2515988C3 | Genuine International® / Navistar® 12-Gal DEF Quality & Level Sensor Head Unit (QLS Module Assembly)

SKU: 2515988C3 MPN: 2515988C3

For reliable DEF system monitoring, choose the 12-Gal DEF Sensor Head Unit, by International/ Navistar, with Part Number: 2515988C3 and in Condition: new, compatible with N9, N10, N13, and DT engines from 2011-2016.

$649.00
No Core Charge
2 in stock

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Contact us to check if overnight next-day delivery is available for your order - PN: 2515988C3

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Product Description

Product Name DEF Quality & Level Sensor Head Unit Product Name DEF Quality & Level Sensor Head Unit
Condition New Condition New
Brand International® / Navistar® Brand International® / Navistar®
Part Number 2515988C3 Part Number 2515988C3
Engine Compatibility
International / Navistar N9, N10, N13, DT (2011-2016) International / Navistar N9, N10, N13, DT (2011-2016)
Tank Capacity Compatibility
Tank 12 Gallon Tank 12 Gallon
Specifications
Electrical Connector Deutsch DT4 (STD) Electrical Connector Deutsch DT4 (STD)
Sensor Type Digital (canbus) Sensor Type Digital (canbus)
DEF Header Height (IN) 18 DEF Header Height (IN) 18
DEF Suction Fitting Dia. (IN) 3/8 SAE J2044 DEF Suction Fitting Dia. (IN) 3/8 SAE J2044
DEF Return Fitting Dia. (IN) 5/16 SAE J2044 DEF Return Fitting Dia. (IN) 5/16 SAE J2044
Coolant Inlet Fitting Dia. (IN) 5/8 Hose Bead Coolant Inlet Fitting Dia. (IN) 5/8 Hose Bead
Coolant Outlet Fitting Dia. (IN) 5/8 Hose Bead Coolant Outlet Fitting Dia. (IN) 5/8 Hose Bead
In-Tank Filter 40µ In-Tank Filter 40µ
Tank Interface 6 Bolt Tank Interface 6 Bolt

Useful Information

Description and Purpose:

The DEF Sensor Head Unit (QLS Module Assembly), new, Part number: 2515988C3, from Genuine International/Navistar, accurately monitors diesel exhaust fluid levels in heavy-duty trucks. Designed for International / Navistar N9, N10, N13, and DT engines (2011–2016), it supports proper DEF dosing. This unit works with a 12-gallon DEF tank, ensuring reliable emissions system operation in commercial vehicles.

Why Replacement is Important:

A worn or faulty sensor may produce incorrect readings or system alerts. Replacing it ensures DEF levels stay accurate, keeping emissions controls functioning correctly.

Impact on Vehicle Performance:

Reliable DEF monitoring prevents derate events and keeps the engine and exhaust system running smoothly, supporting consistent truck operation.

Manufacturer Information:

International® builds commercial trucks for demanding applications, emphasizing durability and reliability. 

Navistar® develops engines and components trusted in medium- and heavy-duty fleets for long-term service.

Tags & Category: 12-Gal DEF Quality & Level Sensor, DEF QLS Module Assembly, DEF Sensor Head Unit, Diesel Exhaust Fluid Level and Quality Sensor, SCR System DEF Sensor, DEF Tank Sensor Module, Diesel Emission Control Sensor, Heavy Duty Truck DEF Sensor, DEF Monitoring Module, QLS Sensor Assembly

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.

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  • 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: 2515988C3