1997-2004 Powerstroke Exhaust Back Pressure (EBP) SensorOEM Part Numbers: 4C3Z9J460A, DPFE3 Year Range Application ESN Range 1997 2002 F 250 F 550 501 to 2,030,402 2000 2002 F 650 F 750 1,026,248 to End 2000 2002 Excursion 896,813 to 2,030,402 1997 2003 E Series 35,651 to 2,030,402 Limited Warranty Policy Alliant Power warrants our products to be free from defects in material or workmanship in accordance with the following: The warranty period commences the day the product is delivered to the original