Choosing the right diesel engine supplier is essential for any business looking for reliable performance and reduced downtime. Cummins engines are used in trucks, construction equipment, mining equipment, boats, farms, gensets, and more.

For B2B buyers, cost and stock are not the only element to consider. Other factors to consider include the type of engine, condition, parts, technical assistance, shipping time, custom work, and after-sales support. A company familiar with the field can also assist in selecting the right equipment for your needs.

We have compiled a list of the top 10 Cummins diesel engine companies in the USA.

Comparison of the Top 10 Cummins Diesel Engine Suppliers in the USA

Company	Specialization	Best For
4tnvengine (XiaMenJin HuaSen Propulsion System)	Cummins engines, engine parts, OEM and bulk supply	Bulk buyers, OEMs, distributors, and international sourcing
Foley Engines	Industrial engines, Cummins engines, parts, and powertrain components	Industrial equipment owners and replacement engine buyers
Blaine Brothers	Cummins engines, genuine parts, truck repair, and fleet service	Trucking companies and commercial fleets
NineX Power Systems	New, used, and reconditioned diesel engines	Industrial, marine, mining, construction, and power-generation applications
Marine Systems, Inc.	Cummins marine engines, parts, OEM components, and service	Marine operators and vessel owners
Cummins Sales and Service	Cummins engines, genuine parts, maintenance, repairs, and technical support	Buyers wanting direct Cummins support and U.S. service coverage
US Engine Production Inc.	New and remanufactured Cummins engines and genuine parts	Fleet operators, repair shops, and replacement engine buyers
H&K Equipment	Industrial equipment, parts, repairs, rebuilds, and Cummins-related solutions	Material handling and industrial equipment users
Central Diesel, Inc.	Cummins engine service, fuel injection, parts, filtration, and repairs	Agriculture, construction, marine, mining, and industrial users
Adelman’s Diesel Engine Sales	New surplus, used, and rebuilt Cummins engines	Wholesale, export, replacement, and budget-focused buyers

1. 4tnvengine (XiaMenJin HuaSen Propulsion System)

Key Products: Cummins diesel engines, Yanmar engines, Isuzu engines, Deutz engines, fuel injection systems, engine parts

Industries Served: Construction, mining, marine, agriculture, industrial equipment, OEM manufacturing

4tnvengine (XiaMenJin HuaSen Propulsion System) is a diesel engine supplier based in China. It serves B2B buyers around the world. The company sells Cummins engines, as well as Yanmar, Isuzu, and Deutz engines. Its main buyers are dealers, OEMs, fleet owners, and firms that need engines in large lots.

The company offers factory supply, OEM help, and bulk orders. Its Cummins range includes 4BT, 6BT, 6CT, ISB, QSB, QSL, NT855/N14, and KTA19/KTA38 engines. It also sells Cummins parts, such as fuel pumps, turbochargers, heads, pistons, liners, bearings, and rebuild kits.

U.S. buyers may use the company for direct imports, bulk orders, or OEM supply. Before they place an order, they should check the model fit, documentation, ship terms, warranty, and U.S. repair support.

What Makes 4tnvengine Stand Out?

4tnvengine offers trusted Cummins engines, parts, and help for buyers around the world.

• Many Cummins Models: Pick from a wide range of Cummins engines for many types of work and machines.
• Direct Factory Supply: Buy from trusted factory sources for good quality, fair prices, and steady stock.
• Bulk and OEM Orders: The company handles large orders and OEM needs for makers, dealers, and equipment firms.
• New and Rebuilt Engines: Pick new, used, or rebuilt engines to match your needs and budget.
• Cummins Parts: Find parts for many Cummins engines to help with fixes, care, and long use.
• Global Shipping Help: Get help with export forms, worldwide ship plans, and secure delivery.
• Model Match Help: Find the right engine model and CPL code to make sure it fits your equipment.
• Many Uses: Use these engines in agriculture, industrial plants, construction, power generation, and other hard-use work.

