[Compatible With:] CTS:2004,Escalade:2004-2006,Escalade ESV:2006,Escalade EXT:2002,Avalanche 1500:2002-2006,Camaro:2002,Corvette:2002-2003,Express 1500:2003-2007,Express 2500:2003-2007,Express 3500:2003-2007,Silverado 1500:2002-2006,Silverado 1500 Classic:2007,Silverado 1500 HD:2002,Silverado 2500:2002-2004,Silverado 2500 HD:2002-2007,Silverado 2500 HD Classic:2007,Silverado 3500:2003-2006,Silverado 3500 Classic:2007 [Compatible With:]Suburban 1500:2003-2006,Suburban 2500:2003,Tahoe:2003-2006,Envoy XL:2003,Savana 1500:2003-2007,Savana 2500:2003-2007,Savana 3500:2003-2007,Sierra 1500:2003-2006,Sierra 1500 Classic:2007,Sierra 1500 HD:2005,Sierra 2500:2003-2004,Sierra 2500 HD:2003-2006,Sierra 2500 HD Classic:2007,Sierra 3500:2003-2006,Sierra 3500 Classic:2007,Yukon:2003-2006,Yukon XL 1500:2006,Yukon XL 2500:2003-2006,H2:2005-2007,GTO:2004 [Replacement Part Number] 12601822, 12589867, 10456603, 8104566030, 12597415, 15372170, 2133521, 917-033 [Package list]1pcs 12589867 12601822 2 Knock Sensor with Harness Pair Kit Compatible with Silverado 1500 Tahoe Express Suburban Savana Sierra [Year Warranty]12-Months-Warranty，If you have any questions, please contact us via Amazon Message directly. Compatible With:
CTS:2004
Escalade:2004-2006
Escalade ESV:2006
Escalade EXT:2002
Avalanche 1500:2002-2006
Camaro:2002
Corvette:2002-2003
Express 1500:2003-2007
Express 2500:2003-2007
Express 3500:2003-2007
Silverado 1500:2002-2006
Silverado 1500 Classic:2007
Silverado 1500 HD:2002
Silverado 2500:2002-2004
Silverado 2500 HD:2002-2007
Silverado 2500 HD Classic:2007
Silverado 3500:2003-2006
Silverado 3500 Classic:2007
Suburban 1500:2003-2006
Suburban 2500:2003
Tahoe:2003-2006
Envoy XL:2003
Savana 1500:2003-2007
Savana 2500:2003-2007
Savana 3500:2003-2007
Sierra 1500:2003-2006
Sierra 1500 Classic:2007
Sierra 1500 HD:2005
Sierra 2500:2003-2004
Sierra 2500 HD:2003-2006
Sierra 2500 HD Classic:2007
Sierra 3500:2003-2006
Sierra 3500 Classic:2007
Yukon:2003-2006
Yukon XL 1500:2006
Yukon XL 2500:2003-2006
H2:2005-2007
GTO:2004

[Replacement Part Number] 12601822, 12589867, 10456603, 8104566030, 12597415, 15372170, 2133521, 917-033

[Package list] 1pcs 12589867 12601822 2 Knock Sensor with Harness Pair Kit Compatible with Silverado 1500 Tahoe Express Suburban Savana Sierra