2515990C1 | Genuine International® / Navistar® Diesel Exhaust Fluid (DEF) Tank QLS Head 11" 5 Gall

SKU: 2515990C1 MPN: 2515990C1

Cold-weather starts handled with confidence by the Genuine International / Navistar DEF Tank QLS Head — keeps level and quality readings steady. Part number: 2515990C1. Condition: new. Built for 5-gallon heated tanks.

$379.00
No Core Charge
3 in stock

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Contact us to check if overnight next-day delivery is available for your order - PN: 2515990C1

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Product Description

Product Name Diesel Exhaust Fluid (DEF) Tank Head Product Name Diesel Exhaust Fluid (DEF) Tank Head
Condition New Condition New
Brand International® / Navistar® Brand International® / Navistar®
Part Number 2515990C1 Part Number 2515990C1
Specifications
Sensor Type QLS Sensor Type QLS
Electrical Connector Deutsch DT4 (STD) Electrical Connector Deutsch DT4 (STD)
Sensor Type Digital (canbus) Sensor Type Digital (canbus)
DEF Header Height (IN) 11 DEF Header Height (IN) 11
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:

Delivered as a Genuine component by International / Navistar, the DEF Tank QLS Head Part number: 2515990C1 integrates a digital canbus quality sensor, heated assembly, and 40µ filtration for 5-gallon SCR tanks with a 6-bolt configuration. Featuring an 11-inch heated header, Deutsch DT4 electrical connection, 3/8 suction and 5/16 return (SAE J2044), and dual 5/8 hose bead coolant ports, it ensures controlled thermal flow and contaminant-free DEF delivery.

Why Replacement is Important:

Once the filter, heater, or digital sensor begins to degrade, the SCR system loses reliable DEF purity data and may suffer repeated fault codes. Replacement restores filtration, routing, and measurement precision.

Impact on Vehicle Performance:

Consistent thermal and filtration control maximizes SCR dosing accuracy, helping the vehicle avoid power-reducing derates and sustain compliant emissions output.

Manufacturer Information: 

International® produces components that help maximize vehicle uptime and maintain consistent operational efficiency.

Navistar® offers parts developed to maximize efficiency and reduce operational disruptions for commercial fleets.

Tags & Category: DEF Tank Head, DEF QLS Head, Diesel Exhaust Fluid Tank Module, DEF Sensor Head, DEF Level Sensor, DEF Quality Sensor, DEF Suction Module, Coolant-Heated DEF Header, International DEF System, Navistar Emissions Component, Deutsch DT4 Connector, Digital CANBUS Sensor, 5 Gallon DEF Tank, 11 Inch DEF Header, 3/8 SAE J2044 Suction, 5/16 SAE J2044 Return, 5/8 Hose Bead Coolant Ports, 40 Micron DEF Filter, 6 Bolt Tank Interface

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: 2515990C1