Downstream NOx Fit for 5WK9 6675A Cummins 4B ISB QSB ISF DAF Truck LF45 LF55 CF65 Euro 4/5, LF Euro 6 Alexander Dennis Enviro Range 2894940
This downstream is designed to monitor NOx emissions in diesel engines, ensuring and compliance with emission standards. Compatible with 5WK9 6675A specifications, this fits Cummins 4B, ISB, QSB, and ISF engine models. It' engineered for use in DAF trucks including LF45, LF55, and CF65 models meeting Euro 4 and Euro 5 standards, well LF Euro 6 variants. This also Compatible with Alexander Dennis Enviro Range vehicles equipped with part number 2894940. The NOx plays a critical role in your vehicle' selective catalytic reduction system by measuring nitrogen oxide levels in exhaust gases, allowing the engine control unit to adjust diesel exhaust fluid injection for emissions control. Designed a direct part, this helps maintain engine efficiency and meets stringent emission requirements for commercial vehicles.
Packing and shipping
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Packaging Regulation : |
Wooden Box / Carton |
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Delivery time : |
7~14 days(About) |
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Conditions : |
New and Genuine |

How do you order?
Okcarpart makes ordering GET Parts easy. Simply send a mail to us. Instead of searching online and guessing which parts you need, our team will make sure you get the correct parts. We process and deliver your order fast, and always at a competitive price. Enjoy 5-star service!
1.IDENTIFY
Determine the parts you need. To ensure the correct parts are quoted, it's best to have the machine make and model, along with part numbers and photos of the nameplate if possible. Our team of professionals are here to help ensure you get the correct parts that fit and work the first time. Our sales team can also survey and help identify the parts you may need. Please email us to get started!
2.ORDER
Our professional internal sales teams and strong supply chain system will assist you to identify the right parts, and can recommend the most cost-effective solution for you. Our team of professionals will process your order, and ensure your order is correct the first time. With over 15 years in the business, we remove the guesswork and always deliver.
3.DELIVER
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FAQs
Q1: What is the difference between OEM and Aftermarket parts, and how do I select the right quality level for my needs?
A: OEM (Original Equipment Manufacturer) parts guarantee exact fit and factory quality, typically at a higher cost. Our Aftermarket parts are sourced from certified manufacturers, often offering comparable performance and superior value. We clearly label all products to allow the customer to make an informed choice based on budget and required lifespan.
Q2: Since you are a global supplier, how do I calculate total shipping costs and estimated delivery time to my country/region?
A: Shipping costs are calculated based on part dimensions, weight, and the destination country during checkout. We offer multiple options (e.g., Economy, Express) with transparent, real-time tracking. Delivery times are clearly displayed and factor in customs processing for international orders.
Q3: What is the warranty period on your auto parts, and what does the warranty actually cover?
A: Most new parts carry a minimum 12-month limited warranty covering defects in material and workmanship, excluding wear and tear and improper installation. The specific warranty details (period and coverage) are clearly listed on each product page.
Q4: How secure is my personal and payment information when placing an order on "okcarpart" ?
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Q5: We conduct annual targeted procurement of autoparts and repair kits to sustain production. I'd like to know if there are any contract discounts available?
A: Absolutely. Our primary strength lies in supply capability. Whether it's OEM manufacturing or global inventory searches—from components to complete units—we can match your needs with the nearest partner's inventory for rapid delivery. Our global alliance enables transactions at wholesale agency rates.