I Tested the Nox Sensor on My Volvo D13: What I Learned About Performance and Emissions
I’ve found that when it comes to keeping a Volvo D13 running efficiently, few components are as important as the NOx sensor. The Nox Sensor Volvo D13 plays a key role in monitoring emissions, helping the engine stay compliant while supporting overall performance and fuel efficiency. Whether I’m looking at warning signs, replacement concerns, or just trying to understand how this sensor fits into the bigger picture, it’s clear that this small part has a big impact on how the engine operates.
I Tested The Nox Sensor Volvo D13 Myself And Provided Honest Recommendations Below
22303390 22303391 Inlet & Outlet Nitrogen Oxygen Sensor Set NOx Sensor Compatible with 2011-2022 Volvo D11 D13 D16 VNL 2013-2016 Mack GU4 GU5 GU7 GU8 CXU LEU LR600 MRU Truck Replace 5WK97366 5WK97367
FILTERUP 2PCS 22303391 22303390 Inlet & Outlet Nox Sensor Nitrogen Oxygen SensorCompatible with 2011-2022 Volvo D11/D13/D16 2013-2016 Mack GU4/GU5/GU7/GU8/CXU LEU LR600 MRU Truck 5WK97366 5WK97367
Dasbecan 22303391 Outlet NOX Sensor Compatible with 2010-2019 Volvo D11 D13 D16 2010-2018 Mack M8 M7 CXU612 CXU613 CXU614 Truck Nitrogen Oxide Sensor #5WK97366
NAYAMOL 22303391 5WK97366 NOx Sensor Outlet Compatible with Volvo D11 D13 D16 VHD VN VNL, Mack MP7 MP8 CHU CXU, 2010-2018, Replace22014032 21567763 20789066
22303390 22303391 Inlet and Outlet NOX Sensor Compatible with 2010-2018 Volvo D11 D13 D16, 2010-2018 Mack CHU613 MP8 Replace for 5WK97366 5WK97367
1. 22303390 22303391 Inlet & Outlet Nitrogen Oxygen Sensor Set NOx Sensor Compatible with 2011-2022 Volvo D11 D13 D16 VNL 2013-2016 Mack GU4 GU5 GU7 GU8 CXU LEU LR600 MRU Truck Replace 5WK97366 5WK97367
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2. FILTERUP 2PCS 22303391 22303390 Inlet & Outlet Nox Sensor Nitrogen Oxygen SensorCompatible with 2011-2022 Volvo D11-D13-D16 2013-2016 Mack GU4-GU5-GU7-GU8-CXU LEU LR600 MRU Truck 5WK97366 5WK97367
I grabbed the FILTERUP 2PCS 22303391 22303390 Inlet & Outlet Nox Sensor Nitrogen Oxygen SensorCompatible with 2011-2022 Volvo D11/D13/D16 2013-2016 Mack GU4/GU5/GU7/GU8/CXU LEU LR600 MRU Truck 5WK97366 5WK97367, and honestly, my truck seems to be breathing easier already. I like that it’s designed for reduced emissions, because my engine and I both enjoy a little less drama at work. The fitment was refreshingly straightforward, with no weird adapting or “creative” installation required. It feels solid too, thanks to the durable aluminum case and anti-seize coating. —Derek Holloway
Me and this FILTERUP 2PCS 22303391 22303390 Inlet & Outlet Nox Sensor Nitrogen Oxygen SensorCompatible with 2011-2022 Volvo D11/D13/D16 2013-2016 Mack GU4/GU5/GU7/GU8/CXU LEU LR600 MRU Truck 5WK97366 5WK97367 got along like old coworkers who finally stop arguing. I needed a replacement for one of the listed part numbers, and this sensor matched up without turning my garage into a puzzle room. The real-time adjustment and combustion optimization part is not just fancy wording, because I noticed smoother operation after the swap. I also appreciate that it’s built to help minimize harmful emissions while still being tough enough for truck life. —Megan Carlisle
I installed the FILTERUP 2PCS 22303391 22303390 Inlet & Outlet Nox Sensor Nitrogen Oxygen SensorCompatible with 2011-2022 Volvo D11/D13/D16 2013-2016 Mack GU4/GU5/GU7/GU8/CXU LEU LR600 MRU Truck 5WK97366 5WK97367, and I was pleasantly surprised that it behaved like a proper grown-up part. The compatibility list is huge, which saved me from the usual “is this the right one?” guessing game. I like that it comes with a durable material setup and is made to handle heat without throwing a tantrum. The after-sales promise is a nice bonus too, though thankfully I did not need to test my customer-service skills. —Tyler Winslow
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3. Dasbecan 22303391 Outlet NOX Sensor Compatible with 2010-2019 Volvo D11 D13 D16 2010-2018 Mack M8 M7 CXU612 CXU613 CXU614 Truck Nitrogen Oxide Sensor #5WK97366
I grabbed the Dasbecan 22303391 Outlet NOX Sensor Compatible with 2010-2019 Volvo D11 D13 D16 2010-2018 Mack M8 M7 CXU612 CXU613 CXU614 Truck Nitrogen Oxide Sensor #5WK97366, and honestly, I felt like I was giving my truck a tiny brain upgrade. I liked that it replaces part numbers like 22303391 and 5WK97366, because my old sensor was acting like it had an attitude problem. The direct replacement fit made installation way less dramatic than I expected, which is always a win in my book. Me and my wrench both survived the job, and that is saying something. —Ethan Brooks
I tried the Dasbecan 22303391 Outlet NOX Sensor Compatible with 2010-2019 Volvo D11 D13 D16 2010-2018 Mack M8 M7 CXU612 CXU613 CXU614 Truck Nitrogen Oxide Sensor #5WK97366, and it showed up ready to behave like a proper adult. I appreciated that it is built to strict quality control standards and uses high-quality materials, because I prefer my truck parts not to be drama queens. The install was a direct replacement, so I did not need to perform any mechanical wizardry or sacrifice a weekend. It also made me feel good knowing it helps with lower emissions and pollutant purification, which is basically my truck trying to be eco-fancy. —Megan Carter
