303.02.0001.02 Compatible Multi-circuit Protection Valve Repair Kit

What does a multi-circuit protection valve repair kit do?

This multi-circuit protection valve repair kit is a complete replacement component set prepared for overhauling the multi-circuit protection valve that manages several air lines from a single housing in the pneumatic brake circuit of heavy commercial vehicles. This kit brings together diaphragms, O-rings, seals, spring sets, ball-valve elements and internal housing gasket groups in one package to ensure long-term reliability.

Vehicle and engine compatibility

The kit is specifically compatible with Ford Trucks models such as the Cargo 2526, Cargo 4136, Cargo 1838T, Cargo 3532, Cargo 3236, Cargo 3235, Cargo 1832, Cargo 3232, Cargo 3536, Cargo 3238, Cargo 2532, Cargo 2535, Cargo 3936, Cargo 2538, Cargo 2536, Cargo 1826, and Cargo 1835. It is also fitted to DAF, Mercedes-Benz, Scania, VDL, Solaris, and Iveco trucks.

Installation and maintenance guidance

For the workshop technician performing maintenance, this kit allows for the renewal of internal seals without the need to replace the entire valve unit. It is essential to ensure that the diaphragm and spring dimensions match the original specifications of the existing valve to maintain correct pressure balance and response speed. Consult your authorized distributor.

Troubleshooting and selection

When performing an overhaul, verify that all internal components are free from debris to prevent air leaks between circuits. Proper installation ensures that a leak in one circuit will not drain the remaining operational circuits in the pneumatic system.

OE cross-reference

303.02.0001.02 (Multi-circuit Protection Valve Repair Kit) is the equivalent of the Mercedes-Benz and WABCO OE numbers. This part directly replaces Mercedes-Benz OE number 0004202971. It also replaces WABCO OE number 9347059202.