Heavy Duty Mechanic

Thompson Pipe Group • Rialto, CA

2d • $34

About The Position

The Heavy Duty Diesel Mechanic is responsible for the inspection, diagnosis, repair, and preventative maintenance of heavy-duty diesel trucks, trailers, construction equipment, and other diesel-powered vehicles and machinery. This role ensures all equipment operates safely, efficiently, and in compliance with manufacturer specifications and regulatory standards.

Requirements

• High school diploma or GED required; technical school or apprenticeship in diesel technology preferred.
• Minimum 3–5 years of verifiable experience as a heavy-duty diesel mechanic (truck, trailer, or heavy equipment).
• Strong knowledge of diesel engines, air brakes, hydraulics, and electronic control systems.
• Valid driver's license required
• Ability to read, write, and perform basic mathematics.
• Must own or be willing to acquire a basic set of hand and power tools.
• Ability to lift up to 75 lbs. occasionally and work in various weather conditions.

Nice To Haves

• Excellent mechanical aptitude and troubleshooting skills.
• Proficiency with diagnostic software and scan tools.
• Strong attention to detail and commitment to quality workmanship.
• Ability to work independently and as part of a team.
• Good communication and customer service skills.
• Reliable, safety-conscious, and able to work flexible hours including occasional overtime or weekends.

Responsibilities

• Perform complete diagnostic testing on diesel engines, transmissions, drivetrains, hydraulic systems, air brakes, steering, suspension, electrical, and HVAC systems using computer diagnostic tools and traditional methods.
• Conduct preventative maintenance services including oil changes, filter replacements, tire services, brake inspections, and fluid services.
• Diagnose and repair mechanical, electrical, hydraulic, and computerized system failures on heavy-duty trucks, and off-road equipment.
• Disassemble, overhaul, and reassemble diesel engines, transmissions, and major components as needed.
• Perform welding, fabrication, and custom repairs when required.
• Test drive or operate vehicles and equipment to verify repairs and ensure proper performance.
• Maintain accurate records of all services, repairs, parts used, and time spent using repair order systems.
• Read and interpret technical manuals, schematics, and service bulletins.
• Adhere to all safety protocols, shop procedures, and environmental regulations (including proper handling of hazardous materials).
• Provide emergency field service and roadside repairs as assigned.

Benefits

• Thompson offers a variety of benefit plans and a company-matched 401K retirement plan
• Life and Supplement Life
• Employee Discounts
• Paid Holidays
• Company Events
• Training and Development
• Career Advancement Opportunities

What This Job Offers

• Job Type: Full-time
• Career Level: Mid Level
• Education Level: High school or GED
• Number of Employees: 101-250 employees