Diesel Tech Pay · California

Diesel Mechanic Salary in California (2026)

Real pay by career stage, top employers, and schools — researched and maintained by a working tradesman. Updated 2026.

Diesel technicians keep the trucks, fleets, and heavy equipment running — and it's a trade with steady demand and a clear path to six figures for master techs. California diesel mechanics earn solid money that climbs with ASE certification and experience. Here's the real pay, the top employers, and how to get started in California.

California Diesel Technician Pay Range

$58-108k

⏱ OT adds $12-28k

Pay by Career Stage in California

Here's how diesel tech pay progresses in California — from entry-level technician to journeyman and master tech. ASE certifications are the main lever that moves you up the scale.

Entry Tech$26/hr

Journeyman$45/hr

Master Tech$55/hr

Before You Decide

Is Diesel Tech Worth It vs College?

See how a California diesel career stacks up against a four-year degree — lifetime earnings, debt, and net worth, side by side.

Run the Wealth Calculator → See the pay map →

Top Diesel Employers in California

These are employers California diesel techs rate, based on field reviews. Dealerships, fleets, and equipment shops pay differently — and master techs with ASE certs command the most. Ask around before you commit.

Penske Truck Leasing CA★ 4.0 (32 reviews)

Peterbilt of Southern CA★ 4.1 (18 reviews)

Pacific Coast Kenworth★ 4.0 (14 reviews)

Diesel Schools & Training in California

You can break into diesel through a technical program or by starting as an entry-level tech and learning on the job. These are diesel technology programs that serve California. Look for ones with strong employer connections and hands-on shop time.

Universal Technical InstituteDiesel Program (Rancho Cucamonga)

San Bernardino Valley CollegeDiesel Technology

Bakersfield CollegeDiesel Technology

How to Become a Diesel Mechanic in California

The path is fast and affordable: get a high school diploma or GED, enroll in a diesel technology program (1–2 years) or get hired as an entry-level tech, then earn ASE certifications as you go. Push toward Master Technician status — a full set of ASE diesel certs — to reach the top of the California pay scale. Many techs also get manufacturer-specific training (Cummins, Cat, Detroit) that boosts pay further.

For the full step-by-step — tools, certifications, and what the work is really like — read our full guide to becoming a diesel technician.

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Frequently Asked Questions

How much do diesel mechanics make in California?

In California, diesel technician pay ranges roughly $58-108k depending on experience and certification. Entry techs start lower, journeyman techs earn the middle, and master techs with ASE certs earn the most. OT adds $12-28k.

How long does it take to become a diesel technician in California?

Most diesel technology programs in California take 1 to 2 years (a certificate is faster, an associate degree is about two years). Many techs also start as entry-level apprentices at a fleet or dealership and learn on the job while getting paid.

Do you need ASE certification to be a diesel mechanic in California?

It's not legally required, but ASE (National Institute for Automotive Service Excellence) certifications are the industry standard and directly raise your pay. Master Technician status (a full set of ASE diesel certs) is what moves you to the top of the California pay scale.

Where do diesel technicians work in California?

Truck dealerships, fleet maintenance shops, trucking companies, construction and ag equipment dealers, and bus/transit yards all hire diesel techs in California. Local employers include Penske Truck Leasing CA, Peterbilt of Southern CA, Pacific Coast Kenworth.