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303.11.0054 Gearbox Housing Heavy Series Coil, Gearbox

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303.11.0054 Mercedes-Benz Compatible Gearbox Housing Coil

303.11.0054

Summary

High-strength gearbox housing heavy series coil designed for Mercedes-Benz heavy commercial vehicle transmissions. This component ensures precise electro-pneumatic valve operation and maintains gear shift reliability under heavy-duty conditions. Equivalent to OE Mercedes-Benz 0025403997 and WABCO 4724000012.

Product identifiers
EAN Code8699031073118
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Compatible OEM Codes

  • WABCO
    • 472 400 001 2
  • MERCEDES BENZ
    • 002 540 39 97

Description

What does a gearbox housing coil do?

This gearbox housing heavy series coil serves as the electrical drive element within the electro-pneumatic valve assembly of automated manual transmissions. It functions by converting electrical signals from the control unit into a magnetic field, which moves the valve piston to direct compressed air toward the shift actuator. This process is vital for managing gear, split, and range shifts in heavy commercial vehicle drivetrains.

Compatibility with Mercedes-Benz vehicles

This component is compatible with Mercedes-Benz vehicles and is designed to withstand high vibration and engine-bay temperatures. It is specifically engineered for use in the pneumatically controlled gearboxes found in trucks and buses, ensuring smooth shifting transitions and long-term drivetrain reliability.

Installation and maintenance guidance

For proper installation, technicians should verify the mounting position on the valve block and ensure the connector pins match the vehicle wiring harness. It is essential to confirm that the coil's resistance aligns with the transmission control unit's requirements to prevent fault codes. Maintaining clean mounting surfaces ensures a proper seal against moisture and dust.

Troubleshooting shift issues

If gear shifts become delayed or harsh, it may indicate that this solenoid requires inspection or replacement. Always consult your authorized distributor to ensure correct fitment for the specific transmission model.

OE cross-reference

303.11.0054 (Gearbox Housing Heavy Series Coil) is the equivalent of the Mercedes-Benz and WABCO OE numbers. This part directly replaces Mercedes-Benz OE number 0025403997. It also replaces WABCO OE number 4724000012.

Other OEMs

MERCEDES BENZ

  • A0025403997
  • 0025403997
  • 002.540.3997
  • 002.540.39.97
  • 002 540 3997
  • 002 540 39 97

WABCO

  • 4724000012
  • 472.400.001.2
  • 472 400 001 2

Related Products

Repair Kits

Compatible Vehicles

Compatible Vehicles
BrandModelModel TypeEngine
MERCEDES BENZ
WABCO

FAQ

What is the function of this gearbox housing coil?
It acts as an electro-pneumatic solenoid that converts electrical signals into magnetic movement to direct compressed air for gear shifts.
Which vehicles are compatible with this component?
This specific part is designed for use in Mercedes-Benz heavy commercial vehicles with automated or pneumatic transmissions.
What are common symptoms of a failing coil?
Technicians may observe delayed gear shifts, harsh shifting movements, or a complete failure to change gears during operation.
How should I select the correct replacement coil?
Verify the transmission model, mounting position on the valve block, and ensure the connector type matches the vehicle wiring harness.
What are the OE reference numbers of this part?
303.11.0054 directly replaces Mercedes-Benz OE number 0025403997. It also replaces WABCO OE number 4724000012.