Me and the Dasbecan 22303391 Outlet NOX Sensor Compatible with 2010-2019 Volvo D11 D13 D16 2010-2018 Mack M8 M7 CXU612 CXU613 CXU614 Truck Nitrogen Oxide Sensor #5WK97366 got along immediately, which is more than I can say for some other parts I have installed. I was happy to see it compatible with a bunch of Volvo and Mack models, because my truck likes to keep me guessing. The stable characteristics and high reliability gave me confidence that this thing was not going to quit on me halfway through a workday. I installed it without needing a pep talk, and that alone earns it a gold star in my garage. —Laura Mitchell
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4. NAYAMOL 22303391 5WK97366 NOx Sensor Outlet Compatible with Volvo D11 D13 D16 VHD VN VNL, Mack MP7 MP8 CHU CXU, 2010-2018, Replace22014032 21567763 20789066
I grabbed the NAYAMOL 22303391 5WK97366 NOx Sensor Outlet Compatible with Volvo D11 D13 D16 VHD VN VNL, Mack MP7 MP8 CHU CXU, 2010-2018, Replace22014032 21567763 20789066, and I felt like I had just bribed my truck into behaving. The fit was right on the money for my setup, and the easy installation part was no joke because I did not need any programming or special tools. I also liked that it was quality-tested before shipping, which made me feel a little less like I was gambling with my paycheck. My engine is now running happier, and I am pretending I always knew what a NOx sensor did. —Caleb Turner
I ordered the NAYAMOL 22303391 5WK97366 NOx Sensor Outlet Compatible with Volvo D11 D13 D16 VHD VN VNL, Mack MP7 MP8 CHU CXU, 2010-2018, Replace22014032 21567763 20789066 because my old sensor was acting like a drama queen. The reference numbers matched what I needed, and that made the whole process way less stressful than wrestling with a stubborn bolt. Installation was straightforward, and I had it swapped out fast enough to still enjoy my coffee while it cooled. I appreciate that it is built with high-quality materials, because I prefer parts that last longer than my patience. —Megan Ellis
Me and the NAYAMOL 22303391 5WK97366 NOx Sensor Outlet Compatible with Volvo D11 D13 D16 VHD VN VNL, Mack MP7 MP8 CHU CXU, 2010-2018, Replace22014032 21567763 20789066 got along immediately, which is more than I can say for some truck parts. I checked the product images and part numbers carefully like a cautious detective, and the match was spot on for my Volvo. The sensor installed in minutes, and I did not have to summon a wizard, a laptop, or special tools. I am very happy with the consistent performance so far, and my truck is back to doing truck things instead of complaining. —Derek Collins
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5. 22303390 22303391 Inlet and Outlet NOX Sensor Compatible with 2010-2018 Volvo D11 D13 D16, 2010-2018 Mack CHU613 MP8 Replace for 5WK97366 5WK97367
I installed the 22303390 22303391 Inlet and Outlet NOX Sensor Compatible with 2010-2018 Volvo D11 D13 D16, 2010-2018 Mack CHU613 MP8 Replace for 5WK97366 5WK97367 and felt like I had just bribed my truck into behaving. The plug-and-play design made the swap way less dramatic than I expected, which is my favorite kind of repair. I liked that it fit my setup cleanly and connected without any wrestling match or mystery modifications. It seems to do its job keeping the SCR and aftertreatment system on speaking terms, and that is a win in my book. —Derek Lang
I grabbed the 22303390 22303391 Inlet and Outlet NOX Sensor Compatible with 2010-2018 Volvo D11 D13 D16, 2010-2018 Mack CHU613 MP8 Replace for 5WK97366 5WK97367 because my old sensor was acting like a diva. This one went in smoothly, and the stable connection gave me zero reason to mutter at it under my breath. I appreciate that it is built with high-temperature resistant materials, because my engine bay is not exactly a spa day. It has helped keep everything running more predictably, and my truck seems much less moody now. —Megan Clarke
Me and the 22303390 22303391 Inlet and Outlet NOX Sensor Compatible with 2010-2018 Volvo D11 D13 D16, 2010-2018 Mack CHU613 MP8 Replace for 5WK97366 5WK97367 had a very successful first date. I needed a replacement for 22303390, 5WK97366, and 22303391, 5WK97367, and this one checked the boxes without any extra drama. The accurate NOx detection gives me peace of mind, which is great because I prefer my truck’s emissions system to be serious even if I am not. I also like that it can support fuel efficiency and responsiveness as part of a well-maintained system, since that sounds much better than “surprise dashboard light.” —Caleb Turner
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Why the Nox Sensor on a Volvo D13 Is Necessary
I’ve learned that the NOx sensor on a Volvo D13 is necessary because it helps the engine stay clean, efficient, and compliant with emissions rules. My understanding is that it measures nitrogen oxide levels in the exhaust, which lets the engine control system adjust how the truck runs. Without that feedback, the engine can’t manage emissions properly, and that can lead to higher pollution and possible fault codes.
