quality products. Easy install and use. Great quality and great Fitment. Correct Connector No cutting or splicing. Give a and more sophisiticated look for your car Replace Part Number: 9617178, 234-4012, 234-4018, SG454, SG236, 13474 name:Oxygen Sensor. Placement on Vehicle: Upstream, downstream,Front, Fitment: For Escalade 2000-2002 For Astro 1996-1997 For 1500 2002-2002 For C1500 1996-1999 For C1500 // 1996-1998 For C1500 1996-1999 For C2500 1996-2000 For C2500 // 1996-1998 For C2500 1996-1999 For Express 1500 1996-2002 For Express 2500 1996-2002 For Express 3500 1996-2002 For K1500 1996-1999 For K1500 // 1996-1998 For K1500 1996-1999 For K2500 1996-1998 For K2500 // 1996-1998 For K2500 1996 For 1500 1999-2002 For 2500 1999-2000 For 1500 2000-2002 For 1996-2000 For C1500 1996-1999 For C2500 1996-1998 For K1500 1996-1999 For K2500 1996-1998 For 1996-1997 For 1500 1996-2002 For 2500 1996-2002 For 3500 1996-2002 For 1500 1999-2002 For 2500 1999-2000 For 1996-2002 Material: Plastic + metal Color: As Shown Package Contents: 2 * Oxygen Sensor(Upstream + downstream ) Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.