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As of August 01, 2026, the average salary for a Diesel Maintenance Supervisor in Wisconsin is $75,700 per year, which breaks down to an hourly rate of $36.
However, a Diesel Maintenance Supervisor's salary can vary significantly. Here’s a look at the typical salary range:
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Diesel Maintenance Supervisor Salaries by Percentile
| Annual Salary |
Monthly Pay |
Weekly Pay |
Hourly Wage |
|
| 75th Percentile | $84,300 | $7,025 | $1,621 | $41 |
| Average | $75,700 | $6,308 | $1,456 | $36 |
| 25th Percentile | $66,700 | $5,558 | $1,283 | $32 |
Adell Cooperative - Adell, WI
Ewald Automotive Group LLC - Delafield, WI
KCO Resource Management - Milwaukee, WI
Ajulia Executive Search - Grafton, WI
A Diesel Maintenance Supervisor'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 Maintenance Supervisor'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 Engine Mechanic I | 0-1 years | $49,082 |
| Diesel Engine Mechanic II | 1-3 years | $55,163 |
| Diesel Engine Mechanic III | 3-5 years | $62,455 |
| Diesel Maintenance Supervisor | 5+ years | $75,700 |
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 Maintenance Supervisors. For example, consider the average annual salaries in these key locations:
Salaries can also vary between different cities. Major metropolitan areas or cities with a high demand for technicians often offer more competitive pay. Here are a few examples of average annual salaries in different U.S. cities:
Diesel Maintenance Supervisor salary potential scales significantly with company size. Data shows that Enterprise companies (5,000+ employees) pay the highest average salary at around $84,742. While startup companies pay approximate $71,690.
| Company Size | Employees | Average Salary |
|---|---|---|
| Startup | 1~50 | $71,690 |
| Growth Stage | 51~500 | $75,820 |
| Established | 501~5000 | $81,833 |
| Enterprise | 5000+ | $84,742 |
For Diesel Maintenance Supervisor roles, the industry you choose can affect earning potential by as much as 100% (the gap between the highest and lowest paying industries). Data shows that the Financial Services and Aerospace & Defense sectors offer the strongest compensation, at 50% above the average. In contrast, Diesel Maintenance Supervisor positions in Hospitality & Leisure or Transportation typically offer lower base pay, as these industries often view Diesel Maintenance Supervisor as a support function rather than a direct revenue driver.
| Industry Sector | Average Annual Salary | Average Hourly Rate | Pay vs.Avg |
|---|---|---|---|
| Financial Services | $113,550 | $55.0 | 50% |
Understanding how a Diesel Maintenance Supervisor'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.
| Annual Salary | Monthly Pay | Weekly Pay | Hourly Wage | |
|---|---|---|---|---|
| 75th Percentile | $84,300 | $7,025 | $1,621 | $41 |
| Average | $75,700 | $6,308 | $1,456 | $36 |
| 25th Percentile | $66,700 | $5,558 | $1,283 | $32 |
For a Diesel Maintenance Supervisor, the most direct path to higher earnings is advancing to the Truck Service Shop Operations Manager role. This promotion typically comes with a significant pay increase, bringing the average annual salary to $93,600 - a projected growth of 24% over your current level.
Ready to take the next step in your career? Browse thousands of current Diesel Maintenance Supervisor job openings on our job board. Use the search bar below to find your perfect match.
Sterling Landscape Services
Sturgeon Bay, WI
Sterling Landscape Services | Sturgeon Bay, WI
Sterling Landscape Services is seeking an experienced, organized, and motivated Maintenance Supervisor to lead our Property Maintenance Division.This posit... more
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Alpine Slicing and Cheese Conversion
Monroe, WI
Alpine Slicing and Cheese Conversion | Monroe, WI
Maintenance Supervisor Alpine Slicing Pay:$23.00 - $25.00 per hour Job Type:Full-Time Position Summary Alpine Slicing is seeking an experienced Maintenance... more
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Nestlé USA
Medford, WI
Nestlé USA | Medford, WI
Foods you love.Brands you trust.And a career that empowers you to grow.At Nestl USA, we're all working towards the same goal - to delight and deliver for o... more
5 Days Ago
Southwire
Pleasant Prairie, WI
Southwire | Pleasant Prairie, WI
Supervisor, MaintenanceApply nowDate: Feb 26, 2026Location: Pleasant Prairie, WI, US, 53158Company: Southwire Company LLCA leader in technology and innovat... more
5 Days Ago
Hon Hai Precision Industry Co. Ltd
Sturtevant, WI
Hon Hai Precision Industry Co. Ltd | Sturtevant, WI
FII USA, Inc., a Foxconn Technology Group Company, is seeking a Maintenance Supervisor to oversee maintenance operations and lead a team of technicians in ... more
5 Days Ago
Palermo Frozen Pizza Products
Milwaukee, WI
Palermo Frozen Pizza Products | Milwaukee, WI
Looking for an opportunity to lead a great maintenance team. Want to work in a sparkling climate-controlled shop and clean food plant. MAINTENANCE SUPERVIS... more
5 Days Ago
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