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Heavy-Duty Diesel Engine Manufacturing in the US Industry Data and Analysis
Manufacturing trucks, locomotives and construction equipment coincides with the need for heavy-duty engines. A rise in freight distribution led to the expansion of non-employer enterprises, particularly within the trucking industry, which in turn supported truck manufacturing and boosted engine sales. Fiscal spending until the end of 2022 buoyed consumer spending, aiding recovery from previous economic downturns. Still, rising inflation prompted the Federal Reserve to hike interest rates, increasing borrowing costs. During this time, consumers scaling back on spending exerted pressure on distribution services and reduced demand for engine manufacturing. However, more recently, the emergence of e-commerce and online retail has expanded, creating more demand for trucking as the main form of transportation. Additionally, the rate cuts experienced throughout 2024 and 2025 have led to increased construction and infrastructure activity in the US, thereby increasing demand for diesel-based machinery and automobiles. This, along with the emergence of tariffs and counter-tariffs, has decreased overall import activity, giving domestic producers an opportunity to recapture market share. As a result of these factors, revenue is expected to increase at a five-year CAGR of 5.7% reaching $42.2 billion through the end of 2025, with an uptick of 2.6% in 2025.
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What's included in this industry analysis
IBISWorld's research coverage on the Heavy-Duty Diesel Engine Manufacturing industry in the United States includes market sizing, forecasting, data and analysis from 2015-2030. The most recent publication was released November 2025.
About this industry
What's this industry report about?
The Heavy-Duty Diesel Engine Manufacturing industry in the United States operates under the NAICS industry code OD5644. This industry manufactures heavy-duty diesel engines. A diesel engine is an internal combustion engine that uses the heat of compression to initiate ignition and burn fuel. This fuel is then injected into the combustion chamber. These engines are used in highway vehicles (i.e. freight trucks) and machinery. Related terms covered in the Heavy-Duty Diesel Engine Manufacturing industry in the United States include environmental protection agency (epa), diesel and heavy trucks.
What's included in this industry?
Products and services covered in Heavy-Duty Diesel Engine Manufacturing industry in the United States include Heavy-duty transportation engines, Medium-duty transportation engines and Light-duty transportation engines.
What companies are included in this industry?
Companies covered in the Heavy-Duty Diesel Engine Manufacturing industry in the United States include Caterpillar Inc., Cummins Inc. and Navistar International Corp.
Performance
What's included in the Performance chapter?
The Performance chapter covers detailed analysis, datasets, detailed current performance, sources of volatility and an outlook with forecasts for the Heavy-Duty Diesel Engine Manufacturing industry in the United States.
Questions answered in this chapter include what's driving current industry performance, what influences industry volatility, how do successful businesses overcome volatility, what's driving the industry outlook. This analysis is supported with data and statistics on industry revenues, costs, profits, businesses and employees.
Products & Markets
What's included in the Products and Markets chapter?
The Products and Markets chapter covers detailed product and service segmentation, analysis of major markets and international trade data for the for the Heavy-Duty Diesel Engine Manufacturing industry in the United States.
Questions answered in this chapter include how are the industry's products and services performing, what are innovations in industry products and services, what products or services do successful businesses offer and what's influencing demand from the industry's markets. This includes data and statistics on industry revenues by product and service segmentation and major markets.
Geographic Breakdown
What's included in the Geographic Breakdown chapter?
The Geographic Breakdown chapter covers detailed analysis and datasets on regional performance of the Heavy-Duty Diesel Engine Manufacturing industry in the United States.
Questions answered in this chapter include where are industry businesses located and how do businesses use location to their advantage. This includes data and statistics on industry revenues by location.
Competitive Forces
What's included in the Competitive Forces chapter?
The Competitive Forces chapter covers the concentration, barriers to entry and supplier and buyer profiles in the Heavy-Duty Diesel Engine Manufacturing industry in the United States. This includes data and statistics on industry market share concentration, barriers to entry, substitute products and buyer & supplier power.
Questions answered in this chapter include what impacts the industry's market share concentration, how do successful businesses handle concentration, what challenges do potential industry entrants face, how can potential entrants overcome barriers to entry, what are substitutes for industry services, how do successful businesses compete with substitutes and what power do buyers and suppliers have over the industry and how do successful businesses manage buyer & supplier power.
