002 540 39 97 Gearbox Housing Coil for Mercedes-Benz

What does a gearbox housing coil do?

The gearbox housing heavy series coil acts as the electrical drive element within electro-pneumatic valve assemblies, managing gear, split, and range shifts in automated transmissions. It converts electrical signals from the control unit into a magnetic field, which moves the valve piston to direct compressed air to the shift actuator. This component is essential for maintaining smooth shifting cycles in heavy commercial vehicles.

Vehicle and system compatibility

This part is compatible with Mercedes-Benz vehicles. The heavy-duty construction is specifically designed to withstand high vibration and extreme engine-bay temperatures, ensuring that the winding integrity remains stable during frequent switching cycles. It is an essential component for the reliable operation of pneumatically controlled gearboxes.

Installation and maintenance guidance

For proper installation, technicians should verify the transmission model and the specific mounting position on the valve block, whether it is for gear, split, or range functions. It is vital to ensure that the connector type and pin layout match the vehicle's wiring harness to prevent electrical faults. Consulting the vehicle's service manual for exact voltage and resistance requirements is recommended to avoid triggering fault codes.

Troubleshooting and selection

When this coil begins to fail, symptoms often include delayed or harsh gear shifts or a complete failure to shift. Replacing a worn coil helps preserve transmission reliability and drivetrain service life. Check the compatibility list.

OE cross-reference

303.11.0054 (Gearbox Housing Heavy Series Coil) is the equivalent of the Mercedes-Benz OE number. This part directly replaces Mercedes-Benz OE number 0025403997.