Additional core charge of 3000.00 not included. Caterpillar C7 Complete Drop-In Engine 64G3D250SB. Serial Number KAL, SAP, WAX. C7, 230-300HP, Freightliner. Ordering Instructions: Provide vehicle/equipment year, make, model Engine Model, year, Arrangement number, and Serial number.. Call us toll-free 1-800-282-9319 for ordering assistance and complete warranty information.