2. Foley Engines

Headquarters: Worcester, Massachusetts, USA 

Founded: 1916 

Key Products: Industrial engines, Cummins engines and parts, replacement parts, powertrain components

Industries Served: Industrial equipment, off-road machinery, construction, and related applications

Company Overview

Foley Engines is a leading Cummins diesel engine supplier in the USA based in Worcester, Massachusetts. The company was founded in 1916. It sells industrial engines, engine parts, and powertrain components. Its Cummins products give equipment owners another U.S. source for Cummins diesel engines and replacement parts.

 

Foley operates from a 20,000-square-foot facility. It keeps many engines and parts in stock. The company also offers same-day shipping on many popular replacement parts. Its team has experience with engines used in many industrial applications.

3. Blaine Brothers

Headquarters: Blaine, Minnesota, USA

Founded: 1979

Key Products: Cummins engines and parts, truck engines, off-highway engines, repair and service

Industries Served: Trucking, transportation, commercial fleets, off-highway equipment

Company Overview

Blaine Brothers is a family-owned company that helps trucking and transport businesses. It provides truck parts, repairs, towing, and fleet maintenance. It also offers engine service and repairs for heavy-duty trucks and equipment.

 

Blaine Brothers is an authorized Cummins dealer and service center. It sells genuine Cummins parts for highway and off-road equipment. Its trained technicians also repair Cummins engines using Cummins tools and approved parts.

4. NineX Power Systems

Headquarters: Houston, Texas, USA

Founded: 2023

Key Products: New, used, and reconditioned Cummins diesel engines, industrial engines, marine engines, generators

Industries Served: Power generation, oil and gas, construction, mining, marine, agriculture, industrial

Company Overview

NineX Power Systems supplies new, used, and reconditioned industrial diesel engines. Its range includes Cummins, Caterpillar, MTU, and Detroit Diesel engines. The company offers engines from about 40 HP to 4,000 HP. This range suits many commercial and industrial needs. Buyers can find engines for construction, power generation, marine use, oil and gas, mining, and other heavy-duty work.

NineX also supplies marine and natural-gas engines. The company says it inspects and tests its heavy-duty engines before sale. This can help buyers who need a used or reconditioned engine they can trust.

5. Marine Systems, Inc.

Headquarters: Schriever, Louisiana, USA

Founded: 1966

Key Products: Cummins marine engines, engine parts, OEM components, engine service

Industries Served: Marine transportation, vessels, offshore operations, power generation, industrial

Company Overview

Marine Systems, Inc. is a diesel engine dealer that focuses on marine equipment. Cummins is one of its authorized engine brands. The company sells engines and parts. It also provides service and OEM components for vessel owners and operators across the United States.

 

Marine Systems supports Cummins customers with exchange engines and repair services. Its service area includes the Gulf Coast, East Coast, and major inland waterways. This makes the company a useful choice for marine operators that need engines, parts, and repairs from one supplier.

6. Cummins Sales and Service

Headquarters: Columbus, Indiana, USA, through Cummins Inc.

Founded: 1919

Key Products: Cummins diesel engines, generators, genuine parts, maintenance, and repair services

Industries Served: Automotive, construction, agriculture, mining, marine, power generation, oil and gas, commercial and industrial

Company Overview

Cummins Sales and Service is the official sales and support network of Cummins Inc. in North America. Its U.S. locations sell Cummins engines and genuine parts. They also provide maintenance, testing, repairs, and technical support. These services cover trucks, construction equipment, mining machines, boats, farm equipment, generators, and oil and gas equipment.

Businesses that want direct support from the manufacturer may find Cummins Sales and Service a good choice. Buyers can also get genuine parts and help from service centers across the United States. This makes it easier to find engine service, repairs, maintenance, and parts near their work sites.

