5012176R91 | Genuine International® / Navistar® Diesel Exhaust Fluid (DEF) Tank QLS Head 11" 5 Gall

SKU: 5012176R91 MPN: 5012176R91

Clogged filters and weak signals disappear with the New Genuine International / Navistar DEF QLS Head guarding every reading. Part number: 5012176R91. Fits 5-gallon heated tanks with precision suction ports.

$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: 5012176R91

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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 5012176R91 Part Number 5012176R91
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:

This New Genuine International / Navistar DEF Tank QLS Head, marked with Part number: 5012176R91, supports digital quality sensing and heated filtration for compact 5-gallon DEF tank assemblies. Engineered with a Deutsch DT4 connector and canbus output, it integrates a 40µ filter to protect the SCR dosing pump, while SAE J2044 suction and return (3/8 and 5/16) ensure precise flow.

Why Replacement is Important:

Over time, internal clogging, heater failure, or inaccurate signal transmission can compromise DEF operation and activate power-limiting derates. Installing a new header ensures proper monitoring and thawing performance.

Impact on Vehicle Performance:

Properly warmed, filtered DEF provides reliable reaction within the SCR catalyst, reducing downtime and stabilizing drivability in all climates.

Manufacturer Information: 

International® parts are developed to offer dependable performance for logistics, construction, and long-haul applications.

Navistar® components are built with precision engineering for stable performance in challenging driving conditions.

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: 5012176R91