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4378048 Genuine Cummins DEF Tank Header Sensor Assembly
4378048 Genuine Cummins DEF Tank Header Sensor Assembly
4378048 Genuine Cummins DEF Tank Header Sensor Assembly

4378048 Genuine Cummins DEF Tank Header Sensor Assembly

P/N: 4378048 Manufactured by: Cummins
$749.00 - $749.00
$749.00
$749.00 - $749.00
$749.00
1 in Stock
Condition: New
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Product Overview

The 4378048 is a genuine Cummins DEF Tank Header designed for diesel exhaust fluid tank and SCR emissions system applications. This assembly monitors DEF level and temperature while supporting fluid pickup and electrical communication within the emissions system.

Product Features

The 4378048 DEF Tank Header is manufactured to Cummins factory specifications for DEF system monitoring.

  • Monitors diesel exhaust fluid level
  • Tracks DEF temperature conditions
  • Supports SCR emissions system operation
  • Includes integrated sensor and pickup tube design
  • Compatible with Cummins EcoFit system layout
  • Uses Shaw-style sending unit configuration

Technical Specifications

Condition New
Part Number 4378048
Brand Cummins
Part Type DEF Tank Header
Weight 10.0 lbs
Dimensions 17.68 in 
Sensor Function DEF Level and Temperature Monitoring
System Diesel Exhaust Fluid System
Configuration Integrated Sensor and Pickup Tube
Sending Unit Style Shaw Style
Included Components DEF Sensor Head Assembly, Mounting Gasket / Seal Rings, Electrical Connector


Installation Notes

The 4378048 DEF Tank Header should be matched to the correct DEF tank, sensor wiring, and Cummins EcoFit system layout before installation. Inspect the tank opening, seal rings, pickup tube position, and electrical connector before service.

Always verify DEF tank configuration, SCR system layout, connector style, and sensor head height before installation.