
Peterbuilt/ Kenworth Paccar PX7, PX9, MX13 DPF Sensor
PETERBUILT/ KENWORTH PACCAR PX7, PX9, MX13 DPF SENSOR

ORDERS PLACED BEFORE 3PM EST WILL SHIP SAME DAY

WARRANTY
1M MILES OR 1 YEAR
PRODUCT DESCRIPTION
This is a Remanufactured, Tamerx DPF Sensor, Tamerx part number 60DS21-4 ( OEM Part Number Q21-6170-001KIT ).This part is primarily made for a Paccar PX7, PX9, MX13, production years 2015-2022, and comes with a One Million Miles or One Year Warranty. For additional warranty info Click Here
Additional Notes: DEF Sensor, Bayonet
OEM NUMBERS
| Primary OEM | Q21-6170-001KIT |
| Additional OEM | Q21-6039, Q21-6090, Q21-6127-001, Q21-6127-001K1T, Q21-6167-001, Q21-6167-001KIT, Q21-6170-001, Q21-6170-001K1T, Q21-6170-001KIT, Q216167-001 |
ADDITIONAL DETAILS
| CONDITION | Remanufactured |
| UPC / Barcode | 00840490540804 |
| WEIGHT | 3.00 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"
Ensure proper emissions monitoring with the Peterbilt / Kenworth Paccar PX7, PX9, MX13 DPF Sensor (2015–2022, OEM Q21-6170-001KIT). This genuine OEM component is designed to measure diesel particulate filter (DPF) pressure accurately, helping maintain efficient regeneration cycles and compliance with emissions regulations. Built to meet Paccar, Peterbilt, and Kenworth specifications, it provides a precise fit and dependable signal transmission to the engine control system. The sensor’s durable, heat-resistant construction ensures reliable operation even in demanding environments. Rely on Tamerx Diesel Products LLC for authentic DPF system replacement parts that deliver long-lasting reliability, accuracy, and consistent performance for your Paccar-powered trucks.
FITMENT CHART
| YEAR | MAKE | ENGINE(S) | ||||
|---|---|---|---|---|---|---|
| 2015 | Paccar | PX7 | PX9 | MX13 | ||
| 2016 | Paccar | PX7 | PX9 | MX13 | ||
| 2017 | Paccar | PX7 | PX9 | MX13 | ||
| 2018 | Paccar | PX7 | PX9 | MX13 | ||
| 2019 | Paccar | PX7 | PX9 | MX13 | ||
| 2020 | Paccar | PX7 | PX9 | MX13 | ||
| 2021 | Paccar | PX7 | PX9 | MX13 | ||
| 2022 | Paccar | PX7 | PX9 | MX13 | ||
PEOPLE ALSO ASKS | BLOG(S)
The Peterbilt and Kenworth Paccar PX7, PX9, and MX13 engines use the OEM Q21-6170-001KIT sensor as a crucial component in their emissions control systems. This sensor plays an essential role in keeping the Diesel Exhaust Fluid (DEF) system accurate, ensuring the engine runs clean and remains compliant with strict environmental regulations.
The Q21-6170-001KIT sensor continuously measures the quality, concentration, and level of DEF fluid in the tank. It helps the Selective Catalytic Reduction (SCR) system perform its job of converting harmful nitrogen oxide (NOx) emissions into harmless nitrogen and water vapor. By sending precise data to the engine control module, it allows the system to make real-time adjustments for optimal efficiency.
Key functions of the Q21-6170-001KIT sensor include:
- Monitoring DEF fluid quality to detect contamination or dilution
- Measuring fluid level to prevent low-DEF warnings
- Communicating data to the engine control module for accurate dosing
- Supporting consistent operation of the SCR and DPF systems
- Helping maintain emissions compliance across driving conditions
When this sensor functions properly, it prevents costly repairs, engine derates, and emission faults. The Q21-6170-001KIT is engineered to meet OEM standards, ensuring dependable performance in Peterbilt and Kenworth models equipped with Paccar PX7, PX9, and MX13 engines from 2015 to 2022.
This small but vital component keeps your truck running efficiently, cleanly, and in compliance—mile after mile.
The Diesel Particulate Filter (DPF) sensor plays a crucial role in monitoring exhaust pressure and helping your vehicle’s emissions system operate efficiently. When it starts giving faulty readings or triggers warning lights, many drivers wonder if it can simply be cleaned instead of replaced.
While cleaning a DPF sensor might seem like a quick fix, it’s not a reliable or long-term solution. These sensors are precision components designed to detect minute pressure differences and temperature changes. Dirt, soot, or residue inside the sensor can’t be fully removed without damaging the sensitive internal elements.
Here’s why cleaning often fails:
- Contaminants
- can enter the sensor housing and distort readings.
- Soot buildup
- can harden, making it nearly impossible to remove.
- Chemical cleaners
- may damage internal electronics.
- Temporary fixes
- often lead to recurring warning lights.
If your DPF sensor is malfunctioning, it’s best to diagnose the root cause — such as a clogged DPF, failed wiring, or sensor degradation. In most cases, replacement is the safest option to restore accurate readings and keep your emissions system functioning correctly.
Proper maintenance and high-quality fuel can help extend the lifespan of your new sensor and prevent future failures.
It monitors Diesel Exhaust Fluid (DEF) or Diesel Particulate Filter (DPF) system parameters such as fluid level or concentration to ensure the after-treatment system operates correctly.
Symptoms include after-treatment fault codes, erratic DEF tank/level readings, engine derate mode, or warning lights related to emissions systems.
Because using the proper part ensures compatibility with the vehicle’s wiring, sensors and ECM calibration – using an incorrect piece may trigger incorrect readings or faults.
In most cases no special programming is required; once installed and connected correctly the system will read the new sensor. Clearing fault codes and verifying reading accuracy is recommended.












































































































































































