Manufacturing & Jobs

The economy moves on diesel and the industry is responsible for generating employment opportunities for millions of Americans

Diesel engines are the primary technology driving one out of every two sectors of the US economy. Nearly 900,000 of the latest generation heavy-duty advanced diesel engines are produced in 13 states across the country. The production of these engines, and the maintenance of the technology, sustain over 1.2 million well-paid jobs.


US manufacturing facilities across 13 states are responsible for producing almost 900,000 heavy-duty clean diesel engines annually that power these vehicles and equipment.

Ranking State Number of Heavy-Dutry Diesel Engines
#1 NC 327,500
#2 IN 160,985
#3 MI 109,000
#4 OH 70,000
#5 NY 76,400
#6 MD 40,000
#7 TX 29,800
#8 IA 28,750
#9 MS 28,700
#10 GA 12,700
#11 AL 7,200
#12 UT 1,600
#13 SC 940

SOURCE: Rhein & Associates

The latest generation of diesel engine technology incorporates the latest innovations that reduce emissions to near-zero levels, delivering clean air and climate benefits to communities across the country. In many applications, these engines also reduce fuel use that save costs for vehicle and equipment owners. As of 2022, more than half of all commercial vehicles were powered by the latest advanced diesel technology and have contributed to reducing emissions of oxides of nitrogen (a smog forming compound), while significantly reducing greenhouse gas emissions. 


Producing and servicing diesel engines directly generates more than $183 billion in annual economic activity and provides 1.25 million jobs according to the most recent analysis. Workers in the diesel technology sector typically earn a wage 60% higher than the national average.

The Association of Equipment Manufacturers recently concluded that the production of diesel-powered equipment offers many Americans a well-paying job and benefit communities across the country. The manufacture of equipment provides 1.3 million jobs and $158 billion in economic value. The average wage in the industry exceeds the national average, paying workers about $78,000 per year.

According to the U.S. Department of Labor, there are more than 275,000 diesel engine mechanics employed across the country responsible for servicing, maintaining and rebuilding diesel engines, vehicles and equipment. Career opportunities for skilled diesel technicians are growing, with the sector expected to need 8% more workers between 2020 and 2030.


About 3.2 billion gallons of advanced renewable biodiesel fuels were produced in the United States in 2021. Producing these cleaner fuels supports an estimated 64,000 jobs that are created through the biodiesel industry in the country, according to the Clean Fuels Alliance America. Biodiesel and renewable diesel fuels are suitable for any diesel engine and their use reduces the levels of greenhouse gas emissions from the nation’s transportation network by a minimum of 57%.