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Cummins X15, ISX15 NOx Sensor 2013-2021: OEM 4326874

Cummins X15, ISX15 NOx Sensor 2013-2021: OEM 4326874

Name: Cummins X15, ISX15 NOx Sensor 2013-2021: OEM 4326874
Brand: Tamerx Diesel Products
SKU: 4326874
Price: 349.950000 USD
Availability: InStock
Rating: 5 (4 reviews)

Click Here To View All Cummins NOx Sensors

CUMMINS X15, ISX15 NOX SENSOR 2013-2021: OEM 4326874

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ORDERS PLACED BEFORE 3PM EST WILL SHIP SAME DAY

WARRANTY
1M MILES OR 1 YEAR

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PRODUCT DESCRIPTION

This is a Genuine New, Cummins NOx Sensor, Cummins part number 4326874 ( OEM Part Number 4326874 ).This part is primarily made for a Cummins X15, ISX15, production years 2013-2021, and comes with a One Million Miles or One Year Warranty. For additional warranty info Click Here

OEM NUMBERS

Primary OEM	4326874
Additional OEM	4326874

ADDITIONAL DETAILS

CONDITION	Genuine New
UPC / Barcode	00840490548053
WEIGHT	1.00 LBS

SHIPPING OPTIONS

Ship Weight : 1.00 LBS

UPS Ground, 2nd Day Air, Next Day Air

SHIPPING POLICY

Tamerx Diesel Products ships via UPS Ground. Next day air shipping can be arranged for a reasonable price of anywhere from $50.00 - $100.00 depending on the weight of the product and your location. We will do everything we can to make sure that you get the service you need. We understand how important it is to receive your order as quickly as possible.
In most cases Tamerx Diesel Products only needs one address, as long as your product is shipping to the same location as your billing information. In order to eliminate credit card fraud, your billing information must match the credit card you provide.

The terms, conditions, and details of our warranty vary from product to product. Specific warranty details can be found below.

Tamerx Diesel Products provides a replacement warranty on all of our parts. The duration and mileage limitations of the warranty vary by product and are specified on the product's detail page/item listing.

Please note that the warranty covers replacement of the part and the cost of shipping the replacement part to you only. It does not cover any shop, labor, towing, or any similar or related costs. This is not a "money back guarantee".

If you experience a problem with your part or it is not functioning properly, the correct warranty procedure is to call us at (510) 257-1777 (8:00 AM - 5:00 PM ET Monday through Friday). Be sure to have your order number and/or other relevant order information ready so we can easily locate your order and resolve your issue as quickly as possible. From that point, we will review with you any troubleshooting steps that may need to be taken and other areas or systems that can be checked to rule out external problems contributing to your part's issue. If a replacement is determined to be necessary, we will then arrange for your replacement part to ship out ASAP and issue any necessary return shipping labels and/or documents.

As is the case for the majority of the diesel products sold on Tamerx Diesel Products, your part's warranty is active as soon as you install it. In some other cases, warranty activation is contingent upon you sending us your core (i.e., your old part). Tamerx Diesel Products will provide you a return shipping label for parts that have a warranty with a core return condition. When we have received your core return, the part's warranty coverage begins. We reserve the right to void the product warranty if your core is not received within the allotted time, or if it isn't received at all. If the warranty for the diesel part you are purchasing has a core return requirement, it will be clearly noted on the product detail page/item listing.

What is a Core Charge?

A core charge (also called "core deposit") is similar to the deposit you might pay for a can or bottle of soda and is a standard requirement in the auto parts industry. For example, in many states, to promote recycling, you pay a deposit when you purchase a can of soda and receive your deposit back when you return the empty can. Many automotive parts have a core charge, or core price, that works in essentially the same way as a soda can deposit.

30 Day Core Charge Hold

You authorize Tamerx Diesel Products, to hold your credit card for the specified core charge amount and that you agree to return your core with 30 days of receiving the purchased part. When we have received your core return, the hold is released and the core charge payment is canceled.

