Fits these vehicles: 2004-07 For V8 5.3L Mass Air Flow Sensor, 2004-05 For V8 5.7L Mass Air Flow Sensor, 2000-05 For Mass Air Flow Sensor, 2000-02 For Eldorado Mass Air Flow Sensor, 2002-06 For Escalade Mass Air Flow Sensor 2003-06 For Escalade ESV Mass Air Flow Sensor, 2004-06 For Escalade EXT Mass Air Flow Sensor, 2000-04 For Seville Mass Air Flow Sensor, 2002-06 For 1500 Mass Air Flow Sensor, 2002-06 For 2500 V8 8.1L Mass Air Flow Sensor 2003-09 For C4500 V8 8.1L Mass Air Flow Sensor, 2003-09 For C5500 V8 8.1L Mass Air Flow Sensor, 2001-09 For C6500 V8 8.1L Mass Air Flow Sensor, 2001-09 For C7500 V8 8.1L Mass Air Flow Sensor, 2005-07 For V8 6.0L Mass Air Flow Sensor 2001-04 For V8 5.7L Mass Air Flow Sensor, 2001 For School Bus V8 8.1L Mass Air Flow Sensor, 1999-06 For 1500 Mass Air Flow Sensor, 2007 For 1500 Classic Mass Air Flow Sensor, 2005-06 For 1500 HD Mass Air Flow Sensor 2001-03 For 1500 HD Mass Air Flow Sensor, 2007 For 1500 HD Classic Mass Air Flow Sensor, 1999-00 For 2500