12671387 Upstream NOx Sensor Nitrogen Oxide Sensor Compatible with Chevy Express GMC Savana Sierra 2500 3500 4500 Silverado GMC Sierra 2500HD 3500HD 6.6L 5WK96645H 5WK96631H

Additional Details from the Manufacturer

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• Fitment: This Upstream NOx Sensor is compatible with 2010-2014 Chevy Express GMC Savana 2500 3500 4500, 2011-2014 Chevy Silverado GMC Sierra 2500HD 3500HD Note! :Please check your model and part OEM before purchase in case of mismatch
• Part Number: 2671387, 12669594, 19256343, 4N1001, 19301328, 5WK96631H, 5WK9 6631H, 904-422
• Premium Quality: Manufactured using high-grade materials to ensure durability, reliability, and a long service life even under harsh operating conditions
• Function: We have further upgraded the quality of our products. Upstream NOx Sensor, Measures NOx levels before treatment, helps in optimizing engine performance
• Easy Installation: Designed for a straightforward installation process, allowing for quick and hassle-free replacement of the old or faulty sensor.
• Service: We offer 1 year product quality support to our customers. Any questions please feel free to contact us, we will reply to you within 24 hours