303.04.0021.06 Compatible ECAS Solenoid Valve Kit

What is an ECAS solenoid valve repair kit?

An ECAS solenoid valve repair kit is a service set designed to renew the worn elements inside the solenoid valve blocks of an electronically controlled air suspension system. These kits typically include essential sealing components to restore the functionality of the valve block, which manages air bellows to maintain constant chassis height based on control unit commands.

Vehicle and engine compatibility

This repair kit is compatible with Volvo models including FMX, FH16, FH13, and FM series, as well as Renault Trucks Magnum and Premium. It is also fitted to Ford Trucks Cargo models and Mack Pinnacle/Granite units. These components are designed for heavy commercial vehicle applications where precise pneumatic control is required.

Installation and maintenance guidance

To ensure correct fitment, technicians should verify the valve block type and port configuration before installation. Replacing worn seals, diaphragms, or plungers can prevent common issues such as air leaks or delayed level response during suspension adjustment.

Troubleshooting and selection

When performing maintenance, always check the electrical connector pins and port layout to ensure a precise match with the existing system architecture. Consult your authorized distributor.

OE cross-reference

303.04.0021.06 (ECAS Solenoid Valve Repair Kit) is the equivalent of the WABCO OE number. This part directly replaces WABCO OE number 4728809342.