What are the main factors that influence a Diesel Engine Mechanic I's salary?

The primary factors are: 1) Experience Level, 2) Geographic Location, 3) Education/Skills, 4) Company Size & Industry

What industry pays the highest salary for Diesel Engine Mechanic I?

The Aerospace & Defense industry offers the highest average compensation for Diesel Engine Mechanic I roles, with salaries approximately 20% above the market median.

How does experience change A Diesel Engine Mechanic 's salary?

A Diesel Engine Mechanic 's salary grows with experience: a Diesel Engine Mechanic I (0-1 years)earns $50,529, a Diesel Engine Mechanic II (1-3 years)earns $56,789, a Diesel Engine Mechanic III (3-5 years)earns $64,296, a Diesel Maintenance Supervisor (5+ years)earns $77,931,

What are the highest paying states for a Diesel Engine Mechanic I?

Diesel Engine Mechanic I salary varies significantly by state. The top 3 highest paying states for Diesel Engine Mechanic I roles are District of Columbia $55,300, California $55,100, Massachusetts $54,400. These tech hubs typically pay 10-15% above the national average.

How much do different types of Diesel Engine Mechanic roles make?

Salaries for Diesel Engine Mechanic level roles vary by specialization: Diesel Mechanic Manager: $95,125; Diesel Mechanic Supervisor: $76,954; Diesel Engine Mechanic III: $63,500; Diesel Mechanic III: $63,490; Diesel Engine Mechanic II: $56,100.

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Diesel Engine Mechanic I Salary in Delaware

How much does a Diesel Engine Mechanic I make in Delaware?

As of August 01, 2026, the average salary for a Diesel Engine Mechanic I in Delaware is $50,600 per year, which breaks down to an hourly rate of $24.

However, a Diesel Engine Mechanic I's salary can vary significantly. Here’s a look at the typical salary range:

Top Earners (90th percentile): $60,152
Majority Range (25th-75th percentile): $45,800 to $55,600
Entry-Level (10th percentile): $41,430

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Diesel Engine Mechanic I Salaries by Percentile

	Annual Salary	Monthly Pay	Weekly Pay	Hourly Wage
75th Percentile	$55,600	$4,633	$1,069	$27
Average	$50,600	$4,217	$973	$24
25th Percentile	$45,800	$3,817	$881	$22

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Key Factors That Influence Diesel Engine Mechanic I Salaries

A Diesel Engine 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.

How Experience Level Affects Diesel Engine Mechanic Salaries?

Experience is a primary driver of a Diesel Engine 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:

Diesel Engine Mechanic I (0-1 years): $50,529
Diesel Engine Mechanic II (1-3 years): $56,789
Diesel Engine Mechanic III (3-5 years): $64,296
Diesel Maintenance Supervisor (5+ years): $77,931

Job Role	Years of Experience	Average Salary
Diesel Engine Mechanic I	0-1 years	$50,529
Diesel Engine Mechanic II	1-3 years	$56,789
Diesel Engine Mechanic III	3-5 years	$64,296
Diesel Maintenance Supervisor	5+ years	$77,931

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What Am I Worth?

How Do Diesel Engine Mechanic I Salaries Vary from State to State?

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 Engine Mechanic Is. For example, consider the average annual salaries in these key locations:

District of Columbia: $55,300.
California: $55,100.
Massachusetts: $54,400.

District of Columbia $55,300 California $55,100 Massachusetts $54,400 Washington $54,200 New Jersey $54,100 Alaska $54,100 Connecticut $53,400 New York $53,100

Hawaii $52,200 Rhode Island $51,800 Maryland $51,500 Minnesota $51,100 Colorado $51,000 Illinois $50,900 Oregon $50,700 Delaware $50,600

New Hampshire $50,500 Virginia $50,300 Pennsylvania $49,700 Nevada $49,400 North Dakota $49,300 Michigan $49,200 Wisconsin $49,100 Vermont $49,000

Arizona $48,700 Maine $48,700 Texas $48,700 Ohio $48,600 Georgia $48,200 Indiana $47,900 Wyoming $47,900 Utah $47,800

Iowa $47,800 Kansas $47,600 Louisiana $47,500 North Carolina $47,500 Missouri $47,500 Florida $47,300 Montana $47,200 Nebraska $47,100

Kentucky $47,000 South Carolina $46,800 Tennessee $46,700 Idaho $46,600 New Mexico $46,300 Oklahoma $46,200 Alabama $45,900 South Dakota $45,400

Arkansas $45,100 West Virginia $45,000 Mississippi $44,500

Top Paying Cities for Diesel Engine Mechanic Is

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:

Lincoln: $50,400
Little Creek: $50,700
Magnolia: $50,600

Lincoln, DE $50,400 Little Creek, DE $50,700 Magnolia, DE $50,600 Milford, DE $50,500 Marydel, DE $50,600 Millsboro, DE $50,100 Millville, DE $50,200 Milton, DE $50,300

