Diesel Service Technician Jobs in Texas
Diesel Service Technician jobs in Texas are among the most active in the country, concentrated in commercial trucking, oil and gas equipment, and heavy construction across a market that hires from entry-level shop assistants through senior master technicians. The highest volume of openings clusters in Houston, Dallas-Fort Worth, and San Antonio, where large fleets operated by employers like Ryder System, Rush Enterprises, and Penske Truck Leasing maintain continuous staffing needs. The most in-demand specialties in Texas are engine diagnostics, emissions systems, and heavy haul trailer repair. Find a role that fits below and apply directly.
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Job Summary:
Completes repairs and rebuilds on engine products in a service workshop under supervision.
Key Responsibilities:
- Applies documented procedures and policies to complete basic repairs and schedule maintenance, including preparing required parts and tools.
- Disassemble, inspect and clean engines and/or engine components.
- Assists with completion required documentation, such as work completed documentation, time sheets, warranty claims and quality forms, via handwritten forms or business system input screens.
- Completes training in line with skill and business requirements.
- Maintains work area and tools for cleanliness and proper operation.
- Ensure adherence to all relevant Health, Safety & Environmental policies, procedures and legislation and reports any issues/incidents to their supervisor.
Competencies:
- Communicates effectively - Developing and delivering multi-mode communications that convey a clear understanding of the unique needs of different audiences.
- Ensures accountability - Holding self and others accountable to meet commitments.
- Nimble learning - Actively learning through experimentation when tackling new problems, using both successes and failures as learning fodder.
- Plans and aligns - Planning and prioritizing work to meet commitments aligned with organizational goals.
- Health and Safety Fundamentals - Champions and models proactive health and safety behaviors by identifying, reporting and participating in actions to improve health and safety in order to build an interdependent culture and contribute to an injury-free workplace.
- Diagnostics Application - Translates customer complaints to develop troubleshooting plan; troubleshoots issue following guided work flows, procedures, specialized equipment such as mechanical and electronic service tools, and diagnoses computer software to isolate failed components to enable a successful repair; validates repair by duplicating complaint to ensure it has been resolved; documents results of troubleshooting in business systems to communicate what has been done for payment and historical tracking.
- Electrical Knowledge - Demonstrates knowledge of Cummins and industry standards on working with low and/or high voltage by complying with all safe work procedures including Personal Protective Equipment to create a safe work environment; applies basic electrical theories and electronics components knowledge using appropriate tools and procedures to diagnose and repair products safely and efficiently.
- Electronic Service Tool Application - Identifies the suite of available hardware and software tools required for a service event; utilizes the appropriate electronic tool set to maintain the product or diagnose and troubleshoot an issue; interprets electronic tool results or recommendations to determine next steps for service resolution.
- Mechanical Knowledge - Demonstrates knowledge of Cummins and industry standards by complying with all safe work procedures including Personal Protective Equipment to create a safe work environment; applies mechanical principles and theories using appropriate tools and procedures to diagnose and repair products safely and efficiently.
- Product Repair and Maintenance - Repairs and maintains mechanical/electrical products following guidelines, using required tools within standard repair time to ensure a quality repair; disassembles and assembles engines or power generators following guidelines, using required tools to ensure a clean and organized environment; inspects and replaces parts and components following re-use guidelines to minimize customers cost of ownership; performs progressive damage check following guidelines to restore to pre-failure condition.
- Service Documentation - Creates and verifies customer, equipment and technical information; captures specific data using required service tools; follows procedures and documents required information in the service management system in order to have an accurate record of the work done.
- Technical Escalation - Obtains product technical issue information and utilizes available resources including data management tools; elevates issues to a higher level of expertise, balancing timeliness of customer response with investigation efforts; captures all troubleshooting steps in the appropriate database in order to ensure seamless transitions and accurate response to ticket resolution in a timely manner.
- Values differences - Recognizing the value that different perspectives and cultures bring to an organization.
Education, Licenses, Certifications:
- Apprentice Trained Engine Technician (Preferred)
- Vocational diploma from relevant technical institution
- Locally valid driving permit (Preferred)
- This position may require licensing for compliance with export controls or sanctions regulations.
Experience:
Minimal level of work shop experience required.
Basic level knowledge of and/or experience with engine products.
Entry level diesel technician position.
DOT
- A current valid license is required for this role.
- Must be 18 years old with 2 years driving experience.
- This role requires a 5 year motor vehicle report, free from major violations.
Job Service
Organization Cummins Inc.
Role Category On-site with Flexibility
Job Type Technician
Min Salary $23.47
Max Salary $35.19
ReqID 2431688
Relocation Package Yes
100% On-Site No
At Cummins, we are an equal opportunity and affirmative action employer dedicated to diversity in the workplace. Our policy is to provide equal employment opportunities to all qualified persons without regard to race, gender, color, disability, national origin, age, religion, union affiliation, sexual orientation, veteran status, citizenship, gender identity and/or expression, or other status protected by law. Cummins validates the right to work using E-Verify and will provide the Social Security Administration (SSA) and, if necessary, the Department of Homeland Security (DHS), with information from each new employee’s Form I-9 to confirm work authorization. Visit http://EEOC.gov to know your rights on workplace discrimination.
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Find JobsDiesel Service Technician Jobs by City in Texas
Where Texas roles are concentrated, by current openings.
Diesel Service Technician Job Market in Texas
A snapshot from current Texas openings, updated as new roles post.
Who's Hiring
- Cummins4

