Diesel Mechanic Jobs in California
Diesel Mechanic jobs in California are among the most active in the country, with consistent demand from freight and logistics networks, construction, agriculture, and public transit fleets at every level from entry-level shop technicians to senior fleet specialists. The heaviest hiring concentrates in Los Angeles, Fresno, and Sacramento, where employers like Penske Truck Leasing, Ryder System, and the California Department of Transportation maintain large ongoing operations. The most sought-after specialties include emissions diagnostics, heavy equipment repair, and preventive maintenance on Class 6 through Class 8 trucks. Find a role that fits below and apply directly.
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INTRODUCTION
Great company. Great people. Great opportunities.
If you’d like the chance to make your mark with the world’s largest equipment rental provider, come build your future with United Rentals!
ROLE AND RESPONSIBILITIES
As a Diesel Mechanic (Service Tech I), you’ll use your skills (diesel, automotive, welding or other mechanical) to perform maintenance tasks as well as minor repairs on equipment in a safe and professional manner. Every day, you can improve and challenge yourself, and if you have the desire and ambition, you’ll have the potential to work towards higher level Tech roles in our Service Department. Like every member of our team, we will rely on you to provide exceptional customer service to our customers.
What you'll do:
- Perform maintenance checks on rental equipment before and after use
- Report machine condition to Management
- Perform minor repairs of rental equipment and tools including checking oil, grease, fluids and tagging of equipment for rental ready status
- Demonstrate equipment for customers
- Assist with pick-up and delivery of equipment & parts
- Other duties assigned as needed
BASIC QUALIFICATIONS
- High School diploma or equivalent
- Valid driver's license with acceptable driving record
- Basic knowledge of construction equipment
- Strong mechanical aptitude including knowledge of tools applicable to position
- Superior customer service, teamwork and verbal/written communication skills
- Ability to frequently lift items up to 45 lbs.
This position is deemed Safety Sensitive for purposes of United Rentals’ policies and procedures.
PREFERRED QUALIFICATIONS
We don’t just “talk the talk!” We’re an award-winning company (recently named a Glassdoor Best Place to Work in 2026) that truly cares about our people - That’s why we offer best-in-class benefits and perks that will support you and your family. In addition to our health and financial plans, we also offer:
- Paid Parental Leave
- United Compassion Fund
- Employee Discount Program
- Career Development & Promotional Opportunities
- Additional Vacation Buy Up Program (US Only)
- Early Wage Access through Payactiv (US Hourly Only)
- Paid Sick Leave
- An inclusive and welcoming culture
Explore our comprehensive U.S. benefit offerings.
For Canadian benefits, click here.
United Rentals, Inc. is an Equal Opportunity Employer and makes employment decisions regardless of race, color, religion, sex, national origin, age, genetic information, citizenship status, veteran status, sexual orientation, gender identity, disability, or any other status protected by law. If you need a reasonable accommodation at any point of the application process, please email careers@ur.com for assistance.
At United Rentals, we proudly hire active duty members, veterans, reservists, and their families. The values that define your service—leadership, discipline, integrity, and teamwork—are the same values that drive our success. With many veterans already part of our team, we’re ready to help you transition into a rewarding career.
COMPENSATION RANGE
$22.90 - $46.60
See All 19 Diesel Mechanic Jobs in California
Find roles in California that match your experience and apply in just a few clicks.
Find Diesel Mechanic JobsDiesel Mechanic Jobs by City in California
Where California roles are concentrated, by current openings.
Diesel Mechanic Job Market in California
A snapshot from current California openings, updated as new roles post.
Who's Hiring
- United Rentals8

- Vulcan Materials Company3

- Diamond Environmental Services2

- Penske Truck Leasing2

- Fleet Services by Cox Automotive1

Top Industries Hiring
- Transportation & Logistics3
- Automotive2
- Construction & Real Estate2
- Consulting & Professional Services2
- Manufacturing2
What California Employers Look For
The qualifications that appear most often in diesel mechanic jobs across California.
- Valid California driver's license with a clean driving record required
- ASE certification in diesel engines or medium/heavy truck repair preferred
- Demonstrated experience diagnosing and repairing diesel engines and drivetrain systems
- Proficiency with electronic diagnostic tools such as DieselNet or Cummins Insite
- Working knowledge of California Air Resources Board emissions standards and compliance
- Ability to lift heavy components and work safely in a shop or field environment
Diesel Mechanic Jobs in California: Frequently Asked Questions
How do you become a diesel mechanic in California?
California does not require a state-issued license to work as a diesel mechanic, but most employers expect ASE certification in diesel or medium and heavy truck repair. The typical path starts with a diesel technology program at a California community college, such as those offered through the California Community Colleges system, followed by an apprenticeship or entry-level shop position. Earning ASE credentials before or shortly after starting your first job significantly strengthens your candidacy.
How much do diesel mechanics make in California?
Diesel mechanics in California earn a median of about $73,950 a year, based on May 2025 Bureau of Labor Statistics wage data, ranging from around $47,180 for the lowest 10% to over $96,730 for the top 10%. Pay rises with experience, specialty, and employer.
Which companies hire diesel mechanics in California?
Employers hiring diesel mechanics in California right now include United Rentals, Vulcan Materials Company, and Diamond Environmental Services, based on current listings on Migrate Mate as of June 2026. California's size and its heavy freight, construction, and public transit industries mean that fleet operators and maintenance contractors post openings year-round across the state.
Which California cities have the most diesel mechanic jobs?
Los Banos, Salinas, and San Jose have the most diesel mechanic openings in California. Los Angeles drives volume through its massive port operations and regional distribution networks, Fresno serves the Central Valley's agriculture and trucking corridors, and Sacramento combines state fleet maintenance with a growing logistics sector anchored by major distribution centers along the I-5 and Highway 99 corridors.
Are there remote diesel mechanic jobs in California?
Yes, but they're rare. Diesel mechanics work hands-on with heavy equipment, so the vast majority of roles require full on-site presence. About 0% of diesel mechanic openings tied to California are remote or hybrid as of June 2026, and those positions typically involve parts sourcing coordination, service writing, or technical support rather than direct mechanical work.
How can I get hired as a diesel mechanic in California with little or no experience?
The most realistic entry path is a lube technician or fleet service assistant role at a large California fleet operator or dealership, which gives hands-on exposure without requiring full diagnostic credentials. Companies like Penske and Ryder run formal technician apprenticeship programs at California locations that accept candidates without prior experience. Completing a diesel technology certificate through a California community college and earning even a single ASE Student Certification before applying gives you a clear edge over candidates with no credentials.
Where can I find and apply to diesel mechanic jobs in California?
You can find and apply to diesel mechanic jobs in California on Migrate Mate, which lists current openings from employers hiring in the state right now. Search the listings for roles that match your experience level and location, then apply directly to the ones that fit.
See All 19 Diesel Mechanic Jobs in California
Find roles in California that match your experience and apply in just a few clicks.
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