As of May 01, 2026, the average hourly rate for a Diesel Mechanic I in the United States is $24, which translates to an annual salary of about $49,889.
However, the hourly wage can vary significantly based on several factors. Here’s a detailed look at the typical pay range per hour:
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A Diesel Mechanic 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 Mechanic 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 Mechanic I | 0-1 years | $49,889 |
| Diesel Mechanic II | 1-3 years | $56,069 |
| Diesel Mechanic III | 3-5 years | $63,464 |
| Diesel Mechanic Supervisor | 5+ years | $76,914 |
What Am I Worth?
Your salary can change significantly depending on where you work. States with a higher cost of living and strong industrial sectors often pay more to attract Diesel Mechanic Is. For example, consider the average annual salaries in these key locations:
Understanding how a Diesel Mechanic 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 May 01, 2026Salaries for a Diesel Mechanic I can change over time, reflecting shifts in market demand and the overall economy. The median salary decreased from $43,895 in 2023 to around $43,801 in 2025, reflecting changes in demand, location, experience, and the wider economy. For a detailed analysis of Diesel Mechanic I salary trends, .
| Year | Average Annual Salary |
|---|---|
| 2022 |
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| 2023 | $43,895 |
| 2024 | $44,039 |
| 2025 | $43,801 |
| 2026 |
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| 2027 |
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Performs inspection, maintenance, repairs, and overhauls of diesel engines. Troubleshoots and diagnoses problems. Utilizes computer electronics systems to interpret failure modes. Replaces and/or refurbishes parts. Maintains maintenance logs according to requirements. Ensures services provided follow all quality standards and safety procedures. May perform DOT annual inspections on vehicles. Typically requires a high school diploma. Typically requires Commercial Driver License (CDL) - Class A. Typically requires a Certificate in Automotive & Diesel Technology. Typically reports to a supervisor. Works under the close direction of senior personnel in the functional area. Possesses a moderate understanding of general aspects of the job. May require 0-1 year of general work experience.
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.
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