5012174R91 | Genuine International® DEF Tank Level Sensor 15.5G/16G/23G QLS SSI

SKU: 5012174R91 MPN: 5012174R91

This Genuine DEF Tank Level Sensor keeps your aftertreatment system running clean. Brand: International / Navistar. Part Number: 5012174R91. Condition: New. Compatible with 15.5G, 16G, and 23G DEF tanks.

$389.00
No Core Charge
3 in stock

Need it fast? We offer overnight shipping

Contact us to check if overnight next-day delivery is available for your order - PN: 5012174R91

  • Free shipping over $199 Order today — get it
  • Clock Icon
    Orders before 7 PM EST ship same business day
  • Location icon, warehouse pickup point.
    Pickup available. Usually ready in 24 hours

Product Description

Product Name DEF Tank Level Sensor Product Name DEF Tank Level Sensor
Condition New Condition New
Brand International® / Navistar® Brand International® / Navistar®
Part Number 5012174R91 Part Number 5012174R91
Specifications
Compatibility 15.5G, 16G, 23G DEF Tanks Compatibility 15.5G, 16G, 23G DEF Tanks
Functions Ensures accurate DEF level sensing (QLS) with serial data communication (SSI) Functions Ensures accurate DEF level sensing (QLS) with serial data communication (SSI)

Useful Information

Description and Purpose:

This OEM Diesel Exhaust Fluid Level Sensor with QLS/SSI signal output. Part Number: 5012174R91. Brand: International / Navistar. Condition: New. Designed for 15.5, 16, and 23-gallon DEF tanks, this sensor is responsible for monitoring fluid levels in SCR aftertreatment systems. It delivers real-time fluid data to the vehicle’s control module, ensuring accurate DEF dosing and emissions compliance. Built for commercial diesel trucks, it withstands the demands of high-temperature, high-vibration environments while helping maintain long-term system reliability.

Why Replacement is Important:

Failure to replace a malfunctioning DEF sensor can cause engine derate, system warnings, and poor emissions performance. A new sensor restores accurate monitoring and ensures proper SCR operation.

Impact on Vehicle Performance:

With reliable fluid level data, the engine maintains its full power range and avoids disruptions linked to DEF system failures or dosing inaccuracies.

Manufacturer Information:

International® emphasizes serviceability and component accessibility to minimize downtime in demanding operations.

Navistar® supports customers with flexible vehicle configurations tailored to specific industry requirements.

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.

Customer Reviews

Be the first to write a review
0%
(0)
0%
(0)
0%
(0)
0%
(0)
0%
(0)
  • Icon Truck, Fast Delivery
    Free shipping over $199 Place an order today and receive it on Mar 6
  • Clock Icon
    Orders placed before 7-PM EST will ship same business day
  • Location icon, warehouse pickup point.
    Pickup available usually ready in 24 hours
  • Need it fast? We offer overnight shipping

    Contact us to check if overnight next-day delivery is available for your order - PN: 5012174R91