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Complete New Casting and Assembly
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specifically designed for Cummins ISX engines
PDI Big Boss CAT Stage 1 Cylinder Head 4384365RX Complete New Casting and AssemblyAvailable for: 1994 2009 CAT 3406E, C15, C16 Engines Key Benefits High Nickel Casting Inconel Exhaust and Intake Valves Improved Cooling Passages Stainless Retainer Clips Made in the USA Warranty: 2 Year Unlimited Mileage PDI Big Boss CAT 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
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