303.05.0002 Trailer Control Valve for Volvo Trucks

What does a trailer control valve do?

This trailer control valve plays a critical role in the pneumatic braking system of heavy commercial vehicles. It manages the air pressure distribution between the tractor unit and the trailer, ensuring consistent braking performance during deceleration. Built with high-strength components, this valve is engineered to withstand the rigorous pressure fluctuations inherent in heavy-duty air brake systems.

Compatible Volvo models and engines

This component is compatible with various Volvo models such as the F10, F12, FL10, FL12, N10, N12, NL10, NL12, B10B, B10M, and B12 engines including TD100, TD120, and D12A series. It is also fitted to DAF, Faun, Iveco, Lohr, MAN, Mercedes-Benz, Scania, and Steyr trucks. This part functions effectively within WABCO systems.

Installation and maintenance

For optimal performance, technicians should inspect the M16x1.5 port connections for any signs of air leakage or debris during installation. Regular maintenance of the pneumatic lines ensures that the valve operates without interference from moisture or contaminants. Check the compatibility list to verify fitment for your specific engine configuration.

Troubleshooting and selection

When replacing this unit, ensure that all seals are seated correctly to prevent pressure drops in the trailer brake line. Proper installation is vital for maintaining the integrity of the tractor-trailer pneumatic circuit.

OE cross-reference

303.05.0002 (Trailer Control Valve) is the equivalent of the DAF, Faun, Iveco, Lohr, MAN, Mercedes-Benz, Scania, Steyr, Volvo and WABCO OE numbers. This part directly replaces DAF OE numbers 1504963, 1518264, 1518266, FBU5837. It also replaces Faun OE number 99708410675, Iveco OE number 42091712, Lohr OE number A05020803, MAN OE numbers 81523016118, 81523016119, 81523016120, 81523016121, 82523016007, 85500014328, 91523016118, 99100360007, Mercedes-Benz OE numbers 0014318705, 0024310105, 0034310005, 0034310205, Scania OE number 1935640, Steyr OE numbers 79100360012, 89100360007, Volvo OE numbers 1589765, 1607887, 1607888 and WABCO OE number 9730025210.