"This Product Doesn't Have a Core"

Unlock cleaner performance with the Cummins X15, ISX15 NOx Sensor (2013–2021) — OEM 4326874. This precision sensor helps your engine’s emissions system monitor and reduce harmful nitrogen oxides, keeping your rig compliant and efficient. Built to OEM standards for a direct fit and reliable operation, it’s ideal for Cummins X15 and ISX15 models from 2013 to 2021. Choose this Tamerx part to support smoother running and smarter emissions control on every drive.

FITMENT CHART

YEAR	MAKE	ENGINE(S)
2013	Cummins	X15	ISX15
2014	Cummins	X15	ISX15
2015	Cummins	X15	ISX15
2016	Cummins	X15	ISX15
2017	Cummins	X15	ISX15
2018	Cummins	X15	ISX15
2019	Cummins	X15	ISX15
2020	Cummins	X15	ISX15
2021	Cummins	X15	ISX15

PEOPLE ALSO ASKS | BLOG(S)

in the exhaust and helping the engine control unit (ECU) adjust diesel exhaust fluid (DEF) dosing for optimal emissions performance. For Cummins X15 and ISX15 engines from 2013 to 2021, accurate NOx readings are essential to maintain compliance with emission standards and support efficient SCR system operation. The Cummins X15, ISX15 NOx Sensor OEM 4326874 from Tamerx Diesel Parts is crafted to meet original equipment specifications, making it a reliable choice for replacing faulty or worn sensors.

• Monitors NOx levels accurately to provide real-time data that helps the engine control unit (ECU adjust DEF dosing, supporting cleaner exhaust output and compliant emissions performance

• Exact fit for Cummins X15 & ISX15 engines (2013–2021) ensuring correct installation, seamless integration, and dependable operation with factory emissions systems

• Supports efficient SCR function by delivering precise NOx measurements that help maintain proper diesel exhaust fluid (DEF balance and reduce the risk of emissions system faults

• Built to OEM standards (4326874) offering dependable durability, consistent performance, and compatibility with original NOx sensor hardware

• Ideal for highway and heavy-duty use where sustained emissions monitoring and accurate SCR system feedback are essential for regulatory compliance

Replacing a failing NOx sensor with the Cummins X15, ISX15 NOx Sensor OEM 4326874 from Tamerx Diesel Parts helps restore proper emissions system monitoring and supports long-term exhaust system performance. Investing in an OEM-matched NOx sensor ensures your engine maintains proper NOx measurement, helping protect your emissions system and keep your vehicle operating as designed.

A NOx sensor plays a critical role in monitoring nitrogen oxide levels in the exhaust and helping the emissions system operate correctly. When the sensor becomes faulty, it can affect engine management, emissions performance, and drivability. While a vehicle may still run, continuing to drive can lead to additional issues.

Check engine or emissions warning lights: A faulty NOx sensor commonly triggers dashboard alerts.
Reduced engine power: The vehicle may enter derate or limp mode to prevent emissions violations.
Increased DEF consumption: Incorrect readings can cause the system to over- or under-dose DEF.
Poor fuel efficiency: Engine adjustments based on faulty data may increase fuel usage.
Risk of emissions non-compliance: Prolonged driving with a bad sensor can lead to emissions failures.
Potential downstream damage: Incorrect exhaust treatment can stress SCR and other aftertreatment components.

Driving with a faulty NOx sensor is not recommended, even if the vehicle seems to operate normally at first. Prompt diagnosis and replacement help restore proper emissions control, prevent further system damage, and maintain reliable vehicle operation.

Common signs include emissions warning lights, decreased engine performance, or poor fuel economy. These symptoms often signal that the sensor is sending inaccurate data to the engine control module.

Yes, a malfunctioning NOx sensor can cause the engine control system to log fault codes and illuminate the check engine or emissions warning light on the dash. Diagnostic scans help identify the sensor as the source.

An accurate NOx sensor helps the engine optimize combustion and emissions control, which can support better fuel economy. A failing sensor can lead to inefficient combustion and reduce overall fuel performance.

Lifespan varies with usage, environment, and maintenance practices, but NOx sensors are designed to function reliably over many operating hours. Regular diagnostics help catch early signs of sensor wear.

TAMERX DIESEL REVIEWS

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4326874 REVIEWS