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Whether you're looking to maximize productivity, support demanding workloads, or fine-tune your truck for specific applications, Thoroughbred Diesel offers a premium selection of Heavy Duty Tuners engineered to deliver dependable performance and reliable operation. Our tuning solutions are designed for Caterpillar, Cummins, Detroit Diesel, International/Navistar, Mack, Mercedes-Benz, PACCAR, and Volvo engines, helping improve horsepower, torque, throttle response, fuel economy, and overall engine performance. In addition to heavy-duty tuners, Thoroughbred Diesel carries a complete selection of diesel performance and replacement parts, including injectors, turbochargers, fuel system components, sensors, gaskets, oil pumps, and overhaul kits. Call 859-737-4966 if you don't see the pump you need below and we will get it for you.