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Replace Your Cummins Inlet NOx Sensor 3687930!<\/strong><\/p>\n NOX-CXX-007 is a precise-fit replacement for Cummins NOx sensors with part numbers 4326870<\/u><\/a> and 3687930! The Roadwarrior aftermarket catalogue includes exact-fit replacements for eight Cummins NOx sensor models. Our NOx sensors are thoroughly tested before being released to make sure they’re compatible with Cummins ISX engines. Our testing also ensures that our replacement parts match the performance standards of the inlet Cummins NOx sensor they’re replacing!<\/p>\n What is a Cummins NOx Sensor?<\/strong><\/p>\n Cummins engines have 1 NOx sensor on either side of the SCR to measure NOx in the exhaust! The inlet\/ upstream sensor monitors NOx levels before the SCR, so the ECU knows how much DEF to inject. The outlet\/ downstream NOx sensor registers the NOx levels in the exhaust after it passes through the SCR. The ECU uses this comparative data to ensure the SCR is working and is receiving enough DEF. This helps the SCR catalyst reduce toxic nitrogen oxide particles in your semitruck’s exhaust gas!<\/p>\n Why Choose Roadwarrior NOx Sensors?<\/strong><\/p>\n Many drivers are hesitant about trying aftermarket Cummins NOx sensors. This can be due to stories they’ve heard from other OTR drivers or their own experiences. Aftermarket standards vary considerably between suppliers, so we understand this. That’s why we place such emphasis on gaining our customers’ trust and proving that we’re a reliable supplier! As a Canadian company with 13 warehouses across North America, we’re easy to reach if you need support. We keep our most popular parts permanently in stock at all 13 warehouses, so we’re also ready with a speedy replacement when you need one. Many of our parts even come with the option of same-day pick-up or next-day delivery. With a Roadwarrior sensor you can enjoy the lower prices and shorter wait times of an aftermarket part, with the reliability of an OEM!<\/p>\n You can order a replacement for your inlet Cummins NOx sensor 3687930 through your dealer, or our website! If you’d rather speak to a member of the team, you can also order through our sales team on 1-877-897-9759! If you’d rather learn more about what to look for in an aftermarket replacement for a Cummins NOx sensor 3687930, head to our blog<\/u><\/a>!<\/p>\n What Are the Most Common Cummins NOx Sensor Problems?<\/strong><\/p>\n Cummins NOx sensors are extremely sensitive sensors that measure microscopic fluctuations in the NOx particles in your exhaust. However, this unfortunately means that they are quite delicate, and a small amount of damage or contamination can cause malfunctions. Soot contamination from other areas of the aftertreatment system is actually one of the most common problems with 4326870 and 3687930 Cummins NOx sensors. If the sensor gets clogged with soot it’ll give inaccurate readings, which can mean too much or too little DEF getting injected into the exhaust.<\/p>\n Your 3687930 Cummins inlet NOx sensor is also highly susceptible to moisture contamination! This includes moisture during installation and from the exhaust running through the SCR. The contamination risk is one of the reasons we’d recommend having your NOx sensor professionally installed, rather than installing it yourself. If you get a faulty replacement sensor, professional installation also makes it easier to show that the fault occurred during manufacture not installation!<\/p>\n