic understanding of diesel engine components, hand tools, and mechanical systems, often gained through a high school diploma or trade school courses. Familiarity with diagnostic equipment, pneumatic tools, and safety protocols is important and some employers may require OSHA certifications. Strong teamwork, reliability, and a willingness to learn new skills make candidates stand out. These abilities ensure you can effectively support lead mechanics, maintain safety, and grow within a fast-paced maintenance environment.

How much do diesel mechanic helpers make in the US?

Diesel mechanic helpers in the US typically earn an average hourly wage of around $15 to $20, which translates to approximately $31,000 to $41,600 annually for full-time work. Wages can vary based on experience, location, and whether they have certifications or specialized skills such as working with diagnostic tools or heavy-duty engines.

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:

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

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

What job categories do people searching Diesel Mechanic Helper jobs in Riverside, CA look for?

The top searched job categories for Diesel Mechanic Helper jobs in Riverside, CA are:

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

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

Diesel Mechanic Helper jobs near you
Infographic showing various Diesel Mechanic Helper job openings in Riverside, CA as of September 2026, with employment types broken down into 98% Full Time, and 2% Part Time. Highlights an 100% In-person job distribution, with an average salary of $61,342 per year, or $29.5 per hour.

Mechanic II

Colton, CA • On-site

RelaDyne LLC
Oil and Gas Extraction • 201 - 500 employees
Learn more about RelaDyne LLCexternal

$36 - $37/hr

Full-time

Retirement, PTO

Re-posted 18 days ago

RelaDyne rating

7.2

Company rating: 7.2 out of 10

Based on 19 frontline employees who took The Breakroom Quiz

Job description

RelaDyne is the nation's leading automotive, industrial, and commercial lubricants provider and a trusted partner for reliability services. We're more than just a distributor; we're a team dedicated to innovation, service excellence, and lasting customer relationships.
We're looking for a skilled and dependable Mechanic II to help keep our fleet operating safely and efficiently. In this role, you'll perform preventive maintenance, diagnose and repair mechanical issues, and support the maintenance of diesel trucks, trailers, fuel trucks, and other fleet equipment. You'll work independently on routine repairs while collaborating with senior technicians on more advanced diagnostics and repairs.
Why Join Us?
  • Competitive pay - $36-$37 per hour
  • Comprehensive benefits package
  • 401(k) with company match
  • Paid time off and holidays
  • Career growth and development opportunities
  • Safety-focused team environment

What You'll Do
  • Perform preventive maintenance, including oil changes, filter replacements, inspections, and fluid services.
  • Diagnose and repair diesel engines, electrical systems, air brakes, steering, suspension, and hydraulic systems.
  • Inspect vehicles and equipment to identify maintenance and safety concerns.
  • Assist with maintenance and repairs of fuel systems and pumps (training provided).
  • Complete repairs efficiently while maintaining high-quality workmanship.
  • Work alongside senior mechanics on complex diagnostics and major repairs.
  • Accurately complete work orders, maintenance records, and inspection reports.
  • Follow all DOT, OSHA, and company safety policies and procedures.
  • Maintain a clean, organized, and safe work environment.
  • Respond to roadside service calls as needed.
  • Participate in ongoing training to stay current on equipment and industry best practices.
  • Perform other duties as assigned to support fleet operations.

What You'll Bring
  • High school diploma or equivalent.
  • Two to four years of experience maintaining and repairing diesel or heavy-duty vehicles.
  • Working knowledge of diesel engines, air brake systems, electrical systems, and hydraulics.
  • Ability to diagnose and complete intermediate-level repairs with minimal supervision.
  • Valid driver's license.
  • Basic computer skills and the ability to document maintenance activities accurately.
  • Experience with fuel trucks or petroleum equipment is a plus but not required.

At RelaDyne, you'll find more than just a job-you'll discover a career with a company that values people, teamwork, and growth. Apply today and join the team driving the future of reliability.
Safety-Sensitive Position Notice:
This position is designated as safety sensitive. Employment is contingent upon the successful completion of all required pre-employment screenings, which may include a background check, drug and alcohol screening, and any other evaluations required by law or company policy.
Know Your Rights: Workplace Discrimination is Illegal - (click for more information)
Equal Opportunity Employer/Disability/Protected Veteran
RelaDyne and its affiliates are equal opportunity employers. All qualified applicants will receive consideration for employment without regard to race, color, religion, national origin, ethnicity, sex, pregnancy, childbirth or related medical conditions, age, disability, genetic information, protected veteran status, sexual orientation, gender identity, or any other status protected by applicable federal, state, or local law.
RelaDyne is committed to providing reasonable accommodations to qualified individuals with disabilities (including pregnancy, childbirth or other related medical conditions) to enable them to perform the essential functions of a position and to participate in the application, interview, and hiring process. If you require a reasonable accommodation to participate in the application, interview, or hiring process, please contact Human Resources at humanresources@reladyne.com.
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