4157846C91 | Genuine International® / Navistar® DEF Sensor, 7 Gallon Tank, QLS 1% SSI

Description and Purpose:

This DEF Sensor is a Genuine International / Navistar part, identified by Part number: 4157846C91, and comes in new condition. Designed for 7-gallon DEF tanks, it monitors QLS 1% SSI levels accurately, ensuring your SCR system receives the right fluid information at all times. Installing this new sensor helps maintain proper emissions monitoring and keeps your heavy-duty truck running smoothly without unexpected alerts. Interchange Part Number: 2515989C1

Why Replacement is Important:

A worn or malfunctioning DEF sensor can trigger false readings, SCR warnings, or engine derates. Prompt replacement helps avoid downtime and protects the emissions system.

Impact on Vehicle Performance:

Reliable DEF sensing ensures correct fluid dosing, supporting efficient engine operation and preventing performance issues under load.

Manufacturer Information:

International® delivers durable vehicles engineered to meet the demands of regional, long-haul, and vocational applications.

Navistar® designs heavy-duty vehicles and components to deliver reliability, fuel efficiency, and long-lasting service.

Tags & Category: Diesel Exhaust Fluid Sensor, DEF QLS Sensor, International, Navistar, QLS 1% SSI, DEF Tank Sensor, 7 Gallon DEF Tank, DEF Quality Level Sensor, SCR System Sensor, Emissions Control Component, Heavy Duty Truck 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.