NOx Nitrogen Oxide Downstream Sensor Compatible with Chevrolet 2017-2019 Silverado 2500 3500 HD Replacement for GMC Sierra 2500 3500 HD V8 6.6L Denali Rear Replaces 12676706 12718676 12680469
[Perfect Fitment]Compatible With Chevrolet:2017-2019 Silverado 2500 HD DIESEL V8 6.6L/2017-2019 Silverado 3500 HD DIESEL V8 6.6L, Compatible With GMC:2017-2019 Sierra 2500 HD DIESEL V8 6.6L/2017-2019 Sierra 3500 HD DIESEL V8 6.6L
[Function]:The NOx sensor,as a key component of SCR system, is typically configured with two units.The upstream NOx sensor is placed in front of the DOC and is used to measure the NOx value at the engine outlet, serving as the original input for DCU to calculate the amount of urea injection. The downstream NOx sensor is located at the outlet of the entire aftertreatment system, measuring the NOx concentration in the treater enhaust gas, serving as the input for OBD regulations monitoring.
[High Quality]Our NOx Nitrogen Oxide NOx Sensor are made from high-quality, durable materials. All NOx Nitrogen Oxide NOx Sensor are tested by our QA department before packaging and meet or exceed OEM quality.
[NOTICES]:Please check picture,OE part number and FITMENT information to verify this is the correct one you need before your purchase.