7. US Engine Production Inc.

Headquarters: Lindenhurst, New York, USA

Founded: 2009

Key Products: New and remanufactured Cummins engines, genuine Cummins parts, diesel engines

Industries Served: Highway, off-road, marine, industrial, fleet, military, power generation

Company Overview

US Engine Production Inc. supplies new and remanufactured engines for major diesel brands, including Cummins. Its engines are used in trucks, off-road equipment, boats, and industrial machines. The company also keeps many engines in stock for customers who need quick replacements.

The company says it remanufactures more than 5,500 engines each year at its 180,000-square-foot facility. Its heavy-duty division serves fleet owners and repair shops. It also sells genuine Cummins parts and remanufactured Cummins engines.

8. H&K Equipment

Headquarters: Coraopolis, Pennsylvania, USA 

Founded: 1983 

Key Products: Material handling equipment, industrial equipment, Cummins-related engine solutions, parts, and service 

Industries Served: Material handling, industrial, construction, logistics, rail, ports, warehouse operations

Company Overview

H&K Equipment helps industrial and commercial businesses with their equipment needs. It sells and services forklifts, container handlers, railcar movers, utility vehicles, and other machines. The company also offers parts, maintenance, repairs, and rebuilds.

H&K Equipment works with Cummins and other engine brands. Its service centers provide regular maintenance, engine repairs, rebuilds, and replacement parts. These services help keep industrial equipment working properly.

9. Central Diesel, Inc.

Headquarters: Richmond, Virginia, USA

Founded: 1972

Key Products: Cummins engine service, diesel engines, fuel injection systems, engine parts, filtration systems

Industries Served: Agriculture, construction, government, industrial, marine, mining, railroad, transportation

Company Overview

Central Diesel, Inc. is a diesel engine and fuel injection specialist in Richmond, Virginia. It serves more than 4,000 customers in many industries. These include marine, construction, mining, rental, industrial, military, transportation, and agriculture.

Central Diesel is a certified service provider for Cummins and other diesel engine brands. Its services include engine repair, fuel injection service, filtration, electrical parts, turbochargers, generators, and other engine parts.

10. Adelman’s Diesel Engine Sales

Headquarters: Chicago, Illinois, USA

Founded: 1921

Key Products: New surplus, rebuilt, and used Cummins engines, truck engines, and industrial engines

Industries Served: Trucking, construction, mining, agriculture, marine, industrial

Company Overview

Adelman’s Diesel Engine Sales is an engine supplier with many years of trade. It sells new, rebuilt, used, and extra diesel engines. Its stock has Cummins, Caterpillar, John Deere, Detroit Diesel, and other well-known brands. The firm serves retail buyers, bulk buyers, export firms, and trade users.

The firm gets engines from plant overstock, closeout sales, and extra stock. Its range has truck and work gear engines for building work, mines, farms, boats, and more. It also ships to many parts of the world.

Conclusion

The best Cummins diesel engine supplier will depend on what you require. Consider the type of work, order size, engine condition, and the after-sales support you may need.

U.S. purchasers have access to Cummins dealers, engine manufacturers, rebuild centers, marine companies, and distributors around the world who sell in bulk.

Before purchasing, verify the engine model, power, stock, condition, warranty, parts, technical support, shipping time, and full cost. These factors can help reduce downtime and expensive repairs.

Email: sales@hscoltd.net

Contact No.: 86 186 5926 1725

FAQs

Is 4tnvengine a Cummins diesel engine supplier for U.S. buyers?

Yes, 4tnvengine is a China-based supplier. It sells Cummins engines and parts to U.S. firms, dealers, and other bulk buyers.

Where can I buy Cummins diesel engines in the USA?

You can buy Cummins engines from Cummins Sales and Service, approved dealers, engine firms, and other trusted sellers across the U.S.

Can I buy used or rebuilt Cummins diesel engines?

Yes. Some firms sell used, rebuilt, remade, or extra-stock Cummins engines. The stock may vary by model and use.

What should I check before I buy a Cummins diesel engine?

Check the engine model, power, use, state, parts, cover, tech help, ship time, and full cost. Also, make sure the engine fits your truck or work gear.