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04-31677-001 Genuine Freightliner DEF Header 13/23G
04-31677-001 Genuine Freightliner DEF Header 13/23G

04-31677-001 Genuine Freightliner DEF Header 13/23G

P/N: 04-31677-001 Manufactured by: Freightliner
$1,175.00 - $1,175.00
$1,175.00
$1,175.00 - $1,175.00
$1,175.00
1 in Stock
Condition: New
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At Line Truck Parts LLC, we are committed to providing reliable automotive parts and a transparent customer experience. Eligible parts purchased directly from our website are covered by a 2-Year Limited Warranty, giving you added confidence in your purchase. Learn More

Product Overview

The 04-31677-001 is a genuine Freightliner DEF Header 13/23G designed for diesel exhaust fluid system applications. This DEF header operates within the SCR emissions system by supporting DEF level management and fluid delivery between the DEF tank and after-treatment components. 

Product Features

The 04-31677-001 DEF Header 13/23G is manufactured to Freightliner factory specifications for diesel exhaust fluid system operation.

  • Integrates with the DEF tank assembly to support SCR emissions system operation.
  • Supports proper DEF supply between the tank and emissions control components.
  • Designed for the 13/23G DEF header configuration.
  • Manufactured to match the original equipment mounting and sealing configuration.
  • Built for use with compatible Freightliner DEF system assemblies.
  • Supports reliable communication between the DEF tank assembly and associated system components.

Technical Specifications

Condition New
Part Number 04-31677-001
Brand Freightliner
Part Type DEF Header 13/23G
Weight 10.20 lb


Installation Notes

The 04-31677-001 should be installed with all DEF tank sealing surfaces clean and the mounting interface inspected before installation. After installation, verify all fluid and electrical connections and confirm proper DEF system operation.

Verify part number, VIN, engine configuration, production date, emissions package, and applicable factory options before installation.