Mobile Diesel Mechanic — On-Site Fleet Repair Pro

A Plus Mobile Fleet Service Inc; Brea (CA); On-site; USD 60,000 - 95,000; Full time

Job summary

A Plus Mobile Fleet Service Inc is seeking a skilled Mobile Diesel Mechanic to join our team in Brea, CA. This hands-on role requires working independently to keep commercial fleets running at peak performance.

You will diagnose and repair diesel engines on-site at customer locations, perform preventive maintenance, inspect brakes per DOT, and document all services. If you have experience with heavy-duty engines and diagnostic tools, we want you.

Qualifications

• Experience as a diesel mechanic, preferably mobile or fleet service.
• Strong knowledge of heavy-duty engines (Cummins, Detroit, PACCAR).
• Proficient with diagnostic software and tools.
• CDL is a plus; valid driver’s license required.
• Ability to work independently in the field.
• Familiarity with DOT compliance and safety regulations.

Responsibilities

• Diagnose, repair, and perform preventive maintenance on diesel engines at customer sites.
• Troubleshoot heavy-duty trucks and trailers.
• Inspect brakes per DOT regulations.
• Service electrical, cooling, transmissions, and drivetrains.
• Complete work orders and document parts used.
• Maintain mobile service truck and inventory.
• Communicate repair status and recommendations to customers.

Skills

Diesel mechanic

Mobile fleet service

Heavy-duty engines

Diagnostic software

CDL

Driver's license

Job description

A Plus Mobile Fleet Service Inc is seeking a skilled Mobile Diesel Mechanic to join our team in Brea, CA. This hands-on role requires working independently to keep commercial fleets running at peak performance.

You will diagnose and repair diesel engines on-site at customer locations, perform preventive maintenance, inspect brakes per DOT, and document all services. If you have experience with heavy-duty engines and diagnostic tools, we want you.