Perfect Fitment: 2PCS Oxygen Sensor compatible with 2008-2009 Buick Allure V8 5.3L, for 1996-1996 Buick Century L4 2.2L, for 1996-2004 Buick Century V6 3.1L, for 2005-2007 Cadillac CTS V6 3.4L, for 2008-2009 Chevrolet Equinox V6 3.6L, for 2003 Chevrolet Express 1500 V8 5.3L Upstream (Front Right), for 2000-2004 Chevrolet Impala V6 3.4L , 2004-2005 GMC Canyon L4 2.8L Downstream (Rear), for 2007-2013 GMC Sierra 1500 V6 4.3L... For the downstream or upstream position
OEM Replacement: Replaces OE numbers: 234-4337, 25024703, 24577303, 12578459, 12587214, 19178921, 19178924. Built to meet OE standards for performance and durability
Enhanced Engine Efficiency: O2 sensor continuously monitors oxygen levels to optimize fuel-air mixture, improve fuel economy, and reduce harmful emissions. Ensures smoother engine operation and lower exhaust pollution
Durable and heat-resistant: Made with a zirconium-iridium core and platinum coating, it provides excellent heat resistance, corrosion resistance, and long-term reliability in extreme environments
Easy Installation: The Oxygen Sensor's Direct-fit design with pre-coated threads allows quick and secure installation. No modifications needed. Compatible connectors ensure a secure and quick installation process