Nassau, DE $50,300 Ocean View, DE $50,200 Rehoboth Beach, DE $50,300 Seaford, DE $50,300 Selbyville, DE $50,100 Smyrna, DE $50,800 Viola, DE $50,500 Woodside, DE $50,700

Bear, DE $50,500 Newark, DE $50,500 Claymont, DE $50,600 Delaware City, DE $50,600 Hockessin, DE $50,500 Kirkwood, DE $50,600 Middletown, DE $50,600 Montchanin, DE $50,500

New Castle, DE $50,500 Odessa, DE $50,600 Port Penn, DE $50,600 Rockland, DE $50,500 Saint Georges, DE $50,600 Townsend, DE $50,600 Winterthur, DE $50,500 Lewes, DE $50,300

Wilmington, DE $50,500 Dover, DE $50,700 Dover Afb, DE $50,500 Bethany Beach, DE $50,200 Bethel, DE $50,200 Bridgeville, DE $50,300 Camden Wyoming, DE $50,600 Cheswold, DE $50,700

Clayton, DE $50,700 Dagsboro, DE $50,100 Delmar, DE $50,000 Ellendale, DE $50,200 Felton, DE $50,500 Fenwick Island, DE $50,100 Frankford, DE $50,000 Frederica, DE $50,500

Georgetown, DE $50,100 Greenwood, DE $50,300 Harbeson, DE $50,200 Harrington, DE $50,400 Hartly, DE $50,600 Houston, DE $50,300 Kenton, DE $50,700 Laurel, DE $50,100

Yorklyn, DE $50,500

Diesel Engine Mechanic I Salary by Company Size: Startups vs. Enterprise

Diesel Engine Mechanic I salary potential scales significantly with company size. Data shows that Enterprise companies (5,000+ employees) pay the highest average salary at around $56,644. While startup companies pay approximate $47,919.

Diesel Engine Mechanic I Salary by Company Size

Company Size	Employees	Average Salary
Startup	1~50	$47,919
Growth Stage	51~500	$50,680
Established	501~5000	$54,700
Enterprise	5000+	$56,644

Diesel Engine Mechanic I Salary by Industry: Top Paying Sectors

For Diesel Engine Mechanic 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 Engine Mechanic positions in Transportation or Telecom typically offer lower base pay, as these industries often view Diesel Engine Mechanic I as a support function rather than a direct revenue driver.

The top paying industries for a Diesel Engine Mechanic I

Industry Sector	Average Annual Salary	Average Hourly Rate	Pay vs.Avg
Aerospace & Defense	$60,720	$29.0	20%
Biotechnology	$60,720	$29.0	20%
Business Services	$60,720	$29.0	20%
Chemicals	$60,720	$29.0	20%
Construction	$60,720	$29.0	20%

Diesel Engine Mechanic I Salary: Hourly Rate, Weekly Pay, and Monthly Pay

Understanding how a Diesel Engine 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 August 01, 2026

$45,800

Average $50,600/year

$55,600

$3,817

Average $4,217/month

$4,633

$881

Average $973/week

$1,069

$22

Average $24/hour

$27

	Annual Salary	Monthly Pay	Weekly Pay	Hourly Wage
75th Percentile	$55,600	$4,633	$1,069	$27
Average	$50,600	$4,217	$973	$24
25th Percentile	$45,800	$3,817	$881	$22

Diesel Engine Mechanic I Salary Growth & Career Path

Diesel Engine Mechanic I

Diesel Engine Mechanic II

Automotive Service Technician II

Truck Service Shop Operations Manager

Automotive Service Technician III

Promotions are the fastest way to increase your earnings. As a Diesel Engine Mechanic 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.

Diesel Engine Mechanic I Salary Growth and Career Path
Next Step Role	Estimate Salary	Projected Raise
Diesel Engine Mechanic II	$56,800	12%
Automotive Service Technician II	$55,900	10%

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Ready to take the next step in your career? Browse thousands of current Diesel Engine Mechanic I job openings on our job board. Use the search bar below to find your perfect match.

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Diesel Engine Mechanic I Salary in Delaware

How much does a Diesel Engine Mechanic I make in Delaware?

Key Factors That Influence Diesel Engine Mechanic I Salaries

How Experience Level Affects Diesel Engine Mechanic Salaries?

How Do Diesel Engine Mechanic I Salaries Vary from State to State?

Top Paying Cities for Diesel Engine Mechanic Is

Diesel Engine Mechanic I Salary by Company Size: Startups vs. Enterprise

Diesel Engine Mechanic I Salary by Company Size

Diesel Engine Mechanic I Salary by Industry: Top Paying Sectors

The top paying industries for a Diesel Engine Mechanic I

Diesel Engine Mechanic I Salary: Hourly Rate, Weekly Pay, and Monthly Pay

Diesel Engine Mechanic I Salary Growth & Career Path

Salaries of jobs related to Diesel Engine Mechanic I

Find Your Next Diesel Engine Mechanic I Job

Cost of Living In Delaware

Where Does Our Salary Data Come From?

Are you an HR manager or compensation specialist?