YOUR ONE-STOP SHOP FOR heavy truck engines

THE 1ST AUTO USA LLC specializes in quality used truck engines and engine parts. We stock all types of truck engines including Cummins Engines, Detroit Engines, Isuzu Engines, Mitsubishi Engines, International Engines, Mercedes Engines, Ford Engines, Volvo Engines, Mack Engines, CAT Engines, Equipment Engines, Industrial Engines, Marine Engines, and More. We offers a wide variety of medium to heavy-duty trucks and parts for personal or commercial use. 

 Toll Free Number +1 888-861-0007 

THE 1ST AUTO USA LLC carries one of the nation’s largest inventories of the best semi-truck engines and heavy duty diesel truck engines from manufacturers. We carry engines not only for truck applications but also for a variety of industries such as hauling, mining and agriculture. Whether you are looking for rebuildable truck parts for sale, drive train components, interior parts, or exterior parts, we’re here to help. Our salvage truck parts are offered at competitive prices, so you’ll get the best bang for your buck in looking for your hard-to-find parts. Our medium and heavy-duty salvage truck yard is the area’s largest truck salvage available for both domestic and export customers. Our grounds are highly organized, so we’re able to easily find the truck parts you’re interested in.

THE 1ST AUTO USA LLC. sells quality used heavy truck parts, used diesel engines, transmissions and more. We provide quality used heavy truck parts at a reasonable price. Every part we sell comes with a standard warranty and is tested prior to sale. We ship nationwide with same day shipping available. If you do not see the part you are in need of, give us a call as our inventory changes daily and we can locate any part you need. 

CAT / CATERPILLAR Engines - "Industrial Diesel Engines" | Cat | Caterpillar

CAT Diesel Engines are designed to meet the tough modern standards of fuel emission control and provides superior performance and efficiency.

Caterpillar engines are known for their long-term durability, Cat engines are long-lasting and capable of a lot of power for industrial, vocational, and on-highway applications. 

Cummins Engines - "Engines that power life"

Cummins diesel engines are the most powerful and reliable engines on the road, on the water and at the worksite. Ranging from 2.8 to 95 liters of displacement, our diverse engine lineup allows customers around the globe to leverage the perfect Cummins engine for their specific needs. For dependability and performance, you just can't beat a Cummins engine.

Being the world’s largest independent engine manufacturer, Cummins serves customers from the farming, construction, defending, mining, marine, railway, and oil & gas sectors. These engines provide better fuel economy, reliability, and better customer support. If you want to know more about Cummins engines, we are happy to solve all your queries at (888)-861-0007)

Cummins diesel engines, natural gas engines, and alternative fuel engines deliver reliable power with the torque and efficiency you need for your on-highway and vocational vehicles. 

Detroit Engines- "Detroit Engines Mean Powerful Business"

Detroit® engines perform at their peak for miles and miles, with best-in-class fuel economy and low-cost maintenance and service. Every step of our design, testing and manufacturing process builds quality into every engine that bears the Detroit name.

Detroit provides a wide range of new vehicle engines compliant with EPA, CARB emissions, GHG, and OBD requirements. Detroit offers a complete line of heavy-duty diesel engines, axles, transmissions, safety systems and connected vehicle services for the commercial transportation industry in both the on-highway and vocational markets.

Top Models of Detroit Engines

Detroit DD5

Detroit DD8

Detroit DD13

Detroit DD15

Detroit DD16

International Engines- "International Displays Full Line of MaxxForce™ Diesel"

Performance is the essence of the MaxxForce brand. The MaxxForce DT, MaxxForce 9 and MaxxForce 10 have the power, torque and the reliability to start and run every day along with the durability to perform for years.

Mack Engines- "Next Generation Engine Boosts Fuel"

Mack diesel truck engines are renowned across the trucking industry for their power, reliability and versatility. From construction to refuse to highway hauling, there's a Mack engine that’ll keep you at the head of the pack. 

There are a number of different engines available across the different models of Mack Trucks for sale in Michigan at Interstate Truck source:

MP7

The MP®7 engine offers an exceptional power-to-weight ratio to boost your bottom line. Powerful and lightweight, the MP®7 helps maximize payloads in weight-sensitive applications like bulk hauling and keeps route times down in refuse.

MP8

The MP®8 engine is a legend on roads everywhere. With plenty of horsepower and torque across a wide operating range, the MP®8 delivers the muscle to shoulder heavy-duty vocational and highway workloads.

MP8HE

The MP®8HE combines the proven performance of our MP®8 engine with the high efficiency of Energy Recovery Technology to capture lost energy, convert it to torque and reduce fuel consumption.

SCR and Clean Diesel

As an industry leader in engine development, Mack® remains at the forefront of engine development, incorporating selective catalytic reduction (SCR) technology into our MP® engine platform. The Mack ClearTech™ SCR System—the first to be certified by the EPA—creates clean-running and fuel-efficient engines that boast near-zero emissions to meet strict EPA standards. Used successfully in hundreds of thousands of trucks around the world, SCR is the proven, reliable approach.

Cummins L9

For jobs that need a lighter weight and lower-cost engine, Mack has partnered with Cummins to offer the L9 engine with the best-in-class power-to-weight ratio.

Deutz Engines- "Flexible and compact engine systems"

Deutz engines are some of the best in the world. They have a high power-to-weight ratio, which means they can produce more power than other engines with similar weight. They are also very reliable, with fewer breakdowns and repairs needed over time. Deutz engines are renowned for their robustness and are used in demanding environments such as construction equipment, agricultural machinery and industrial plants.

Isuzu Engines-"The Power Behind It All"

Isuzu offer a large variety of models with power outputs ranging from 11.8 to over 500 hp. Our engines have a legendary reputation for reliability, and innovative technologies that make diesel engines quieter, more efficient and cleaner burning.