04-31354-003 | Genuine Freightliner® Diesel Exhaust Fluid (DEF) Header 18"

SKU: 04-31354-003 MPN: 04-31354-003

Maximize DEF system precision with the Genuine Freightliner Diesel Exhaust Fluid (DEF) Header. Condition: new. Part number: 04-31354-003. Digital CANbus sensor ensures reliable performance.

$2,849.00
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 Freightliner® Brand Freightliner®
Part Number 04-31354-003 Part Number 04-31354-003
Cross Reference 0431354003 Cross Reference 0431354003
Interchange Part Numbers 04-31354-002, 0431354002 Interchange Part Numbers 04-31354-002, 0431354002
Specifications
Sensor Type Digital (canbus) Sensor Type Digital (canbus)
DEF Header Height (IN) 18 (17.5) DEF Header Height (IN) 18 (17.5)
DEF Suction Fitting Dia. (IN) 5/16 SAE J2044 DEF Suction Fitting Dia. (IN) 5/16 SAE J2044
DEF Return Fitting Dia. (IN) 3/8 SAE J2044 DEF Return Fitting Dia. (IN) 3/8 SAE J2044
Coolant Inlet Fitting Dia. (IN) VDA NW08 Nipple Coolant Inlet Fitting Dia. (IN) VDA NW08 Nipple
Coolant Outlet Fitting Dia. (IN) VDA NW08 Nipple Coolant Outlet Fitting Dia. (IN) VDA NW08 Nipple
In-Tank Filter 40µ In-Tank Filter 40µ
Tank Interface 6 Bolt Tank Interface 6 Bolt
Operating Voltage Range 9 to 32V Operating Voltage Range 9 to 32V

Useful Information

Description and Purpose:

This is a Genuine Freightliner DEF Header with Part number: 04-31354-003, listed as a new part. It includes a digital CANbus sensor, proper 5/16" suction and 3/8" return fittings, and a 6-bolt tank interface. The header ensures the DEF system works correctly, maintaining smooth flow to the SCR system and keeping emissions under control. Cross reference: 0431354003; Interchange part numbers: 04-31354-002, 0431354002

Why Replacement is Important:

A worn or damaged DEF header can disrupt DEF flow, causing warning lights or emissions problems. Installing a proper new header keeps the system stable.

Impact on Vehicle Performance:

Maintains proper SCR system operation, ensuring reliable emissions control and preventing error codes or interruptions in operation.

Manufacturer Information: 

Freightliner® parts are engineered with precision to meet the demands of commercial fleets, providing strength and reliability in every mile.

Tags & Category: Diesel Exhaust Fluid Header, DEF Tank Header, Freightliner DEF Header, DEF Header with Sensor, DEF Level Sensor, DEF Suction and Return Fittings, DEF Coolant Line Connector, Digital Canbus DEF Sensor, DEF Header Assembly, DEF Tank Module, DEF Header Freightliner 6 Bolt, DEF System Components, Emissions Control Parts, SCR System DEF Header, Genuine Freightliner DEF Header, DEF Header Replacement, Heavy Duty Truck DEF Header

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: 04-31354-003