303.01.018 Relay Valve — Mercedes-Benz

This high-strength relay valve is an essential component within the pneumatic brake system, ensuring precise pressure modulation and reliable performance under heavy-duty operating conditions.

The Vaden Original 303.01.018 is the OE equivalent of the Mercedes-Benz 0044299444 relay valve used in various heavy commercial vehicles including Volvo FH series, Scania, and MAN models. This part is specifically engineered for high-pressure stability up to 13 BAR. It is fully compatible with the following OEM references: DAF 1518271, MAN 81521166089, MERCEDES BENZ 0044299444, RENAULT TRUCKS 5010588270, SCANIA 1413698, SCANIA 1935668, SCANIA 2038219, VOLVO 20733197, and WABCO 9730113000.

Designed for professional workshop technicians, this unit features four specialized ports (three M22x1,5 VOSS and one M16x1,5 VOSS) to ensure secure connections and optimal airflow control within the braking circuit. It is a critical part for maintaining the safety and responsiveness of the vehicle's pneumatic system.

The product is widely utilized across major fleets including Volvo FH/FM/FMX series, Scania heavy trucks, and Mack Granite/Pinnacle models to ensure consistent braking reaction times.