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CUMMINS DEF HEAD UNIT : OEM ASP5410-6606718

Shipping ICON

ORDERS PLACED BEFORE 3PM EST WILL SHIP SAME DAY

WARRANTY ICON

WARRANTY
1M MILES OR 1 YEAR

$1,200.00

AVAILABILITY IN STOCK
OEM NUMBERASP5410-6606718
PART TYPEDEF Head Unit
BRANDDuraWRX
ENGINE MAKECummins
ENGINE TYPE
YEAR
PART NUMBERASP5410-6606718
APPLICATION NOTESElectrical Connector: Deutsch DT4 Sensor Type: Analog DEF Header Height (IN): 18
ADDITIONAL NOTESDEF Header, 40 MICRON, 18"

PRODUCT DESCRIPTION

This is a Remanufactured, DuraWRX DEF Head Unit, DuraWRX part number ASP5410-6606718 ( OEM Part Number ASP5410-6606718 ). This part is primarily made for a Cummins , and comes with a One Million Miles or One Year Warranty. For additional warranty info Click Here

Additional Notes: DEF Header, 40 MICRON, 18"

OEM NUMBERS

Primary OEMASP5410-6606718
Additional OEM1454713, 1454713OSH, 1604691, 4202057, 5011806, 10056545, 903V0550, ASP5410-6606718

ADDITIONAL DETAILS

CONDITIONNew
UPC / Barcode
WEIGHT4.00 LBS

SHIPPING OPTIONS

Ship Weight : 4.00 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"


Optimize your emissions system with the Cummins DEF Head Unit: OEM ASP5410-6606718, a direct-fit solution designed for accurate DEF level and quality detection. This high-performance OEM unit ensures smooth communication with your vehicle’s control module, helping maintain EPA compliance and prevent costly engine derates. Built tough for real-world demands, it offers the reliability and durability needed to keep your diesel engine running clean. Trust Tamerx for components that work as hard as you do.

PEOPLE ALSO ASKS | BLOG(S)

Modern emissions systems rely on accurate DEF level readings to maintain proper operation and avoid derate situations. When DEF level sensor problems arise, one of the most common culprits is a failing DEF head unit. The Cummins DEF Head Unit OEM ASP5410-6606718 offers a dependable solution to restore system functionality and eliminate false warnings.

Why Choose the OEM ASP5410-6606718 DEF Head Unit:

  • Built to OEM specifications for direct compatibility with Cummins emissions systems

  • Features reliable level and temperature sensors to ensure accurate DEF monitoring

  • Sealed and durable housing for long-lasting use under tough conditions

  • Simplifies repairs by offering a plug-and-play replacement

Replacing a malfunctioning DEF head unit is key to avoiding downtime and emissions-related issues. The Cummins DEF Head Unit OEM ASP5410-6606718 delivers the reliability and accuracy needed to keep your DEF system running properly. Shop TamerX Diesel Parts for high-quality OEM components trusted by diesel professionals.

The DEF (Diesel Exhaust Fluid) head unit is an essential component in modern diesel emission systems. It monitors DEF fluid level, temperature, and quality, sending critical data to the engine control module. When the DEF head unit fails, it can trigger dashboard warnings, lead to engine derates, or even prevent startup. Understanding what causes these failures can help prevent costly repairs and unplanned downtime.

Common Causes of DEF Head Unit Failures:

  • Contaminated DEF Fluid – Impurities like dirt, water, or non-compliant DEF can damage internal sensors or clog system passages.

  • Crystallization – DEF can crystallize over time, especially in cold climates, leading to sensor obstruction and signal interference.

  • Electrical Issues – Corroded connectors, frayed wires, or poor grounding can disrupt communication between the DEF head and control module.

  • Extreme Temperatures – Excessive heat can damage electronics, while freezing conditions may cause cracks or sensor lag.

  • Aging Components – Like any electronic system, sensors and internal circuits degrade over time, especially in high-mileage vehicles.

  • Software Malfunctions – Outdated or faulty software in the emission system may misread DEF head signals or trigger false alerts.

  • Physical Damage – Impact from road debris, improper installation, or mishandling during maintenance can lead to cracks or internal failure.

DEF head unit failures are often preventable with proper care, clean DEF fluid, and routine inspection. By understanding the common causes and watching for early warning signs, you can help ensure your emission system continues to function properly and avoid costly downtime or compliance issues.

 
 

It is mounted inside the DEF tank and connected to the electronic control system via a sensor harness.

Avoid harsh chemicals and abrasive tools that could damage sensitive sensor components.

Alerts may include DEF level errors, quality warnings, and sensor failure notifications.

Routine checks during regular vehicle maintenance are recommended to ensure continued accuracy.

 

Cummins DEF Head Units