4097728C91 | Genuine International® / Navistar® Diesel Exhaust Fluid (DEF) Header 25" for 10.6—32G

SKU: 4097728C91 MPN: 4097728C91

Unlock extended DEF control using the New Genuine International / Navistar DEF Header. Part number: 4097728C91. A 25-inch coolant-heated design supporting 10.6 to 32-gallon tanks with digital canbus monitoring and 40µ filtration.

$479.00
No Core Charge
3 in stock

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Product Description

Product Name Diesel Exhaust Fluid (DEF) Header Product Name Diesel Exhaust Fluid (DEF) Header
Condition New Condition New
Brand International® / Navistar® Brand International® / Navistar®
Part Number 4097728C91 Part Number 4097728C91
Specifications
Tank capacity 10.6, 10.8, 15.9, 19, 25.2, 32 Gallons Tank capacity 10.6, 10.8, 15.9, 19, 25.2, 32 Gallons
DEF Header Height (IN) 25 DEF Header Height (IN) 25
DEF Return Fitting Dia. (IN) 5/16 SAE J2044 DEF Return Fitting Dia. (IN) 5/16 SAE J2044
Coolant Outlet Fitting Dia. (IN) 5/8 Hose Bead Coolant Outlet Fitting Dia. (IN) 5/8 Hose Bead
Electrical Connector Deutsch DT4 (STD) Electrical Connector Deutsch DT4 (STD)
Sensor Type Digital (canbus) Sensor Type Digital (canbus)
DEF Suction Fitting Dia. (IN) 3/8 SAE J2044 DEF Suction Fitting Dia. (IN) 3/8 SAE J2044
Coolant Inlet Fitting Dia. (IN) 5/8 Hose Bead Coolant Inlet 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:

Installed as a New Genuine International / Navistar component and identified as Part number: 4097728C91, this DEF Header maintains reliable SCR operation by controllig measurement, heating, and suction from the tank. The digital canbus sensor provides constant level and purity reporting, while a 40µ filter screen keeps sediment out of the pump assembly.

Why Replacement is Important:

When DEF purity or level data becomes unstable, the ECM reacts as if DEF quality is failing, even when the fluid is fine.

Impact on Vehicle Performance:

Restoring this unit removes misleading fault codes, protecting engine output and keeping emissions systems compliant without forced power reductions.

Manufacturer Information:

International® integrates advanced materials and trusted manufacturing practices to support reliable functionality across commercial trucks.

Navistar® introduces industry-focused engineering that balances durability, cost control, and long-term fleet maintenance strategies.

Tags & Category: DEF Header, DEF Tank Head, Diesel Exhaust Fluid Header Module, DEF Sensor Head, DEF Quality Sensor, DEF Level Sensor, DEF Header 25 Inch, 3/8 SAE J2044 Suction, 5/16 SAE J2044 Return, 5/8 Hose Bead Coolant Ports, Coolant-Heated DEF Header, Deutsch DT4 Connector, Digital Canbus Sensor, 40 Micron DEF Filter, 6 Bolt Tank Interface, International DEF System, Navistar Emissions Component.

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: 4097728C91