2Pcs Downstream Oxygen Sensor 234-4407 Compatible with Buick Chevy Silverado Suburban 1500, for Cadillac Escalade, for GMC Sierra Yukon XL 1500 2500 2000–2008, Replace 234-4651

Keep your vehicle running smoothly with this 234-4407 downstream oxygen sensorset, designed as a reliable replacement for select Buick, Chevrolet, Cadillac, and GMCmodels. Each sensor is built to factory-style specifications, making installation straightforward and hassle-free. With accurate signal response and durable construction, these O2 sensors help support proper fuel management and stable engine performance during everyday driving. This 2Pcs configuration offers added convenience and value—whether you’re replacing both downstream sensors at once or planning ahead for future maintenance. Ideal for drivers looking for a practical, direct-fit solution without overpaying at the dealership.

• Restores Proper Engine Operation: Helps resolve common issues caused by a faulty oxygen sensor, including rough idle, hesitation, delayed throttle response and check engine warnings, supporting smooth and stable daily driving
• Stable Signal & Durable Design: Features a responsive ceramic sensing element with an integrated heating circuit, combined with a heat-resistant metal housing and reinforced wiring to maintain consistent signal performance under daily driving and exhaust conditions
• Wide Vehicle Compatibility: Downstream oxygen sensor replacement compatible with Chevrolet 2003-2006 Silverado 1500 4.3L 6.0L, 2003-2005 Silverado 1500 4.8L, 2006 Suburban 1500 6.0L, 2003-2005 Tahoe 4.8L. Fit for Cadillac 2003-2006 Escalade/EXT V8 6.0L
• Wide Vehicle Compatibility: Downstream oxygen sensor replacement compatible with GMC 2003-2006 Sierra 1500 4.3L, 2003-2005 Sierra 1500 4.8L, 2003-2004 Sierra 1500 6.0L, 2003-2006 Yukon 6.0L, 2003-2005 Yukon 4.8L, 2003 Yukon Xl 1500 2500 Exc Calif 6.0L. Fit for 2003-2006 Hummer H2 6.0L
• OE-Grade Quality & Durability: Designed to meet OE specifications, this O2 sensor replaces part numbers 234-4407, 234-4651,12559849, providing a precise fit and reliable signal output
• Direct Fit Installation: Designed as a direct replacement with factory-style plug and wiring for a clean connection. No wire cutting or modification required. Installation experience or professional assistance is recommended
• Confidence from a Trusted Auto Brand: Athousliz focuses on dependable automotive sensors designed for long-term use. If you have any questions before or after purchase, our support team is ready to help—your satisfaction matters