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Ships within 48 hours · Estimated delivery Aug 5 - Aug 10
Available for: 1989-2008 Cat 3406
Available for: 2010-2022 Cummins ISX and X15 Engines
horsepower
and durability
CAT manifold CARB EO# D773-2
PDI Big Boss Cummins X15 SOHC Stage 2 Cylinder Head Extend Available for: 1989-2008 Cat 3406Available for: 2010 2025 Cummins ISX and X15 Engines Key Benefits High Nickel Casting Inconel Exhaust and Intake Valves Stainless Steel Fire Ring Enhanced Airflow and Combustion Chambers Improved Cooling Passages Made in the USA Warranty: 2 Year Unlimited Mileage PDI Big Boss Cummins ISX X15 Stage 2 Cylinder heads are meticulously designed to surpass the most demanding expectations, making them the perfect choice for heavy duty applications in
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