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O2 sensors have a very important job in your pickup truck’s engine and when they grow old and begin to operate inefficiently they can cost you money through performance loss and increased fuel consumption. O2 sensors determine how much fuel is used to achieve the right mix of air and fuel to create the most effective explosion within your engine to give it power. Over time the sensors stop working as efficiently, which means that you’ll go through more fuel than necessary, and you’ll also end up with a slower truck that just isn’t running as it should. That’s why it’s so important to invest in high quality 99-06 Silverado O2 sensors. We offer top performance sensors that can breathe new life into your aging vehicle. You’ll notice performance increases during use and you might even save some money at the pump as well. Each of our Silverado O2 sensors is carefully optimized for peak performance. They’re engineered to help your truck make the best possible use of its fuel and that means that when installed you’re engine will stop using too much fuel or too little during operation. Either way, you’ll notice smoother operation, improved power generation and an overall better functioning vehicle with help from our top quality Silverado O2 sensors. Some low quality sensors aren’t as finely tuned or designed to give you the highest level of performance. That’s why it’s so important to invest in a good quality product whenever you make a purchase. By taking the time to invest in good quality sensors you’ll end up with better performance, a smoother engine and hopefully some more power to work with as well. Each of these 99-06 Silverado O2 sensors is sized with precision to be sure that they fit properly. Just remove the old sensors and screw these new ones into position with a basic installation process. They’re designed to be easy to put in for just about anyone out there, and you’ll be confident that you have what it takes to get the sensor in without spending a full day on the project. If you do decide to hire a mechanic to put our Silverado O2 sensors into your vehicle, you’ll enjoy fast and affordable work from the professional because they require no modification at all to install properly. With simple screw on sensors most vehicle owners shouldn’t have too much trouble putting the parts into position, and you can swap out sensors fast and easily without worrying about complicated installation procedures. Our 99-06 Silverado O2 sensors come with or without a wiring harness so that you can replace aging wiring with a new product that’s going to function as expected during use. What that means is that you’ll enjoy a more durable product overall, and that you can toss out the old harness instead of reusing it like some owners would with a lower quality product. When you replace all the components of your O2 sensor that wear down, you ensure that you get longer-term performance and more reliable results out of your vehicle. That’s the benefit of investing in high quality Silverado O2 sensors and kits that are designed to help your vehicle hold up over time. If you decide that the current wiring harness is capable of doing its job still, you can hold onto the original harness and pair it with one of our O2 sensors that come without a harness. The option is up to you when going with our Silverado O2 sensors, which makes them more user-friendly and reliable to use. Each of these Silverado O2 sensors is sold individually, though most vehicles require more than one of them to function properly. This makes it possible to replace one at a time, or to replace both as needed. Because of the how they are packaged you can pick and choose the number of sensors that you want to purchase at once, which means that you can save money when only one sensor has malfunctioned. The O2 sensor is a very important component that’s often overlooked when upgrading and repairing an aging vehicle. Make sure that you have top quality sensors installed so that you continue to get the very best performance out of your truck’s engine. Many of our top-rated sensors come with a long-term warranty, and they are designed to last for years after installation. You can be confident that these parts will hold up over time, and they’re built from high grade components that resist wear and corrosion during use outdoors. Older vehicles don’t perform as well as they once did, but with a good set of sensors you can help correct that problem and bring your 99-06 Silverado back to life.

Fitment Includes

  • 1999, 2000, 2001, 2002. 2003, 2004, 2005, 2006 Chevy Silverados
  • LS, LT, WT, SS, Hybrid, Z71 Silverados
  • Engines: 4.3L Vortec V6, 4.8L Vortec V8, 5.3L Vortec V8, 6.0L Vortec V8 Silverados

*Please see Silverado parts pages for any exceptions.

1999-2006 Silverado 1500 O2 Sensors