This is a Rebuilt 5.7L Hemi SET of Cylinder Heads. * Part # : 53021616DE * Description : Rebuilt 5.7L Hemi SET Side Cylinder Heads * Fitment : 300 09-15 5.7L ASPEN 09 5.7L (VIN T, 8th digit), VIN 5 (6th digit) CHALLENGER 09-15 5.7L CHARGER 09-15 5.7L COMMANDER 09-10 5.7L 1500 PICKUP 09 5.7L. 1500 PICKUP 10 5.7L, (without hybrid vehicle) 1500 PICKUP 11-15 5.7L 2500 PICKUP 10-12 5.7L (gasoline) 2500 PICKUP 13 5.7L, L., gasoline (VIN T, 8th digit) 2500 PICKUP 14-15 5.7L, gasoline (VIN T, 8th digit) 3500 PICKUP 09 Chassis Cab, 5.7L 3500 PICKUP 11-15 Chassis Cab, 5.7L 3500 PICKUP 13-15 Pickup, 5.7L, L. DURANGO 09 5.7L, VIN 1 (6th digit, Limited Hybrid) DURANGO 11-15 5.7L GRAND CHEROKEE 09-15 5.7L Remanufacturing Process Includes: - Complete disassembly and thorough cleaning via hot tank & pressure tested to confirm casting integrity - New valve seats - New valve stem seals installed - Valve job Performed with all required angles & vacuum tested seals to ensure perfect compression. - PCD milled to ensure a super smooth finish. (PCD stands for Polycrystalline Diamond, and is best for aluminum heads). - CBN milled to ensure a super smooth finish. (CBN stands for Cubic Boron Nitride and is best for cast-iron heads). - All necessary parts are cleaned and inspected before final assembly to meet AERA specifications ***JJ original Equipment 90-day (Unlimited Miles) Remanufactured Cylinder Head Warranty***