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Cummins DEF Head Unit : OEM ASP4310-6600718

CUMMINS DEF HEAD UNIT : OEM ASP4310-6600718

Shipping ICON

ORDERS PLACED BEFORE 3PM EST WILL SHIP SAME DAY

WARRANTY ICON

WARRANTY
1M MILES OR 1 YEAR

$1,600.00

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+
AVAILABILITY IN STOCK
OEM NUMBER ASP4310-6600718
PART TYPE DEF Head Unit
BRAND DuraWRX
ENGINE MAKE Cummins
ENGINE TYPE
YEAR
PART NUMBER ASP4310-6600718
APPLICATION NOTES Electrical Connector: Deutsch DT4 Sensor Type: Digital (canbus) DEF Header Height (IN): 18
ADDITIONAL NOTES DEF Header, 40 MICRON, 18"

PRODUCT DESCRIPTION

This is a New, DuraWRX DEF Head Unit, DuraWRX part number ASP4310-6600718 ( OEM Part Number ASP4310-6600718 ). 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 OEM ASP4310-6600718
Additional OEM 185152, 502373, 924532.0004, 1554670, 1604688, 3136685, 3350441, 10049766, 10060598, 10071997, 46697828, 46858813, 50220849, 50312250, 066900101, 60C3325, 82-67123-000, 82-88414-000, 83-01116-000, 83-09271-000, 853030184, 853030189, 4812011675, 4812073636, ASP4310-6600718, DEP106308, SP199819, TR1700-634-01

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"


Designed for use in Cummins emissions systems, the OEM ASP4310-6600718 DEF Head Unit helps maintain accurate DEF level and temperature monitoring within the tank. This component fits directly into the original system setup, requiring no modifications during installation. It ensures proper communication with vehicle controls to support consistent emissions system operation. Whether replacing a faulty sensor or completing routine service, this unit offers a reliable, application-specific solution. Built to OEM standards, it supports system stability and long-term use.

PEOPLE ALSO ASKS | BLOG(S)

The OEM ASP4310-6600718 DEF head unit is an essential component in Cummins Selective Catalytic Reduction (SCR) systems. Designed to manage Diesel Exhaust Fluid flow and monitor critical conditions inside the DEF tank, this unit helps maintain proper emissions system function in a wide range of Cummins-powered equipment.

Whether you're maintaining a truck fleet or servicing off-road machinery, a reliable DEF head unit helps prevent system faults and unplanned downtime.

Key features of the OEM ASP4310-6600718 include:

  • Fluid Level Sensor
    • Sends accurate DEF level data to the vehicle’s ECM
  • Heated Elements
    • Keep DEF from crystallizing or freezing in cold temperatures
  • Temperature Monitoring
    • Supports consistent system behavior in varying climates
  • Plug-and-Play Connection
    • Designed for easy integration with Cummins wiring
  • OEM-Tier Design
    • Matches Cummins specifications for proper fit and signal accuracy

Always confirm the OEM part number (ASP4310-6600718) before ordering to ensure compatibility with your specific DEF tank and system configuration.

This unit is ideal for medium- and heavy-duty Cummins applications that require dependable DEF monitoring and delivery in challenging work environments.

The Diesel Exhaust Fluid (DEF) head unit is a critical component in diesel vehicles that use Selective Catalytic Reduction (SCR) systems. Its main role is to monitor and manage the DEF inside the tank, ensuring proper emissions control.

Key Functions of the DEF Head Unit:

  • Level Monitoring
    • It measures how much DEF is in the tank and communicates that data to the vehicle’s onboard computer.
  • Temperature Sensing
    • It monitors DEF fluid temperature to ensure it doesn’t freeze or overheat, both of which can affect system operation.
  • Heater Control
    • In cold climates, the unit activates an internal heater to thaw the DEF, allowing it to flow properly.
  • Quality Detection
    • Some units can check the concentration of urea in the fluid to ensure it meets required standards.
  • Communication with ECM
    • The head unit sends real-time data to the Engine Control Module (ECM), helping to regulate DEF injection into the exhaust system.

Without a working DEF head unit, the SCR system cannot function correctly, which can trigger warning lights, inaccurate readings, or vehicle derating. It's an essential part of maintaining emissions compliance in modern diesel engines.

Yes, malfunctioning sensors or heating elements can trigger warning lights, fault codes, and potential engine derate conditions.

Common signs include DEF level inaccuracies, DEF temp faults, slow dosing response, or freeze protection failure.

It should be inspected during regular service intervals, particularly in high-mileage or extreme-temperature applications.

Light external cleaning may be possible, but internal contamination usually requires replacement of the unit.

Cummins DEF Head Units