303.04.0028 Compatible ECAS Solenoid Valve — Volvo

What is an ECAS solenoid valve?

An ECAS solenoid valve is an electronically actuated component that regulates the air flow to and from the air springs to manage chassis height. This part is essential for the precise operation of electronic air suspension systems in heavy commercial vehicles, ensuring stability and load management.

Compatible vehicles and engines

This component is specifically designed for various heavy-duty applications, including Volvo models such as FH12, FH13, FM series, and VNL trucks, as well as Mack Granite and Pinnacle units. It also serves Renault Trucks models like Kerax and Premium. This valve is also fitted to DAF, Iveco, and MAN trucks.

Technical specifications and installation

Technical specifications include a maximum operating pressure of 20 BAR and M22x1,5 VOSS port configurations (Ports 11, 21, 22, 23). The electrical connection utilizes a Bayonet DIN 72585 A1-4.2-Sn/K2 / 24V interface to ensure reliable communication with the vehicle's ECU. When replacing, technicians should verify the integrity of the electrical harness and the cleanliness of the pneumatic lines.

Maintenance and troubleshooting

To ensure optimal system performance, check for air leaks around the VOSS ports during routine inspections. If the vehicle exhibits uneven ride height or inconsistent leveling, this solenoid valve may require inspection or replacement. Check the compatibility list.

OE cross-reference

303.04.0028 (ECAS Solenoid Valve) is the equivalent of the DAF, Iveco, MAN, Renault Trucks, Volvo and WABCO OE numbers. This part directly replaces DAF OE numbers 1304587, 1343255. It also replaces Iveco OE number 041211012, MAN OE numbers 81259026145, 81259026238, 81259029145, Renault Trucks OE number 5010457434, Volvo OE number 20707214 and WABCO OE number 4728800300.