SG1857 234-4668 Oxygen Sensor Upstream or Downstream Compatible with 2003 2004 2005 GMC Sierra 1500 Yukon 5.3L Chevrolet Silverado 1500 Tahoe 5.3L 4 PCS Item Description About this item [Vehicle Fitment]- Compatible with 2003-2005 GMC Sierra 1500 5.3L; Compatible with 2003-2005 GMC Yukon 5.3L; Compatible with 2003-2005 Chevrolet Silverado 1500 5.3L; Compatible with 2003-2005 Chevrolet Tahoe 5.3L. [Reference Number]- SG1857, 234-4668, 15284, 21546. [Specification]- OEM Replacement,Plug and Play;Connector gender:Female;Include 4pcs same Oxygen Sensor and 4pcs zip ties?Mounting Type:Threaded [Precision Performance]- Fast response, Accurate measurement,stable transmission and high efficiency; Optimizing engine performance, smooth acceleration, solve jittering [Quality Material]- The product is made of high temperature resistant cable and stainless steel shell, double protection, good sealing, anti-corrosion and anti-detachment, and coated with anti-sintering agent, more durable ? See more product details *Enter your model information into Amazon Fitment Chart. Compare the plug of your original product with our product. *It is recommended to replace it around 80,000 km (subject to environment and driving habits) *The wires of our oxygen sensors are lengthened, and the product comes with zip tie to fix the wires according to your needs. Payment We accept payment only through PAYPAL Shipping We ship products worldwide through standard express courier service, it will reach within 7 to 10 days to abroad buyers, we ship the product after recieved clear payment and give full information about shipment to the buyer Return We accept product return 25 days from delivery date but product should be in original condition.