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Diesel Maintenance Supervisor Salary in the United States

How much does a Diesel Maintenance Supervisor make in the United States?

As of September 01, 2026, the average salary for a Diesel Maintenance Supervisor in the United States is $76,300 per year, which breaks down to an hourly rate of $37.

However, a Diesel Maintenance Supervisor's salary can vary significantly. Here’s a look at the typical salary range:

  • Top Earners (90th percentile): $92,730
  • Majority Range (25th-75th percentile): $67,100 to $84,900
  • Entry-Level (10th percentile): $58,724

Key Factors That Influence Diesel Maintenance Supervisor Salaries

A Diesel Maintenance Supervisor's salary isn't a fixed number. It's shaped by several important factors. Below, we'll explore how geographic location and company size can directly affect your earning potential.

Top Paying Cities for Diesel Maintenance Supervisors

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:

  • San Jose: $96,200
  • San Francisco: $95,100
  • Oakland: $93,100

What Skills Can Increase a Diesel Maintenance Supervisor's Salary?

Demanded Skills for the Role:

  • Customer Service (Mentioned in 8.13% Job Postings): Customer service is the provision of service to customers before, during and after a purchase. The perception of success of such interactions is dependent on employees "who can adjust themselves to the personality of the guest". Customer service concerns the priority an organization assigns to customer service relative to components such as product innovation and pricing. In this sense, an organization that values good customer service may spend more money in training employees than the average organization or may proactively interview customers for feedback. From the point of view of an overall sales process engineering effort, customer service plays an important role in an organization's ability to generate income and revenue. From that perspective, customer service should be included as part of an overall approach to systematic improvement. One good customer service experience can change the entire perception a customer holds towards the organization.
  • Customer Satisfaction (Mentioned in 3.78% Job Postings): Customer satisfaction (often abbreviated as CSAT, more correctly CSat) is a term frequently used in marketing. It is a measure of how products and services supplied by a company meet or surpass customer expectation. Customer satisfaction is defined as "the number of customers, or percentage of total customers, whose reported experience with a firm, its products, or its services (ratings) exceeds specified satisfaction goals." The Marketing Accountability Standards Board (MASB) endorses the definitions, purposes, and constructs of classes of measures that appear in Marketing Metrics as part of its ongoing Common Language in Marketing Project. In a survey of nearly 200 senior marketing managers, 71 percent responded that they found a customer satisfaction metric very useful in managing and monitoring their businesses. It is seen as a key performance indicator within business and is often part of a Balanced Scorecard. In a competitive marketplace where businesses compete for customers, customer satisfaction is seen as a key differentiator and increasingly has become a key element of business strategy.
  • Installation (Mentioned in 3.21% Job Postings): The action or process of installing someone or something, or of being installed. the act of installing the state of being installed, something that is installed for use.
Skills Demand Percentage
Customer Service 8.13%
Customer Satisfaction 3.78%
Installation 3.21%

What skills can make your compensation higher?

Mastering certain specialized skills can lead to a significant increase in pay. Here are examples of skills and the potential impact they can have on a Diesel Maintenance Supervisor's salary.

  • Health Assessment: Can increase your salary by up to 15%.
  • Expense Control: Can increase your salary by up to 12%.
  • Technical Services: Can increase your salary by up to 9%.
Skill Salary Salary % Increase
Health Assessment $87,745
15%
Expense Control $85,456
12%
Technical Services $83,167
9%

Diesel Maintenance Supervisor Salary by Company Size: Startups vs. Enterprise

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 $85,268. While startup companies pay approximate $72,128.

Diesel Maintenance Supervisor Salary by Company Size

Company Size Employees Average Salary
Startup 1~50 $72,128
Growth Stage 51~500 $76,283
Established 501~5000 $82,338
Enterprise 5000+ $85,268

Diesel Maintenance Supervisor Salary by Industry: Top Paying Sectors

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.

The top paying industry for a Diesel Maintenance Supervisor

Industry Sector Average Annual Salary Average Hourly Rate Pay vs.Avg
Financial Services$114,450$55.050%

Diesel Maintenance Supervisor Salary: Hourly Rate, Weekly Pay, and Monthly Pay

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.

Last Updated on September 01, 2026
$67,100
Average $76,300/year
$84,900
$5,592
Average $6,358/month
$7,075
$1,290
Average $1,467/week
$1,633
$32
Average $37/hour
$41
Annual Salary Monthly Pay Weekly Pay Hourly Wage
75th Percentile $84,900 $7,075 $1,633 $41
Average $76,300 $6,358 $1,467 $37
25th Percentile $67,100 $5,592 $1,290 $32

Diesel Maintenance Supervisor Salary Growth & Career Path

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 $95,200 - a projected growth of 25% over your current level.

Most common benefits for Diesel Maintenance Supervisor

  • Social Security
  • 401 (k)
  • Disability
  • Healthcare
  • Pension
  • Time Off (days)

Common company salaries for Diesel Maintenance Supervisor

Here are companies hiring for Diesel Maintenance Supervisor and their salaries, click below for more details.

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FAQ about Diesel Maintenance Supervisor

1. What industry pays the highest salary for Diesel Maintenance Supervisor?

The Financial Services industry offers the highest average compensation for Diesel Maintenance Supervisor roles, with salaries approximately 50% above the market median.

2. What is the highest salary of a Supervisor?

The highest salary for a Diesel Maintenance Supervisor is $87,900. Salaries above this amount are considered outliers. The minimum salary for this position is $69,200, while the midpoint salary is $80,100.

3. Is supervisor job stressful?

As a Diesel Maintenance Supervisor, the role comes with significant responsibilities and expectations, which can lead to stress. The salary range for this position is between $69,200 and $87,900, reflecting the level of expertise required. Managing a team and ensuring operational efficiency can be demanding, impacting both health and performance.

4. Can a diesel mechanic make 100k a year?

While some diesel mechanics can earn over $100,000 annually, the salary for a Diesel Maintenance Supervisor typically ranges from $69,200 to $87,900, with a mid-salary of $80,100. This indicates that while high earnings are possible, they are not the norm for all diesel mechanics.

5. What is the difference between service manager and service supervisor?

Supervisors focus on daily operations and employee activities, while managers establish expectations and outcomes. Managers oversee resource management, including budget and personnel, determining how to allocate these resources effectively. In terms of compensation, Diesel Maintenance Supervisors earn between $69,200 and $87,900, with a median salary of $80,100.

6. Can a mechanic make 200k a year?

While some automotive jobs can offer high salaries, diesel maintenance supervisors typically earn between $69,200 and $87,900 annually, with a median salary of $80,100. Achieving a salary of $200,000 as a mechanic is unlikely, as it exceeds the typical earnings in this field.

7. What is the highest paid mechanic in USA?

The highest paid mechanic roles in the USA include positions like BMW Service Technician, with salaries reaching up to $125,000 per year. In contrast, a Diesel Maintenance Supervisor typically earns between $69,200 and $87,900 annually, with a mid-salary of $80,100. Other high-paying roles include Master Technician and ASE Certified Technician, reflecting a diverse salary range in the automotive field.

Where Does Our Salary Data Come From?

Salary.com provides salary estimates, histograms, trends, and comparisons using data from employer job postings and third-party sources.

We offer detailed salary information across multiple percentiles for your reference. (Click here to learn Why the Salary Midpoint Formula Is Crucial for Achieving Pay Equity.)

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