Diesel Technician; Medium-Duty Trucks

Who we are

Western Truck Exchange is the leading retailer of used and new medium-duty commercial trucks in Los Angeles. Established in 1922, we’re one of California’s oldest licensed dealerships—and we’re proud to be an International dealership with a service team focused on doing the job right, safely, and professionally.

We’re building a shop where technicians are supported, respected, and rewarded for skill—especially those who want to grow into (or deepen) a specialty.

• Opportunity to earn $100,000+ annually with a competitive wage system
• Profit Sharing Plan
• Rapid Improvement Plan incentives (quarterly opportunities to earn extra cash)
• Paid training
• Employee referral bonus
• CDL reimbursement support
• Uniform allowance
• Employee discount and paid time off

• Professional standards and real advancement paths
• We are certified for CAT and Cummins repairs, and qualified for Allison maintenance and rebuild services (experience with these is strongly preferred).

You’ll diagnose, repair, and maintain medium-duty trucks with a focus on safety, quality, and clear communication.

• Perform preventative maintenance inspections, oil changes, chassis lubrication, and identify worn/damaged parts
• Repair/diagnose major systems with minimal supervision (based on skill level), including clutches, electrical systems, hydraulic/air brake systems, HVAC, instruments/gauges, and PM services
• Diagnose/repair major components including gasoline and diesel engines, drivetrain/powertrain (differentials, transmissions, driveshafts, PTOs, wheel ends), engine bolt-on components (turbochargers, fan clutches, injectors/fuel system components), and electronics (ECM/ECU/sensors)
• Road test vehicles as needed to confirm concerns and verify repair quality

• 5+ years of practical experience in mechanical inspections and repairs
• High school diploma or equivalent
• Proficiency with shop tools/hand tools; ability to supply a basic set of hand tools (as applicable by role/level)
• Valid driver’s license; must have or be able to obtain a CDL
• Comfortable working in non–climate controlled conditions
• Reliable attendance and punctuality
• Basic computer skills for maintenance systems and documentation
• Willingness to travel as needed (customer yards and training sites)

• Experience with diagnostic tools
• Experience with CAT and Cummins engine diagnostics/repairs (certified repair environment a plus)
• Experience with Allison transmission maintenance and rebuild-related services
• Experience working on International and Mitsubishi Fuso medium-duty platforms
• Vocational/technical certifications

• Complete and submit an application
• Interviews: typically at least two conversations to confirm fit both ways
• Background check (employment/education/criminal history) and drug screening
• Selected candidates may receive a brief follow-up questionnaire to indicate their level of proficiency across key technical skills and systems

We are an equal opportunity employer and prohibit discrimination/harassment in accordance with applicable laws.