4163695C91 | Genuine International® DEF Tank Level Sensor 15.5G/16G/23G QLS SSI

Description and Purpose:

The OEM DEF Tank Level Sensor is a component designed for accurate monitoring of Diesel Exhaust Fluid in tank capacities of 15.5, 16, and 23 gallons, supporting proper function of aftertreatment systems in commercial trucks. Part Number: 4163695C91. Manufactured by International / Navistar. Condition: New. This sensor is equipped with advanced QLS SSI technology, ensuring stable and precise DEF level readings. It plays a key role in enabling efficient operation of SCR (Selective Catalytic Reduction) systems. Built for demanding heavy-duty environments, this sensor contributes directly to emission system accuracy and system integrity.

Why Replacement is Important:

A defective DEF level sensor may result in false readings, triggering fault codes or limiting vehicle operation. Replacing the sensor ensures continuous emissions control and prevents SCR-related disruptions.

Impact on Vehicle Performance:

Reliable DEF level data enables proper fluid dosing, reducing NOx emissions and preserving engine efficiency, which is critical for sustained commercial fleet performance.

Manufacturer Information:

International® is known for building versatile vehicles designed to maximize uptime, simplify maintenance, and support heavy-duty applications across multiple industries.

Navistar® delivers reliable powertrain solutions and integrated vehicle systems engineered to enhance uptime, safety, and operational efficiency.

Tags & Category: DEF Sensor, DEF Level Sensor, DEF Tank Sensor, DEF System Parts, SCR System Components, Diesel Exhaust Fluid Sensor, QLS Sensor, SSI Sensor, Diesel Emissions Parts, Aftertreatment System, Emissions Control, Truck DEF Sensor, Universal DEF 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.