Description:

[Vehicle Fitment]: Compatible with Buick Century 2001-2004 V63.1L, Rendezvous 2002-2004 V63.4L; Compatible with Chevrolet Impala/MonteCarlo/Venture 2001-2004 V63.4L; Compatible with Oldsmobile Silhouette 2001-2004 V63.4L; Compatible with Pontiac GrandPrix 2001-2003 V63.1L, Montana 2001-2004 V63.4L---Upstream&Downstream. [Reference Number]: 12562943, 12578459, 12587214, 250-24340, 250-24269, 25024340, 25024269. [Specification]: Wire Quantity: 4/4; Sensor Type: Heated; Mounting Type: Threaded; Connector Gender: Male/Female; Package Quantity: 2x Oxygen Sensors; Packaging Type: Box. [Quality Construction]: Manufactured from premium materials for a long lifespan; Quick and easy installation, requiring no special tools.