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New Cylinder Head New loaded aftermarket Cummins ISB 24 Valve Cylinder head. Part number 3991773. No core charge, no core return & Free Freight! 1 year warranty. Our castings were engineered and designed in the U.S.A. They are caterpillar quality containing 5% nickel in the casting material. The coolant passages have been enlarged by 30%, and inner ribs have been reinforced to reduce heat stress. The head is well packaged in a durable wooden crate and convenient nylon lifting straps for safe and secure shipping and handling. Our ​7 Point Guarantee! 1. 100% Satisfaction Guaranteed. If your not happy with the quality upon receipt you will receive a 100% refund 2. Free Shipping Guaranteed on all ups, fed ex and LTL ground shipments. Air freight excluded 3. We Guarantee we will beat any competitor price

REBUILT BY NON-OE ISX SOHC

USED HAS PITTING

USED

REBUILT BY NON-OE CORE 4298237 ISX SOHC

USED LIGHT PITTING