Q21-6127-001K1T | Genuine Paccar® Diesel Exhaust Fluid (DEF) Concentration Sensor
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Return policyWarranty
Parts Finder Q offers a warranty for all types of parts in any condition. The warranty applies exclusively to purchases made directly through our website (partsfinderq.com). Please note that purchases made through third-party platforms like eBay or Amazon are not covered by this warranty.
Product Description
| Product Name | Diesel Exhaust Fluid (DEF) Concentration Sensor | Product Name Diesel Exhaust Fluid (DEF) Concentration Sensor |
| Condition | New | Condition New |
| Brand | Paccar® | Brand Paccar® |
| Part Number | Q21-6127-001K1T | Part Number Q21-6127-001K1T |
| Cross Reference Part Number | Q216127001K1T, Q21 6127 001K1T, Q21-6127-001, Q216127001, Q21 6127 001 | Cross Reference Part Number Q216127001K1T, Q21 6127 001K1T, Q21-6127-001, Q216127001, Q21 6127 001 |
| Type | DEF Sensor | Type DEF Sensor |
Useful Information
Description and Purpose:
The Paccar Diesel Exhaust Fluid (DEF) Concentration Sensor is supplied as a new unit. Part number: Q21-6127-001K1T monitors the urea level in the DEF tank, ensuring the correct mixture for the SCR system. Accurate measurements help maintain emissions compliance and support stable engine performance. Cross Reference Part Number: Q216127001K1T, Q21 6127 001K1T, Q21-6127-001, Q216127001, Q21 6127 001.
Why Replacement is Important:
A failing DEF sensor can trigger engine warnings, reduce SCR efficiency, or affect emission compliance. Replacing it keeps the system operating correctly and prevents performance issues.
Impact on Vehicle Performance:
With a functional sensor, DEF dosing is precise, emissions remain controlled, and engine performance is stable and efficient.
Manufacturer Information:
Paccar® is a leading global manufacturer of commercial vehicles and components, including Kenworth, Peterbilt, and DAF. Their sensors and parts are engineered for reliability, accuracy, and long-term durability in demanding truck applications.
Tags & Category: Diesel Exhaust Fluid Concentration Sensor, DEF Concentration Sensor, Urea Concentration Sensor, DEF Quality Sensor, DEF Purity Sensor, Exhaust Fluid Concentration Sensor
Warranty:
Parts Finder Q offers a 365-days warranty for all types of parts in any condition. The warranty applies exclusively to purchases made directly through our website (partsfinderq.com). Please note that purchases made through third-party platforms like eBay or Amazon are not covered by this warranty.
