Two Wire Pigtail for Ford Power Stroke, Navistar and GM Duramax Engines. This Pigtail works with the following engine components: 7.3L - Fits AP63401 and AP63402 Injection Pressure Regulator (IPR) Valves and all HEUI A Injectors 6.0L/4.5L - Fits AP63416 and AP63417 Injection Pressure Regulator (IPR) Valves and the VGT Solenoid. 6.7L - Fits the VGT Solenoid. T444E - Fits AP63401 and AP63402 Injection Pressure Regulator (IPR) Valves and all HEUI A Injectors. VT365, VT275, MAXXFORCE 5 - Fits AP63416 and AP63417 Injection Pressure Regulator (IPR) Valves and the VGT Solenoid. DT466E, I530E, DT466 / 530, HT530 - Fits AP63401 and AP63402 Injection Pressure Regulator (IPR) Valves and all HEUI B Injectors DT466 / 570, HT570, MAXXFORCE DT / 9 / 10 - Fits the Injection Pressure Regulator (IPR) Valves. 6.6L Duramax - Fits the VGT Solenoid. This 2 Wire Pigtail fits the following Engines: Year Range -- Engine -- Engine Serial Number: 1994-1995½ -- 7.3L F-Series -- 0 to 187,099 1994-1995½ -- 7.3L E-Series -- 0 to 187,099 1995½-2003 -- 7.3L F-Series -- 187,100 to End 1995½-2003 -- 7.3L Excursion -- 187,100 to End 1995½-2003 -- 7.3L E Series -- 187,100 to End 2003-2007 -- 6.0L F Series, Excursion 2004-2010 -- 6.0L E Series 2006-2010 -- 4.5L LCF 2011-2012 -- 6.7L F-250 / F-550 1994-2003 -- Navistar T444E 2003-2007 -- Navistar VT365 2006 -- Navistar VT275 2007-2010 -- Navistar MaxxForce 5 1994-1999 -- Navistar DT466E, I530E 2000-2003 -- Navistar DT466 / 530, HT530 2004-2006 -- Navistar DT466 / 570, HT570 2007-2013 -- Navistar MaxxForce DT / 9 / 10 2004½-2012 -- Duramax 6.6L LLY, LBZ, LMM, LML, LGH