0 John Deere 4045T, Engines, Engine, This is a used Engine taken from a John Deere 6120 Tractor but may fit additional John Deere 4045T applications. Price includes refundable core charge of $1,500 4.50 liters Diesel engine Block Casting No. R504849 Serial No. 733,410 Available at Downing Tractor Parts in Downing, WI. This component has been removed from the equipment and has been cleaned and inspected. It is available for immediate shipment. Item ships via freight carrier, for a freight quote or additional information call 877-530-1010 to speak to a sales rep about this unit. Please reference number EN-9475. Applicable sales tax will be charged.