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Volvo DEF Head Unit : OEM ASPVM-500

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VOLVO DEF HEAD UNIT : OEM ASPVM-500

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WARRANTY
1M MILES OR 1 YEAR

$700.00

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AVAILABILITY IN STOCK
OEM NUMBERASPVM-500
PART TYPEDEF Head Unit
BRANDDuraWRX
ENGINE MAKEVolvo
ENGINE TYPE
YEAR
PART NUMBERASPVM-500
APPLICATION NOTESElectrical Connector: Amp 1-1703818-1 Sensor Type: Digital (canbus) DEF Header Height (IN): 500mm
ADDITIONAL NOTESDEF Header, Conc, 25L Tank

PRODUCT DESCRIPTION

This is a New, DuraWRX DEF Head Unit, DuraWRX part number ASPVM-500 ( OEM Part Number ASPVM-500 ). This part is primarily made for a Volvo , and comes with a One Million Miles or One Year Warranty. For additional warranty info Click Here

Additional Notes: DEF Header, Conc, 25L Tank

OEM NUMBERS

Primary OEMASPVM-500
Additional OEM22278207, 24382877, ASPVM-500

ADDITIONAL DETAILS

CONDITIONNew
UPC / Barcode
WEIGHT0.00 LBS

SHIPPING OPTIONS

Ship Weight : 0.00 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"


Ensure smooth operation of your Volvo’s emissions system with the DEF Head Unit OEM ASPVM-500. This high-quality OEM component delivers precise DEF level monitoring and reliable communication with the SCR system. Built to endure tough environments, it supports consistent performance and regulatory compliance, helping your vehicle stay on track without unexpected interruptions. A dependable choice for restoring full DEF functionality with confidence.

PEOPLE ALSO ASKS | BLOG(S)

Diesel Exhaust Fluid (DEF) systems are crucial for reducing harmful emissions in modern diesel vehicles. A key component in this system is the DEF head unit, which manages fluid level, quality, and temperature monitoring. The Volvo DEF Head Unit, OEM ASPVM-500, is specifically designed to support these functions in Volvo applications, making it an essential part of a reliable and compliant SCR system.

Key Functions of the OEM ASPVM-500 DEF Head Unit:

  • Monitors DEF Fluid Levels
    Sends real-time data to the vehicle’s ECU to ensure correct DEF dosing and avoid low-fluid alerts.

  • Temperature and Quality Sensing
    Measures the DEF fluid's temperature and concentration to prevent damage from freezing or contamination.

  • Prevents Emissions System Faults
    A properly functioning DEF head unit helps avoid common SCR-related engine fault codes and limp mode.

  • OEM Fit for Volvo Vehicles
    Designed to meet the exact specifications for Volvo systems, ensuring quick installation and seamless compatibility.

  • Built for Longevity
    Manufactured to withstand vibrations, exposure to chemicals, and temperature changes found in diesel environments.

The Volvo DEF Head Unit OEM ASPVM-500 plays a critical role in ensuring your emissions system operates as intended. If you're replacing a malfunctioning DEF sensor or experiencing DEF-related warnings, consider this OEM-quality part from Tamerx Diesel Parts. With the right component in place, you help maintain system health and keep your truck compliant with emissions regulations.

The DEF (Diesel Exhaust Fluid) head unit plays a critical role in reducing emissions by delivering DEF to the SCR (Selective Catalytic Reduction) system. However, the performance and reliability of the DEF head unit can be heavily influenced by temperature extremes. Whether in cold winters or hot summers, understanding how temperature impacts the system helps ensure smooth operation and compliance with emissions standards.

Temperature-Related Effects on the DEF Head Unit:

  • Freezing Temperatures – DEF begins to freeze at 12°F (-11°C). If the head unit or lines freeze and the heating elements fail, DEF flow may be blocked, triggering system faults.

  • Overheating Risks – Excessive heat can degrade electrical components, sensors, and seals inside the head unit, leading to malfunctions or erratic DEF delivery.

  • Delayed Warm-Up – In cold weather, the head unit requires time to warm the DEF to a usable temperature, potentially causing temporary loss of DEF injection and warning lights.

  • Sensor Inaccuracy – Temperature fluctuations can affect the accuracy of sensors within the head unit, resulting in false level or quality readings.

  • Thermal Cycling Stress – Repeated expansion and contraction from temperature changes can weaken connections, hoses, or housings over time.

Temperature plays a major role in the reliability of the DEF head unit. Cold weather can cause freezing issues, while high heat may accelerate wear. Regular inspection of heating elements, proper storage of DEF, and responding quickly to system alerts can help maintain optimal performance regardless of the weather conditions.

Use only manufacturer-approved DEF system cleaners and avoid harsh chemicals that could damage sensors.

Freezing can prevent DEF suction or flow until the internal heater restores liquid form.

It is designed to resist corrosion from DEF fluid but should still be protected from external damage.

Its service life usually spans several years under normal operating conditions with clean DEF.

 

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