Fitment: Compatible with 2003-2005 Silverado 1500 5.3L/2003-2005 Tahoe 5.3L; Compatible with 2003-2005 Sierra 1500 5.3/2003-2005 Yukon 5.3L; For more applicable models, please refer to the description.
Interchange OEM Number: 15284,234-4668, 21546, SG1857，15156,15564, 234-4342, SG1855.Please check the part number before purchase. Package Included: 4 X Oxygen Sensor.
An oxygen sensor monitors the amount of oxygen (O2) in the exhaust gas. Oxygen sensor can improve engine performance;Prevent rough idle and engine misfires;Saves money fuel costs and reduces air pollutant emissions;Extend expensive catalytic converter life.
Warm Tips:Please check the description or use the YEAR/MAKE/MODEL drop down bar and interchangeable part numbers to confirm the compatibility before purchasing.Please check your oxygen sensor position plug wire length.
If you have any questions, please feel free to contact us, we will reply you within 24 hours.
