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Free Standard Shipping on Eligible Orders Over $100 in the Contiguous U.S.

8600553-2S1 Genuine Rosenbauer Cummins DEF Multifunction Head Unit

P/N: 8600553-2S1 Manufactured by: Rosenbauer Cummins
Original price $1,049.00 - Original price $1,049.00
Original price
$1,049.00
$1,049.00 - $1,049.00
Current price $1,049.00
1 in Stock
Condition: New
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2-Year Warranty

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 8600553-2S1 is a genuine Rosenbauer Cummins DEF multifunction head unit used in diesel exhaust fluid tank and emissions control systems. This assembly manages DEF fluid routing, sensor communication, and coolant circulation connections required for proper DEF system operation.

Product Features

The 8600553-2S1 DEF multifunction head unit is manufactured to OEM specifications for emissions system service.

  • Supports DEF tank monitoring functions
  • Routes DEF suction and return flow
  • Interfaces with vehicle emissions controls
  • Utilizes Delphi WPT-4 and WPT-3 connectors
  • Connects coolant circulation lines
  • Assists DEF system communication

Technical Specifications

Condition New
Part Number 8600553-2S1
Brand Rosenbauer Cummins
Part Type DEF Multifunction Head Unit
DEF Header Height 18
DEF Suction Fitting Dia 3/8 SAE J2044
DEF Return Fitting Dia 5/16 SAE J2044
Coolant Outlet Fitting Dia 5/8 Hose Bead
Electrical Connector Delphi WPT-4 and Delphi WPT-3
Weight 8.07 lbs


Installation Notes

The 8600553-2S1 should be installed after inspecting the DEF tank opening, connector terminals, and coolant hose connections for contamination or physical damage. Verify DEF suction, DEF return, and electrical communication functions after installation before placing the vehicle into service.

Always verify part number, DEF header height, connector configuration, fitting sizes, and emissions system application before installation.