PRODUCT DETAILS

1.Line length: 
2.Package Include:  Oxygen Sensor*4
3.Brand New Oxygen Sensor
4.Direct Plug-In Replacement Faulty Oxygen Sensor（Direct Application）
5.Correct Connector No cutting or splicing
6.Built and tested to strict quality control standards
7.Return&Warranty: 30 Days Return And Exchange Guarantee!
                                 3 Year Warranty

Features
1-Condition: 100% Brand New and High Quality
2-Warranty: 3 Year Warranty
3-Shipping: Fast & Free Shipping,Shipping Immediately
4-Pretested, precise and high quality oxygen sensor.
5-Designed to improve fuel economy while reducing harmful emissions.
6-Helps the engine run efficiently in perfect air-gas ratio.
7-Improve engine response and performance.
8-Direct replacement for the original one. Direct Plug-In Replacement,Easy installation.

Fit Vehicles:(Please check the part number and item pics clearly, confirm suited to your needs. )
Chevrolet
Silverado 1500
4.3L V6 2003 2004 2005 2006
4.8L V8 2003 2004 2005
Tahoe 4.8L V8 2003 2004 2005

GMC
Sierra 1500
4.3L V6 2003 2004 2005 2006
4.8L V8 2003 2004 2005
Yukon 4.8L V8 2003 2004 2005

HOW TO ENSURE THAT YOU ARE BUYING THE CORRECT PART

Enter complete Year, Make, Model, Trim, and Engine Size in eBay Compatibility Chart Located just above the Item Specifics box at the top of the listing page.

**PLEASE NOTE: Some applications are still dependent on other information.

To reveal Important Part Details in the Compatibility Chart be sure to put your mouse over the IMPORTANT PART DETAILS BOX

*SOME SMART PHONES WILL NOT HAVE ACCESS TO THE COMPATIBILITY CHART*

*It is the responsibility of the purchaser to verify complete fitment*

Review Photo below for guidance.

Must know before buying:
（The following information is for instructional and guidance reference only.)
We try and make them as accurate as we can.If Check Engine Light is on or an OBDII Trouble/Fault code occurs after installation, check the sensor with a voltmeter as below. If the sensor is good, further diagnosis is required. There're many different codes for specific functional failures, which are NOT necessarily relevant to the sensor. Find out what the Code means before leaving any feedbacks.

1. ONLY a defective sensor after tested by a voltmeter is applied to manufacturer warranty.
2. If the purchase is wrong, please contact the seller first, we will return the goods or help you find the suitable products for replacement according to the actual situation!
The Price, Quality & Functionality of the O2 Sensor is fully covered under our warranty & return policy. However, refund for any labor cost, expense in a dealer shop or damage due to wrong installation is NOT covered.

How do I know the O2 sensor is good or not? 
A: The only way to know if the O2 sensor is functioning normally is to check its responsiveness to changes in the air/fuel mixture, by Voltage Measurement or Waveform Simulation.

Use a 10-mega ohm digital voltmeter. Hook up the voltmeter's red probe to the sensor's signal wire and the black probe to engine ground. (Use back probe method, DO NOT pierce the wire.) For a good sensor, voltage should fluctuate constantly between 0.1 and 0.9 volts after starting the engine for 2 or 3 minutes.

Goes above range between 0.1 and 0.9 volt
Remains below 0.5 volts
Stays fixed at a particular voltage