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Cummins ISB 6.7L, QSB Sensor Temperature 2014-2018: OEM 4384811

CUMMINS ISB 6.7L, QSB SENSOR TEMPERATURE 2014-2018: OEM 4384811

Shipping ICON

ORDERS PLACED BEFORE 3PM EST WILL SHIP SAME DAY

WARRANTY ICON

WARRANTY
1M MILES OR 1 YEAR

$129.95

AVAILABILITY IN STOCK
OEM NUMBER4384811
PART TYPESensor Temperature
BRANDTamerx Diesel Products
ENGINE MAKECummins
ENGINE TYPEISB 6.7L, QSB
YEAR2014-2018
PART NUMBER4384811TX

PRODUCT DESCRIPTION

This is a New, Tamerx Sensor Temperature, Tamerx part number 4384811TX ( OEM Part Number 4384811 ).This part is primarily made for a Cummins ISB 6.7L, QSB, production years 2014-2018, and comes with a One Million Miles or One Year Warranty. For additional warranty info Click Here

OEM NUMBERS

Primary OEM 4384811
Additional OEM 4384811

ADDITIONAL DETAILS

CONDITION New
UPC / Barcode 00840490535992
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"


Designed for 2014–2018 Cummins ISB 6.7L and QSB engines, this OEM 4384811 temperature sensor provides accurate monitoring to support proper engine management and protect vital components. Its direct-fit design allows for easy installation, while the durable construction ensures reliable performance and consistent readings in demanding operating conditions. A dependable solution for maintaining smooth and efficient engine operation.

FITMENT CHART

YEARMAKEENGINE(S)
2014Cummins ISB 6.7L QSB
2015Cummins ISB 6.7L QSB
2016Cummins ISB 6.7L QSB
2017Cummins ISB 6.7L QSB
2018Cummins ISB 6.7L QSB

PEOPLE ALSO ASKS | BLOG(S)

Accurate temperature monitoring is a critical element for diesel engine health — and the Cummins ISB 6.7L / QSB Temperature Sensor (OEM 4384811) is designed to deliver precisely that. For ISB 6.7L and QSB engines manufactured between 2014 and 2018, this sensor ensures the engine’s control system receives reliable temperature data, enabling proper regulation of combustion, cooling, and emissions. Using the correct OEM-spec sensor is essential for maintaining engine efficiency, safety, and long-term durability.

This temperature sensor contributes significantly to stable and optimized engine operation:

  • Precise Temperature Feedback – Monitors coolant or engine temperature continuously and sends accurate readings to the control module for correct adjustments.

  • Prevents Overheating & Component Damage – Reliable temperature data helps prevent overheating, reducing risk of thermal damage to internal components.

  • Enhances Combustion Efficiency and Emissions Control – With accurate temperature information, the engine can optimize fuel timing, combustion conditions, and emissions performance under varying loads and ambient conditions.

  • OEM-Quality Fit and Durability – As OEM 4384811, this sensor matches original manufacturer standards, ensuring correct installation, consistent performance, and long-term reliability.

  • Reduces False Alarms and Misdiagnosis – A functioning sensor helps avoid erroneous temperature warnings or fault codes, making diagnostics more dependable and preventing unnecessary maintenance.

Replacing a worn or malfunctioning temperature sensor is a smart move to safeguard your engine’s reliability and performance. The Cummins ISB 6.7L / QSB Temperature Sensor (OEM 4384811) delivers accurate and dependable monitoring — keeping temperature under control, protecting vital components, and supporting efficient engine operation. For truck owners and mechanics seeking a high-quality OEM replacement, Tamerx offers a trusted solution engineered for long-term engine health and stable performance.

The Sensor Temperature plays a vital role in monitoring engine temperature and providing key data to the engine control module (ECM). This information helps regulate fuel delivery, combustion efficiency, and exhaust treatment processes. When the Sensor Temperature fails or sends incorrect readings, it can directly impact how the emission control systems operate—often leading to higher emissions and potential compliance issues.

How a Faulty Sensor Temperature Affects Emission Controls

  • Incorrect Air-Fuel Ratio
    Faulty temperature data can cause the ECM to adjust fuel delivery improperly, leading to richer or leaner mixtures that increase emissions.

  • Delayed Catalyst Warm-Up
    The catalytic converter requires proper exhaust temperature to function efficiently. Incorrect engine temperature readings can slow its warm-up time.

  • Poor Combustion Efficiency
    If the ECM miscalculates fuel timing due to inaccurate sensor data, incomplete combustion can occur—producing more unburned hydrocarbons.

  • EGR System Malfunctions
    The Exhaust Gas Recirculation system relies on temperature data to manage flow. Incorrect readings may disrupt emission reduction performance.

  • Higher NOx and CO Emissions
    A malfunctioning Sensor Temperature can directly contribute to increased nitrogen oxides (NOx) and carbon monoxide (CO) output.

  • Check Engine Light or Emission Fault Codes
    Many emission-related warnings are triggered by faulty temperature signals, indicating reduced system efficiency.

Yes— a Sensor Temperature can significantly affect emission control systems. Accurate temperature readings are essential for maintaining proper fuel delivery, efficient combustion, and effective exhaust treatment. If you notice performance issues or emission warnings, inspecting the Sensor Temperature should be a priority. Timely repairs help keep your vehicle compliant, efficient, and environmentally responsible.

Yes — because the engine may not monitor actual temperature properly, overheating can occur internally or stress engine parts without obvious external symptoms.

It can be — replacing an aging sensor may prevent sudden failures, especially if the engine has high hours or is used under heavy duty conditions.

It should be checked during routine maintenance intervals, especially if there are signs of temperature instability, performance issues, or erratic readings.

Yes — if the engine’s control system sees abnormal or invalid temperature data, it may reduce power or limit operation to prevent damage.

Cummins Sensor Temperatures

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