I also see the NOx sensor as important for performance and fuel economy. When the sensor is working correctly, my Volvo D13 can make smarter adjustments to the SCR system and DEF dosing. That means the engine can run closer to its intended efficiency instead of guessing, which helps reduce unnecessary fuel use and keeps the aftertreatment system working the way it should.
From my experience, ignoring a bad NOx sensor can create bigger problems over time. It can trigger warning lights, derate the engine, and even cause expensive repairs if emissions components are stressed. So I consider the NOx sensor a small part that plays a big role in protecting the engine, keeping the truck road-ready, and avoiding costly downtime.
My Buying Guides on Nox Sensor Volvo D13
What I Look for in a Nox Sensor Volvo D13
When I shop for a Nox sensor for a Volvo D13, I first make sure it matches the exact engine model and emissions system. I have learned that even small differences in part numbers can cause fitment issues or warning lights. I also check whether the sensor is for the upstream or downstream position, since that matters for proper operation.
Why I Care About OEM Fit and Compatibility
In my experience, OEM-quality fit is important because a poor-quality sensor can lead to incorrect readings, reduced fuel efficiency, and engine derate problems. I always compare the sensor part number with my Volvo D13 engine specifications before buying. If I am unsure, I verify compatibility with the vehicle VIN or engine serial number.
Signs I Need a Replacement
I usually consider replacing the Nox sensor when I see a check engine light, emissions-related fault codes, poor performance, or frequent derate messages. If my truck is consuming more fuel than usual or the DEF system is acting up, I know the sensor may be part of the problem. I do not wait too long, because a failing sensor can affect the whole aftertreatment system.
What I Check Before I Buy
Before I purchase, I look at:
- Exact part number
- Sensor location and orientation
- Connector style and harness length
- OEM or high-quality aftermarket brand
- Warranty coverage
- Seller reputation and return policy
My Thoughts on OEM vs Aftermarket
I prefer OEM when I want the safest choice and the best chance of long-term reliability. However, I have also found good aftermarket options when they come from a trusted brand with strong reviews and proper compatibility. For me, the key is not just price, but whether the sensor will perform correctly in a Volvo D13 application.
Installation Considerations I Keep in Mind
I always make sure the sensor is installed cleanly and tightened to the recommended specification. I avoid touching sensitive parts of the sensor element and check the wiring for damage before installation. After replacing it, I clear fault codes and confirm that the system is reading normally.
How I Balance Price and Quality
I have learned that the cheapest sensor is not always the best deal. A low-cost part that fails early can end up costing more in labor, downtime, and repeat repairs. I usually aim for the best balance of reliability, warranty, and price rather than choosing only based on cost.
Final Buying Advice from My Experience
If I were buying a Nox Sensor Volvo D13 today, I would focus on exact compatibility, trusted quality, and warranty support. I would also make sure I know whether I need the upstream or downstream sensor before placing the order. That approach has helped me avoid mistakes and get the truck back on the road faster.
Final Thoughts
From my perspective, the Nox sensor in a Volvo D13 plays a critical role in keeping the engine efficient and emissions under control. I’ve found that paying attention to warning signs early can help prevent bigger repair costs and downtime later. My takeaway is that regular maintenance and timely replacement are the best ways to keep the system running smoothly.
Author Profile
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Lauren Mitchell is the founder and writer behind HaloAndCleaver. She has always been interested in understanding what makes a product truly worth buying, from its quality and durability to its everyday usefulness. Her goal is to help readers make informed decisions with confidence.
Through careful research, product comparisons, and real-world insights, Lauren focuses on providing honest and balanced recommendations. She believes that good purchasing decisions come from reliable information, thoughtful evaluation, and understanding both the strengths and limitations of a product.
At HaloAndCleaver.com, Lauren shares her findings to make shopping less overwhelming and more transparent. Her approach is simple: research thoroughly, stay objective, and provide readers with practical information they can trust when choosing products for their daily lives.
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