WABCO Park Release Emergency Valve 9710029000 Trailer Parking Emergency Brake Valve for Semi Trailer EBS Brake System

The WABCO WABCO Park Release Emergency Valve (part number 9710029000) is a replacement component for the air brake and air suspension systems of heavy-duty trucks, buses and semi-trailers. It is built to original equipment specification from quality materials, so it installs on the original mounting points and performs reliably throughout the service life of the vehicle. Key ratings include Max Working Pressure 10 bar, temperature range -40°C ~ +65°C.

The valve combines emergency braking and parking release in one compact unit, applying the trailer brakes automatically if the trailer is separated from the tractor. Manual red and black buttons give the driver direct control, and the integrated design simplifies the trailer pneumatic circuit while adding an important layer of safety.

Every unit is manufactured to original equipment specification and inspected before it leaves the factory, so it matches the fit, function and durability of the original part. Sealed, vibration-tested construction keeps performance stable in the heat, dust, road salt and constant vibration found on commercial vehicles, and standard interfaces make installation and maintenance straightforward. Spare parts, technical data and fitting advice are available on request.

• Max Working pressure:10 Bar: Temperature range -40°C ~ +65°C.
• Port Thread M16*1.5: Weight 1.57kg, with mounting plate.
• Integrated Emergency Valve & Parking Release Function: Red and black manual buttons for brake control.
• OE Original Quality: Simplifies trailer pneumatic circuit, stable performance for semi-trailer EBS system.
• OE Grade Quality: Manufactured to original equipment specification for the correct fit, function and durability.

The valve is used on the EBS brake systems of semi-trailers, including container chassis, curtainsiders, tippers and tankers. It is a key safety component that couples parking release with automatic emergency braking when the trailer is separated from the tractor.

Every unit is packed in a neutral export carton with foam protection so that ports, connectors and levers arrive free from damage. OEM cartons and private labels are available on request, and each carton is labelled with the part number for simple warehouse handling. All units are produced to original equipment specification and inspected before shipment; a twelve-month quality warranty and full technical support are provided, and mixed containers can be supplied for distributors and repair workshops. Please contact us for samples, volume discount pricing and confirmed lead times.