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- Oxygen
Product Description
234-4407 O2 Sensor 2 Downstream Compatible with Chevy Express Silverado Tahoe GMC Savana Sierra Yukon Hummer H2 Cadillac Escalade 4.3L 4.8L 5.3L 6.0L

WHY CHOOSE NIFEIDA OXYGEN SENSORS:
- THE OXYGEN SENSOR ADVANTAGE:
- ✔Made of high-quality stainless steel and other materials, strong durability, to ensure service life;
- ✔ Effectively detect the o2 content in the exhaust gas, timely replacement, can improve engine performance, fuel saving;
- ✔ Can be cross referenced with other OE numbers. As long as the model is correct, it can be replaced directly, easy to install, save labor.
234-4407 O2 Oxygen Sensor Specifications:
Brand | Nifeida |
Mfr Label | OE Style |
Position | Downstream |
Mounting Type | Threaded |
Wire Quantity | 4 wire |
Sensor Type | Heated |
High Quality Material | Stainless steel housing/Aluminum oxide trap layer/Double protection layer, |
Total Length | 480mm(wire harness length 360mm) |
Year | 2002 2003 2004 2005 2006 2007 |
Car Make | Replacenebt for Cadillac/Hummer/GMC/Express Silverado 1500 2500 3500 HD Tahoe |
OE NO. | 234-4407 SG827 ES20094 |


Nifeida is a new auto parts company that specializes in replacement parts of automobiles, such as sensors, transmission & drive train, shocks, struts & suspension, etc.
Our aim is to provide all customers with cost-effective replacement parts and friendly service.
All OEM products have to undergo rigorous testing before they leave the factory, so they all meet the OE standard and can be replaced directly.
The harness is long enough, don't worry about not being able to connect.
Please compare the image connector type and plug
- NIFEIDA WARM TIPS:
- We extend the length of the harness for easier installation and may have a 1-2cm measurement error without affecting use.
- Please select your vehicle to avoid incompatibility. You can compare the original equipment with our product description, pictures, etc.,
- Fast: Send sensors to your door and you'll receive it soon.
- Package: 1pcs 234-4407 heated oxygen o2 sensor.
- Please select your vehicle to avoid incompatibility. You can compare the original equipment with our product description, pictures, etc.,
Vehicle Compatibility: for more details, please select your vehicles to check.
✔Compatible with Hummer vehicles
- Replacement for 2003 2004 2005 2006 Hummer H2 Downstream
- V8-6.0L Base, Crew Cab Pickup/Sport Utility
✔Compatible with Cadillac vehicles
- Replacement for 2003 2004 2005 2006 Cadillac Escalade/Escalade ESV/Escalade EXT
- V8-6.0L Base, Crew Cab Pickup/Sport Utility
✔Compatible with GMC vehicles
- GMC Yukon 2003-2006 V8-4.8 6.0L
- GMC Yukon XL 1500 2003-2006 V8-6.0L Denali
- GMC Yukon XL 2500 2002-2006 V8-6.0L SLE/SLT
- GMC Savana 1500/Savana 2500/Savana 3500 2003-2007 Base LS LT SLE
- GMC Sierra 1500 2003-2006 4.3 4.8 6.0L, Sierra 1500 Classic 2007 V8-6.0L
- GMC Sierra 2500 2002-2004 Sierra 2500 HD 2002-2007 Sierra 2500 HD Classic 2007 V8-6.0L
- GMC Sierra 3500 2002-06 Sierra 3500 HD 2007 Sierra 3500 Classic 2007 V8-6.0L
✔Compatible with CHEVROLET vehicles
- CHEVROLET Tahoe 2003-2005 V8-4.8L
- CHEVROLET Express 1500 /Express 2500 /Express 3500 2003-2007 Base LS LT
- CHEVROLET Silverado 1500 2003-2006 Silverado 1500 HD 02 03 05 06
- CHEVROLET Silverado 1500 Classic 2007
- CHEVROLET Silverado 2500 2002-2004 V8-6.0L/ 2500 Classic 2007
- CHEVROLET Silverado 2500 HD 2002-2007 V8-6.0L
- CHEVROLET Silverado 3500 2002-2006 V8-6.0L
- CHEVROLET Silverado 3500 HD/3500 Classic 2007 V8-6.0L

Remove and Install Guides:
1. Identify the fault sensor from the dashboard error
2. Disconnect the old oxygen sensor.
3. Remove the o2 sensor with tools. (Ratchet, socket or wrench)
4. Compare the original and the Replacement oxygen sensors.
5. Install the new oxygen sensor to the vehicle and connect wire harness and plug it in.
6.Turn on the car after clearing the code.
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