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Cummins DEF Head Unit : OEM ASP5410-6606722

CUMMINS DEF HEAD UNIT : OEM ASP5410-6606722

Shipping ICON

ORDERS PLACED BEFORE 3PM EST WILL SHIP SAME DAY

WARRANTY ICON

WARRANTY
1M MILES OR 1 YEAR

$1,450.00

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AVAILABILITY IN STOCK
OEM NUMBER ASP5410-6606722
PART TYPE DEF Head Unit
BRAND DuraWRX
ENGINE MAKE Cummins
ENGINE TYPE
YEAR
PART NUMBER ASP5410-6606722
APPLICATION NOTES Electrical Connector: Deutsch DT4 Sensor Type: Analog DEF Header Height (IN): 22
ADDITIONAL NOTES DEF Header, 40 MICRON, 22"

PRODUCT DESCRIPTION

This is a New, DuraWRX DEF Head Unit, DuraWRX part number ASP5410-6606722 ( OEM Part Number ASP5410-6606722 ). 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, 22"

OEM NUMBERS

Primary OEM ASP5410-6606722
Additional OEM 5023032, ASP5410-6606722

ADDITIONAL DETAILS

CONDITION New
UPC / Barcode
WEIGHT 4.00 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"


The Cummins DEF Head Unit: OEM ASP5410-6606722 provides accurate DEF fluid level and quality data, allowing your emissions system to operate efficiently and stay compliant with regulations. Built to meet OEM specifications, this head unit offers reliable performance, helping to prevent derates and unplanned downtime. Its rugged design and seamless fit make it a dependable choice for maintaining smooth diesel engine operation. Trust Tamerx for durable parts that keep you running strong.

PEOPLE ALSO ASKS | BLOG(S)

The DEF (Diesel Exhaust Fluid) head unit is a key part of your Cummins emissions control system, responsible for monitoring DEF levels and temperatures. When this unit begins to fail, it can cause inaccurate readings that lead to system faults, derates, and even shutdowns. The Cummins DEF Head Unit OEM ASP5410-6606722 is designed to deliver accurate data and keep your aftertreatment system running properly.

Benefits of the OEM ASP5410-6606722 DEF Head Unit:

  • Direct-fit replacement for Cummins DEF systems

  • Provides accurate fluid level and temperature monitoring

  • Supports proper operation of the SCR (Selective Catalytic Reduction) system

  • Built to OEM quality standards for long service life

  • Helps prevent downtime caused by false system faults

Don’t let a failing DEF head unit interrupt your operations. The Cummins DEF Head Unit OEM ASP5410-6606722 offers a dependable solution for restoring your emissions system’s accuracy and avoiding costly derates. Shop TamerX Diesel Parts for reliable OEM components that keep your diesel engines compliant and running strong.

 
 

The DEF (Diesel Exhaust Fluid) head unit is responsible for monitoring the DEF level, temperature, and quality, playing a key role in controlling emissions in diesel engines. Since it operates in varying temperature conditions, both extreme heat and cold can impact its performance. Understanding how temperature affects the DEF head unit helps prevent issues and ensures reliable operation.

Ways Temperature Impacts DEF Head Unit Performance:

  • Freezing Temperatures – DEF freezes at 12°F (-11°C), which can lead to ice or crystal buildup inside the DEF head, affecting sensor readings.

  • Delayed Sensor Response – In extreme cold, sensors may take longer to provide accurate data, potentially triggering false warnings.

  • Crystallization with Temperature Fluctuations – Repeated freezing and thawing cycles can lead to crystal deposits that clog sensors or block fluid passages.

  • Overheating – High under-hood or ambient temperatures can stress electronic components, leading to premature sensor or circuit failure.

  • Moisture Intrusion – Temperature swings can cause condensation inside the DEF tank, risking internal corrosion or contamination of the DEF head unit.

  • Erratic DEF Quality Readings – Temperature extremes may interfere with accurate DEF quality measurements, causing system errors.

  • Triggered Fault Codes – Temperature-related sensor malfunctions may cause check engine lights or DEF system faults to activate.

Temperature plays a major role in the performance and longevity of the DEF head unit. Protecting the DEF system from extreme conditions, using high-quality DEF, and performing regular inspections can help avoid temperature-related failures. Proactive care ensures your emissions system continues to operate smoothly, no matter the climate.

 

Frequent DEF system warnings, inaccurate fluid readings, and diagnostic trouble codes often signal failure.

Complete failure may disable proper DEF dosing and trigger limp mode or restricted vehicle operation.

With clean DEF and proper system maintenance, it generally operates reliably for multiple years.

Regular inspections for residue buildup, contamination, and connector integrity help maintain performance.

 

Cummins DEF Head Units