Here is a list of yards that have the item listed. Look at the details as some of them are Exploreres, some are Sports and some are Sport Tracs...
(They may or may not be the same, I do not know for sure).
2001
Windshield Washer Reservoir
Ford Explorer WITH PUMP 020061 $20 Hudspeth Auto USA-WI(Potosi) E-mail 1-866-479-2526
2001
Windshield Washer Reservoir
Ford Explorer [627.FD8301] (STORE:1) 00004550 $20 Misgen Auto Parts, Inc. USA-MN(Ellendale) E-mail 1-800-358-4902
2003
Windshield Washer Reservoir
Ford Explorer Sport Trac W 617 205288 $20 Shipman Auto Parts, Inc. USA-MN(Brainerd) E-mail 1-800-892-4779
2001
Windshield Washer Reservoir
Ford Explorer COMBO A 312325 $20 W & W Motors USA-TN(Madisonville) E-mail 1-800-385-0938
2001
Windshield Washer Reservoir
Ford Explorer 4.0L SOHC 11805 $20 J & R Auto Recyclers, Inc. USA-MI(Cedar-Springs) E-mail 1-800-696-1720
2001
Windshield Washer Reservoir
Ford Explorer G4033 $20 Loetscher's Used Auto Parts USA-GA(Morganton) E-mail 1-866-839-9277
2001
Windshield Washer Reservoir
Ford Explorer Sport WASHER COOLANT COMBO 02159 $20 August Pohl Auto Parts USA-MI(Benton-Harbor) E-mail 1-800-442-0761
2001
Windshield Washer Reservoir
Ford Explorer Sport WASHER BOTTLE,W PUMP,COOLANT COMBO 05231 $20 August Pohl Auto Parts USA-MI(Benton-Harbor) E-mail 1-800-442-0761
2001
Windshield Washer Reservoir
Ford Explorer Sport WASHER BOTTLE,W PUMP,COOLANT COMBO 05246 $20 August Pohl Auto Parts USA-MI(Benton-Harbor) E-mail 1-800-442-0761
2001
Windshield Washer Reservoir
Ford Explorer Sport 102-4X4,INCLUDES OVERFLOW BOTTLE A 1410 $20 AA Auto Parts, Inc. USA-CO(Denver) E-mail 1-800-784-1459
2001
Windshield Washer Reservoir
Ford Explorer Sport WASHER-COOLANT COMBO A 040089 $20 Ace Auto Recyclers, Inc. USA-IA(Iowa-City) E-mail 1-800-223-2886 (800-Ace-Auto) 1-319-338-7828
2002
Windshield Washer Motor
Ford Explorer 4DR A N4625 $15 Barger Mattson - Nampa USA-ID(Nampa) E-mail 1-800-999-9076
2002
Windshield Washer Reservoir
Ford Explorer 7978 $15 Capital Auto Parts, Inc. USA-GA(Thomasville) E-mail 1-800-868-7879
2001
Windshield Washer Reservoir
Ford Explorer Sport 205027 $12 Woosman's Auto Parts USA-PA(Hallstead) E-mail 1-800-277-9667