PDI Big Boss Cummins X15 SOHC Stage 1 Cylinder Head Accessories PDI has taken its quality

PDI has taken its quality and industry-leading expertise and designed the Big Boss Turbo for the Detroit DD15

PDI's VGT Turbo for the Paccar MX13 is a high quality replacement complete turbo with the actuator for those looking for a long life replacement turbo for a failed OEM product

78mm Billet compressor wheel

specifically designed for Caterpillar (CAT) engines

Available for: Cummins ISX SOHC

PDI Big Boss Cummins X15 SOHC Stage 1 Cylinder Head Accessories PDI has taken its qualityAvailable for: 2010 2025 Cummins ISX and X15 Engines Key Benefits High Nickel Casting Inconel Exhaust and Intake Valves Stainless Retaining Clips Made in the USA Warranty: 2 Year Unlimited Mileage PDI Big Boss Cummins ISX X15 Stage 1 Cylinder heads are meticulously designed to surpass the most demanding expectations, making them the perfect choice for heavy duty applications in trucking, construction, agriculture, and more. They exemplify our