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911181 Genuine Capacity DEF Multifunction Head Unit

911181 Genuine Capacity DEF Multifunction Head Unit

P/N: 911181 Manufactured by: Capacity
$1,099.00 - $1,099.00
$1,099.00
$1,099.00 - $1,099.00
$1,099.00
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 911181 is a genuine Capacity DEF Multifunction Head Unit designed for diesel exhaust fluid tank applications. This DEF multifunction head unit operates within the emissions system and manages DEF fluid transfer connections, coolant circulation interfaces, and digital CANbus sensor communication. 

Product Features

The 911181 DEF Multifunction Head Unit is manufactured to Capacity factory specifications for DEF tank monitoring and fluid management.

  • Configured with an 18-inch DEF header height.
  • Features a Deutsch DT4 standard electrical connector interface.
  • Utilizes a digital CANbus sensor communication system.
  • Includes a 3/8 SAE J2044 DEF suction fitting connection.
  • Equipped with a 5/16 SAE J2044 DEF return fitting connection.
  • Uses a 4.05-inch diameter bore seal tank interface.

Technical Specifications

Condition New
Part Number 911181
Brand Capacity 
Part Type DEF Multifunction Head Unit
Sensor Type Digital (canbus)
In-Tank Filter 40µ
Weight 4.46 lbs


Installation Notes

The 911181 DEF Multifunction Head Unit should be installed using the specified DEF, coolant, and electrical connection points provided by the original equipment system. Inspect the tank sealing surface, fluid fittings, and electrical connector before installation to ensure proper assembly and communication with the emissions control system.

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