We send you a Remanufactured part from our stock, then you return your old part (the core) to us. PART NUMBERS Part number for this hydraulic unit is: DT4Z-2C215-A Please match the part number otherwise this unit will not work. This hydraulic unit has been repaired and tested, Common problems - fixed. "Spongy pedal goes down to the floor" issue - FIXED. CODE C1095 ABS hydraulic pump motor circuit failure - FIXED.FORD C0020 ABS Pump motor control - FIXED. This is a Hydraulic unit only! We will repair the part if it fail.