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DEF Sensor : OEM ASP01RS13-FF

DEF SENSOR : OEM ASP01RS13-FF

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WARRANTY
1M MILES OR 1 YEAR

$900.00

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AVAILABILITY IN STOCK
OEM NUMBERASP01RS13-FF
PART TYPEDEF Sensor
BRANDDuraWRX
ENGINE MAKE
ENGINE TYPE
YEAR
PART NUMBERASP01RS13-FF
ADDITIONAL NOTESDEF Sensor, Level, Analog

PRODUCT DESCRIPTION

This is a New, DuraWRX DEF Sensor, DuraWRX part number ASP01RS13-FF ( OEM Part Number ASP01RS13-FF ). This part is primarily made for a , and comes with a One Million Miles or One Year Warranty. For additional warranty info Click Here

Additional Notes: DEF Sensor, Level, Analog

OEM NUMBERS

Primary OEMASP01RS13-FF
Additional OEMASP01RS13-FF, ASP5x10-xx06x13 Series

ADDITIONAL DETAILS

CONDITIONNew
UPC / Barcode
WEIGHT3.00 LBS

SHIPPING OPTIONS

Ship Weight : 3.00 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 DEF Sensor OEM ASP01RS13-FF delivers precise monitoring of diesel exhaust fluid levels and quality to support efficient emissions control. Built to OEM standards, this sensor ensures reliable data transmission to your SCR system, helping maintain optimal performance and regulatory compliance. Its rugged construction handles tough operating conditions with ease, making it a dependable choice for restoring system accuracy. Count on this sensor to help reduce faults and keep your vehicle running smoothly.

PEOPLE ALSO ASKS | BLOG(S)

A properly working DEF (Diesel Exhaust Fluid) sensor is essential for ensuring your diesel vehicle stays emissions-compliant. Over time, DEF sensors can wear out or fail, leading to warning lights, reduced power, or even shutdown scenarios. The DEF Sensor OEM ASP01RS13-FF is a direct replacement designed to restore accurate fluid monitoring and support reliable system performance.

How to Tell If Your DEF Sensor Is Failing:

  • Dashboard Warning Lights
    Frequent “Service DEF System” or “Check Engine” alerts may indicate sensor failure.

  • Incorrect DEF Levels Displayed
    If your gauge reads empty despite a full tank, the sensor could be malfunctioning.

  • Unusual Dosing Behavior
    DEF overuse or underuse may result from incorrect data from a bad sensor.

  • Limp Mode Activation
    The engine may limit power output to protect emission components when sensor faults are detected.

  • Failed Emissions Tests
    A faulty DEF sensor can cause compliance issues and lead to test failures.

If you’re noticing any of these symptoms, replacing your DEF sensor with a trusted part like the OEM ASP01RS13-FF is a smart step. Tamerx Diesel Parts carries this high-quality sensor to help you restore accuracy and avoid costly downtime. Count on us for reliable emissions system components that keep your diesel vehicle road-ready.

The DEF (Diesel Exhaust Fluid) sensor is essential for monitoring DEF level, quality, and temperature to keep your emissions system working correctly. When this sensor malfunctions, it can lead to engine derates, warning lights, and false readings. Testing your DEF sensor is a smart step when you suspect an issue—and it can help avoid costly downtime or unnecessary part replacements.

Steps to Test a DEF Sensor:

  • Use a Diagnostic Scan Tool – Connect an OBD-II or OEM-specific scan tool to check for trouble codes related to DEF sensor readings (e.g., fluid level, temperature, or quality).

  • Check Live Sensor Data – With the scan tool, view real-time DEF sensor data and verify it aligns with known fluid conditions and temperatures.

  • Inspect for Physical Damage – Look for cracks, corrosion, or contamination around the DEF tank and sensor housing that may interfere with proper function.

  • Perform a Quality Test – Some diagnostic tools allow a manual DEF quality test to detect contaminated or incorrect fluid composition.

  • Verify DEF Fluid Level Manually – Compare the actual fluid level with what the sensor reports to identify discrepancies.

  • Monitor Temperature Readings – If the DEF tank is cold or warm, the sensor should reflect the actual temperature—incorrect readings may signal a fault.

  • Look for Intermittent Faults – Loose connectors or wiring can cause intermittent sensor failures; inspect harness connections for secure, clean contact.

Testing your DEF sensor doesn't require advanced tools—just a reliable scan tool and a bit of inspection know-how. Identifying a faulty sensor early can prevent emissions-related issues and keep your vehicle compliant and running smoothly. Regular checks, especially before long hauls or during cold weather, are a smart part of diesel system maintenance.

Direct cleaning is rarely needed if quality DEF is used, but external inspection can ensure it remains unobstructed.

It typically features corrosion-resistant materials suited for DEF exposure and temperature changes.

With proper DEF and maintenance, the sensor may last several years before signs of wear emerge.

Yes, the ECM may initiate derate if the sensor detects incorrect or no DEF data.

 

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