CUMMINS DEF HEAD UNIT : OEM ASP4310-6500722
ORDERS PLACED BEFORE 3PM EST WILL SHIP SAME DAY
WARRANTY
1M MILES OR 1 YEAR
PRODUCT DESCRIPTION
This is a Remanufactured, DuraWRX DEF Head Unit, DuraWRX part number ASP4310-6500722 ( OEM Part Number ASP4310-6500722 ). 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 | ASP4310-6500722 |
| Additional OEM | 502392, 614792, 716074, 10498943, 21640011, 3133-LL2-801001, 46788225, 46854881, ASP4310-6500722, CM205532, SV10595 |
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"
Built to align with Cummins emissions systems, the OEM ASP4310-6500722 DEF Head Unit is designed for accurate fluid level sensing and secure communication with onboard controls. This unit installs directly into the DEF tank assembly, matching factory specifications for a dependable fit. It supports proper system monitoring, helping ensure consistent operation within emission compliance standards. Whether you're replacing a failed sensor or conducting scheduled service, this component provides a practical, OEM-approved solution. Its design ensures continued reliability within the DEF delivery system.
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Diesel engines equipped with Selective Catalytic Reduction (SCR) systems depend on accurate DEF management to comply with emissions regulations. The OEM ASP4310-6500722 DEF head unit is a direct replacement part designed for use in various Cummins-powered vehicles and equipment.
This unit plays a central role in monitoring and controlling Diesel Exhaust Fluid within the tank. It sends data to the vehicle’s control module and ensures proper fluid delivery to the exhaust aftertreatment system.
Key functions of the OEM ASP4310-6500722 DEF head unit include:
- DEF Level Sensing
- Provides real-time fluid level data to the ECM
- Built-In Heating Element
- Prevents DEF from freezing in cold conditions
- Temperature Sensor
- Measures fluid temperature for system adjustments
- Factory-Matched Connector
- Ensures seamless integration with Cummins harnesses
- Top-Mount Design
- Installs easily on standard DEF tank ports
Be sure to verify the OEM part number ASP4310-6500722 and system compatibility before ordering.
This DEF head unit is suited for medium- and heavy-duty applications, including trucks, buses, and off-road equipment running Cummins engines with SCR systems.
A Diesel Exhaust Fluid (DEF) head unit typically lasts between 5 to 7 years under normal operating conditions. However, lifespan can vary based on factors like climate, driving habits, and maintenance.
Key Factors That Affect DEF Head Unit Lifespan:
- Contaminated DEF
- Using low-quality or impure DEF can cause crystal buildup and clog internal sensors.
- Extreme Temperatures
- Repeated freezing or overheating shortens the lifespan of electronic and sensor components.
- Lack of Maintenance
- Ignoring system alerts or delaying fluid refills can lead to early failure.
- Extended Idling
- Trucks that idle often without regular driving cycles may stress the DEF system.
Signs Your DEF Head Unit May Be Failing:
- DEF warning light stays on or blinks
- Inaccurate DEF level readings
- Engine derates unexpectedly
- Diagnostic codes related to NOx or SCR systems
Best Practices to Extend DEF Head Unit Life:
- Always use certified DEF fluid (API-certified)
- Store DEF away from direct sunlight or heat
- Regularly inspect and clean DEF tanks and lines
- Address sensor or system alerts early
If your DEF head unit fails, it’s important to replace it promptly to avoid system shutdowns or emissions compliance issues.
Yes, it is designed as a direct OEM replacement and uses existing wiring harness connections.
If the heater element fails or power is disrupted, the unit may not prevent freezing, leading to DEF flow errors or system faults.
No programming is typically required, but codes should be cleared and system parameters verified post-installation.
Keeping the DEF fluid clean, inspecting electrical connectors, and avoiding overfilling or contaminated fluid can help prevent premature failure.
Cummins DEF Head Units