- Republic Services3

- SelecTransportation Resources1

Top Industries Hiring
- Manufacturing3
- Waste Management & Environmental Services3
- Automotive2
What Texas Employers Look For
The qualifications that appear most often in diesel service technician jobs across Texas.
- ASE certification in diesel engines or medium/heavy truck repair preferred or required
- Valid Texas driver's license with ability to operate commercial vehicles on premises
- Two or more years of hands-on diesel engine diagnosis and repair experience
- Proficiency with electronic diagnostic tools including Cummins Insite and Detroit Diagnostic Link
- Ability to read and interpret OEM service manuals and wiring schematics
- Own a complete set of hand tools sufficient for diesel technician work
Diesel Service Technician Jobs in Texas: Frequently Asked Questions
How do you become a diesel service technician in Texas?
Texas does not require a state-issued license to work as a diesel service technician, so most employers hire based on certifications and hands-on experience. The clearest path is completing a diesel technology program at a Texas community college such as Houston Community College, San Jacinto College, or Texas State Technical College, then pursuing ASE certification in medium and heavy trucks. Employers across the state consistently treat ASE credentials as the primary hiring benchmark.
How much do diesel service technicians make in Texas?
Diesel service technicians in Texas earn a median of about $58,810 a year, based on May 2025 Bureau of Labor Statistics wage data, ranging from around $40,930 for the lowest 10% to over $81,660 for the top 10%. Pay rises with experience, specialty, and employer.
Which companies hire diesel service technicians in Texas?
Employers hiring diesel service technicians in Texas right now include Cummins, Republic Services, and SelecTransportation Resources, based on current listings on Migrate Mate as of June 2026. Texas's dense commercial freight corridors and active oil and gas sector mean large fleet operators and equipment dealers maintain some of the highest and most consistent technician headcounts in the country.
Which Texas cities have the most diesel service technician jobs?
Dallas, Harlingen, and Lewisville have the most diesel service technician openings in Texas. Houston's volume is driven by its role as the national center for energy and heavy equipment logistics, Dallas-Fort Worth by one of the largest freight and distribution networks in the southern United States, and San Antonio by its military installation support contracts and growing commercial fleet infrastructure.
Are there remote diesel service technician jobs in Texas?
Yes, but they're rare. Diesel service technician work is fundamentally hands-on and tied to a physical shop, fleet yard, or job site, which limits remote options. About 13% of diesel service technician openings tied to Texas are remote or hybrid as of June 2026, and those positions typically involve technical support, warranty claims, or service writing rather than direct repair work.
How can I get hired as a diesel service technician in Texas with little or no experience?
The most realistic entry path is enrolling in a diesel technology program at Texas State Technical College, San Jacinto College, or a similar Texas institution that offers employer partnerships and hands-on lab time. Large Texas fleet operators like Ryder and Rush Enterprises regularly hire lube technicians, service assistants, and tire technicians as feeder roles that transition into full diesel tech positions. Earning even one ASE student certification before applying gives candidates a measurable edge in entry-level screening.
Where can I find and apply to diesel service technician jobs in Texas?
You can find and apply to diesel service technician jobs in Texas on Migrate Mate, which lists current openings tied to Texas employers. Search the listings, find roles that match your experience and location, and apply directly to the ones that fit.
See All 8 Diesel Service Technician Jobs in Texas
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