Diesel mechanics keep trucks, buses, heavy equipment, and generators running. As the backbone of freight and construction fleets, skilled diesel technicians are in steady, well-paid demand — and modern diesels are as much computer diagnostics as they are wrenches.
PM work, basic repairs, learning diagnostics under senior techs. ~$18–$22/hr.
After ASE certs. Independent engine and system repairs. $25–$32/hr.
Toughest diagnostics and rebuilds. $32–$42/hr.
Leading a shop or running a mobile repair business.
Your skills and interests may align with more than one trade. Compare before committing.
Our Salary Compare tool shows Diesel Mechanic wages at every experience level — and compares them against other trades and a 4-year degree path.
Compare Diesel Mechanic Salaries →Registered apprenticeships pay you from day one. There is no national list of open seats — programs recruit on their own schedules. The way in is to find the programs near you and ask when they take applications.
Find programs near you → Browse Trade SchoolsThe DOL Partner Finder lists registered apprenticeship sponsors — employers and organizations that run programs. Search Diesel Mechanic and your state, then call the ones near you and ask when they accept applications. Some open once a year.y or ZIP to see what's open near you.