Genuine Turbochargers & Diesel Parts
Our specialized knowledge, leadership, and experience all began over six decades ago and still guides our group of companies today. That is why we continue to outperform all other sources for the critical diesel engine components and turbochargers you need. No other source has our network of inventory for rapid support, our local technical support to perform problem solving failure analysis, our repair ability for the very oldest to latest high-tech products, or our skills to provide superior designed products as a solution to lowering your costs.

Who We Are
In 1950, Diesel Injection Service Co., Inc. began offering superior original equipment diesel parts and services. Today, the Diesel USA Group continues this proud heritage by offering the same quality OEM brand name parts and components for most all makes diesel applications and turbochargers.
When you need critical diesel engine components, you need the best products from the best source. Using OEM parts is a wise choice, but you don't have to pay more to get them from a Vehicle OEM dealer. The name brand products that make your diesel's engine perform best can usually be obtained for less from the "Component OEM Distributor," and that's Who We Are! We provide products for most diesel applications including charge-air coolers, turbochargers, fuel injection systems, electrical components and filtration/additives.
Our Products
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Turbochargers All Makes Automotive Turbochargers, Diesel Turbochargers and Accessories Learn More
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Charged-Air All Makes Charge-Air Coolers, Leak Test Kits and Hose & Clamp Kits Learn More
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Electrical All Makes Heavy Duty Starters, Alternators & More Learn More
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Fuel Systems Automotive and Diesel Fuel Injection Pumps, Injectors & Parts Learn More
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Exhaust All Makes EGR Coolers, EGT Sensors and More Learn More
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Filtration Engine Air, Oil and Fuel Filtration Products Learn More
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Additives Fuel Treatment Products for Automotive and Diesel Engines Learn More
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Emissions All Makes Heavy Duty DPFs, DOCs, Sensors and More Learn More
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Engine Engine Cylinder Heads, Sensors and More Learn More
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