4163700C91 | Genuine International® / Navistar® Diesel Exhaust Fluid (DEF) Header 25" for 10.6—32G

SKU: 4163700C91 MPN: 4163700C91

Inject reliability into every DEF cycle with the Genuine International / Navistar DEF Header. Condition: new. Part number: 4163700C91. Built for wide tank ranges, heated coolant ports, DT4 connection, and accurate digital canbus sensing.

$479.00
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: 4163700C91

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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 4163700C91 Part Number 4163700C91
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:

This Genuine International / Navistar Diesel Exhaust Fluid (DEF) Header with Part number: 4163700C91, comes in new condition and is designed to manage DEF flow efficiently across large-capacity tanks. Its precise digital canbus sensor, 6-bolt tank interface, and 5/8 inch coolant ports ensure stable DEF circulation for accurate monitoring.

Why Replacement is Important:

A worn or damaged header can disrupt DEF flow, potentially causing system warnings or inefficiencies in urea injection.

Impact on Vehicle Performance:

Replacing it restores proper fluid management, keeping SCR systems functioning smoothly and emissions compliant.

Manufacturer Information:

International® supports high-mile performance through OEM-grade components built to operate in harsh conditions and frequent stop-and-go cycles.

Navistar® provides purpose-built components that maintain vehicle uptime by reducing failure risks in high-load duty cycles.

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: 4163700C91