2PCS Oxygen Sensor Downstream O2 Replace# 234-4087 for B-u-i-c-k Century Lesabre Regal Ca-d-i-ll-a-c CTS SRX STS Chevy Camaro Impala Lumina G-M-C Sonoma Po-nti-ac Firebird

One Pair Downstream Oxygen O2 Sensor Part Number : 234-4087, 13444, 19178747, 19178922, 19178924, 213-1681, 213-2873, 21528, 250-24340, 350-34076, 213-1681, 2132873, 21528, 19178747, 19178922, 19178924, AA12578459, AA12587214, AA19178921, AA19178924, A-AFS123, A-AFS98, A-AFS97, AFS116, AFS123, AFS141, AFS97, ES20002, OS825, SG277 Fitment Vehicles: For B-u-i-c-k Models -- 1996-2004 Century 3.1L 1996-2003 LeSabre 3.8L 1996-2003 Park Avenue 3.8L 1996-2003 Regal 3.8L 2002-2004 Rendezvous 3.4L 1996-1999 Riviera 3.8L For Ca-d-i-l-l-ac Models -- 2005-2007 CTS 2.8L 2010-2011 CTS 3.0L 2005-2011 CTS 3.6L 2004-2005 CTS 5.7L 2005-2009 SRX 3.6L 2004-2006 SRX 4.6L 2005-2011 STS 3.6L 2005-2006 STS 4.6L For Chevy Models -- 2010-2011 Camaro 3.6L 1996-2002 Camaro 3.8L 1996-2002 Camaro 5.7L 2000-2004 Impala 3.4L 2000-2003 Impala 3.8L 1996-2001 Lumina 3.1L 1996-1997 Lumina 3.4L 1998-1999 Lumina 3.8L 1996 Lumina APV 3.4L 1996-1999 Monte Carlo 3.1L 1996-1997 2000-2004 Monte Carlo 3.4L 1998-2003 Monte Carlo 3.8L 1997-2003 S10 2.2L 1997-2004 Venture 3.4L For Oldsmobile Models -- 1996-1999 88 3.8L 1996 98 3.8L 1996-1999 Aurora 4.0L 1996-1997 Cutlass Supreme 3.1L 1998-1999 Intrigue 3.8L 1996-1999 LSS 3.8L 1997-1998 Regency 3.8L 1996-2004 Silhouette 3.4L For Po-n-t-i-ac Models -- 2001-2004 Aztek 3.4L 1996-2003 Bonneville 3.8L 1996-2002 Firebird 3.8L 1996-2002 Firebird 5.7L 1996-2003 Grand Prix 3.1L 1997-2003 Grand Prix 3.8L 1999-2004 Montana 3.4L 1996-1999 Trans Sport 3.4L Bank 1 Sensor 1=Upstream(Right/Rear); Bank 2 Sensor 1=Upstream(Left/Front); Bank 1 Sensor 2=Downstream(Right/Rear); Bank 2 Sensor 2=Downstream(Left/Front)