✅ FITMENT： Liangchi Air Fuel Ratio 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

✅ Replace OE Number: sensor de oxígeno Replace part number 234-4012, 234-4018, 9617178, SG454, SG236, 13474, 2344018, 2344012, 234 4018⚠NOTE: Please check the part numbers whether it suits your vehicle before purchasing

✅ About Sensor: Durability is important, that's why the Liangchi O2 sensor is made from high-temperature-resistant materials with a built-in heater to speed up the ignition, improve fuel efficiency, reduce harmful emissions, and prevent vibration and wire corrosion for a longer lifespan!

✅ About Installation: Step 1. Locate the oxygen sensor position and remove it with a socket, step 2. Compare the new sensor to the old sensor to ensure a proper installation, step3. Please clean the threaded port to ensure a proper seal of the new sensor, step 4. Gently tighten the sensor to keep the wire free from damage and avoid sensor leakage, step 5. reinstall the connector, and try to clear it if the car has diagnostic trouble codes

✅ About Selection: Please check the oxygen sensor plug before purchasing or use the year/brand/model and interchangeable part numbers to confirm compatibility, ⚠NOTE: Professional installation is highly recommended, professional tools are required and some models need to be programmed to match professionally to eliminate error codes.