Companies
What's included in the Companies chapter?
The Companies chapter covers Key Takeaways, Market Share and Companies in the Heavy-Duty Diesel Engine Manufacturing industry in the United States. This includes data and analysis on companies operating in the industry that hold a market share greater than 5%.
Questions answered in this chapter include what companies have a meaningful market share and how each company is performing.
External Environment
What's included in the External Environment chapter?
The External Environment chapter covers Key Takeaways, External Drivers, Regulation & Policy and Assistance in the Heavy-Duty Diesel Engine Manufacturing industry in the United States. This includes data and statistics on factors impacting industry revenue such as economic indicators, regulation, policy and assistance programs.
Questions answered in this chapter include what demographic and macroeconomic factors impact the industry, what regulations impact the industry, what assistance is available to this industry.
Financial Benchmarks
What's included in the Financial Benchmarks chapter?
The Financial Benchmarks chapter covers Key Takeaways, Cost Structure, Financial Ratios, Valuation Multiples and Key Ratios in the Heavy-Duty Diesel Engine Manufacturing industry in the United States. This includes financial data and statistics on industry performance including key cost inputs, profitability, key financial ratios and enterprise value multiples.
Questions answered in this chapter include what trends impact industry costs and how financial ratios have changed overtime.
Industry Data
What's included in the Industry Data chapter?
The Industry Data chapter includes 10 years of historical data with 5 years of forecast data covering statistics like revenue, industry value add, establishments, enterprises, employment and wages in the Heavy-Duty Diesel Engine Manufacturing industry in the United States.
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Frequently Asked Questions
What is the market size of the Heavy-Duty Diesel Engine Manufacturing industry in the United States in 2026?
The market size of the Heavy-Duty Diesel Engine Manufacturing industry in the United States is $42.2bn in 2026.
How many businesses are there in the Heavy-Duty Diesel Engine Manufacturing industry in the United States in 2025?
There are 257 businesses in the Heavy-Duty Diesel Engine Manufacturing industry in the United States, which has declined at a CAGR of 0.5 % between 2020 and 2025.
How may import tariffs affect the Heavy-Duty Diesel Engine Manufacturing industry in the United States?
The Heavy-Duty Diesel Engine Manufacturing industry in the United States is likely to be significantly impacted by import tariffs with imports accounting for a high share of industry revenue.
How may export tariffs affect the Heavy-Duty Diesel Engine Manufacturing industry in the United States?
The Heavy-Duty Diesel Engine Manufacturing industry in the United States is likely to be significantly impacted by export tariffs with exports accounting for a high share of industry revenue.
Has the Heavy-Duty Diesel Engine Manufacturing industry in the United States grown or declined over the past 5 years?
The market size of the Heavy-Duty Diesel Engine Manufacturing industry in the United States has been growing at a CAGR of 5.7 % between 2020 and 2025.
What is the forecast growth of the Heavy-Duty Diesel Engine Manufacturing industry in the United States over the next 5 years?
Over the next five years, the Heavy-Duty Diesel Engine Manufacturing industry in the United States is expected to grow.
What are the biggest companies in the Heavy-Duty Diesel Engine Manufacturing industry in the United States?
The biggest companies operating in the Heavy-Duty Diesel Engine Manufacturing industry in the United States are Caterpillar Inc., Cummins Inc. and Navistar International Corp
What does the Heavy-Duty Diesel Engine Manufacturing industry in the United States include?
Industrial machinery engine manufacturing and Heavy-duty transportation engine manufacturing are part of the Heavy-Duty Diesel Engine Manufacturing industry in the United States.
Which companies have the highest market share in the Heavy-Duty Diesel Engine Manufacturing industry in the United States?
The company holding the most market share in the Heavy-Duty Diesel Engine Manufacturing industry in the United States is Caterpillar Inc..
How competitive is the Heavy-Duty Diesel Engine Manufacturing industry in the United States?
The level of competition is high and increasing in the Heavy-Duty Diesel Engine Manufacturing industry in the United States.
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