As of August 01, 2026, the average salary for a Diesel Technician I in Walnut, CA is $54,390 per year, which breaks down to an hourly rate of $26.
However, a Diesel Technician I's salary can vary significantly. Here’s a look at the typical salary range:
Compensation Planning
Develop a Job Description
Pay Equity
2026 Compensation Trend
Recruit with AI
AI-Powered HR
A Diesel Technician I's salary isn't a fixed number. It's shaped by several important factors. Below, we'll explore how your years of experience, geographic location, and company size can directly affect your earning potential.
Experience is a primary driver of a Diesel Technician I's salary. As you build your skills and take on more complex tasks, your compensation generally increases. Here's how the average salary grows at different career stages:
| Job Role | Years of Experience | Average Salary |
|---|---|---|
| Diesel Technician I | 0-1 years | $54,387 |
| Diesel Engine Mechanic II | 1-3 years | $61,125 |
| Diesel Engine Mechanic III | 3-5 years | $69,205 |
| Diesel Maintenance Supervisor | 5+ years | $83,881 |
What Am I Worth?
Diesel Technician I salary potential scales significantly with company size. Data shows that Enterprise companies (5,000+ employees) pay the highest average salary at around $60,886. While startup companies pay approximate $51,509.
| Company Size | Employees | Average Salary |
|---|---|---|
| Startup | 1~50 | $51,509 |
| Growth Stage | 51~500 | $54,476 |
| Established | 501~5000 | $58,797 |
| Enterprise | 5000+ | $60,886 |
For Diesel Technician I roles, the industry you choose can affect earning potential by as much as 40% (the gap between the highest and lowest paying industries). Data shows that the Aerospace & Defense and Biotechnology sectors offer the strongest compensation, at 20% above the average. In contrast, Diesel Technician positions in Transportation or Telecom typically offer lower base pay, as these industries often view Diesel Technician I as a support function rather than a direct revenue driver.
| Industry Sector | Average Annual Salary | Average Hourly Rate | Pay vs.Avg |
|---|---|---|---|
| Aerospace & Defense | $65,268 | $31.0 | 20% |
| Biotechnology | $65,268 | $31.0 | 20% |
| Business Services | $65,268 | $31.0 | 20% |
| Chemicals | $65,268 | $31.0 | 20% |
| Construction | $65,268 | $31.0 | 20% |
Understanding how a Diesel Technician I's annual salary breaks down can help with budgeting. Below, you can see the average hourly rate, weekly pay, and monthly pay for this role. Use the buttons to switch between different pay periods.
Last Updated on August 01, 2026Promotions are the fastest way to increase your earnings. As a Diesel Technician I, you have the following paths for advancement. The table below compares the salary raises for common next-step roles. By comparing these figures, you can choose the career path that best meets your financial goals.
| Next Step Role | Estimate Salary | Projected Raise |
|---|---|---|
| Diesel Engine Mechanic II | $61,200 | 13% |
| Automotive Service Technician II | $60,200 | 11% |
Ready to take the next step in your career? Browse thousands of current Diesel Technician I job openings on our job board. Use the search bar below to find your perfect match.
Get a Salary Increase
Analyze the market and your qualifications to negotiate your salary with confidence.
Search Job Openings
Search thousands of open positions to find your next opportunity.
Adjust Employee Salary
Individualize employee pay based on unique job requirements and personal qualifications.
Price My Industry Jobs
Get the latest market price for benchmark jobs and jobs in your industry.
Use Salary.com's Cost of Living Calculator to find out what income you need to maintain your standard of living in a different city and how much more or less money you need to budget for basic expenses.
Explore Cost of Living CalculatorSalary.com experts will help you thrive your workplaces.
Salary.com provides salary survey data for thousands of industry Jobs.
Salary.com salary estimates, histograms, trends, and comparisons are derived from both employer job postings and third-party data sources. We also provide multiple percentiles of salary information for your reference, click here to know Why the Salary Midpoint Formula Is Crucial to Getting Pay Equity Right. With more online, real-time compensation data than any other website, Salary.com helps you determine your exact pay target.
Salary.com's CompAnalyst platform offers:
