Marsflex O2 Oxygen Sensor Downstream Upstream 234-4018 234-4012 Compatible with Chevy Tahoe Silverado 1500 Express C1500 K1500 Suburban, GMC Yukon/XL Sierra Savana Cadillac Escalade

Cautions: Please check your vehicle fitment carefully in the product description to avoid any wrong purchase. Please check your part pictures with our pictures, especially the plug, it must be completely same. Or it will not fit your car. Application:Marsflex Oxygen Sensor 234-4018 234-4012 fit for Chevy Tahoe Suburban 1500 Silverado 1500 K1500/K2500/ C1500 Suburban Express 1500/ 2500 Avalanche 1500, GMC Yukon/ XL 1500 Sierra 1500/ 2500 Savana 1500/ 2500 C1500/ C2500/ K1500/ K2500 Suburban, Cadillac Escalade. Advantage: Made of high-quality materials, strong durability, to ensure service life, Marsflex O2 Sensor can improve engine performance and fuel economy,extend Catalytic Converter life. Easy Installation: Manufactured to OE specification, function like the original part or even better. Warranty: 1-YEAR WARRANTY. ALL Marsflex oxygen sensors are extensively tested during manufacturing to guarantee quality, reliability, and above all, always meet or exceed the original equipment specifications