Wabco 9730025390 trailer control valve for air brake systems. A trailer control valve feeds compressed air to the trailer brake system and regulates it, taking its signal from the tractor's service brake circuit and parking brake valve. While the rig is rolling, parking circuit pressure keeps the trailer brakes released; applying the parking brake bleeds that connection and puts the trailer into its braking position. This valve has an exhaust flap, M16 x 1.5 port threads, four M8 mounts on a 3.35 x 3.35 in bolt spacing, and a 116.0 psi maximum operating pressure. A genuine Wabco part from Pro Gear and Transmission. Call us to confirm proper fit.
Features
Trailer control valve with exhaust flap
Port threads M16 x 1.5
Mounting: four M8 on a 3.35 x 3.35 in bolt spacing
Maximum operating pressure 116.0 psi, temperature range -40°C to +80°C
Switch pressure 36.26 psi, predominance 4.35 psi
Supersedes part number(s) S973-002-539-0
Tech Specs
- Brand WABCO
- Part type Premium original quality
- Product category Device
- Calculated Volume (dm³)3.6132
- Distance between bolts3.35x3.35 in
- Exhaust Flap
- Max. operating pressure116.0 psi
- Mounting 4x M8
- Multi Nominal diameter (From Port 1 to x)0.31 / 0.08 in
- Port thread 11M16 x 1.5
- Port thread 12M16 x 1.5
- Port thread 22M16 x 1.5
- Port thread 41M16 x 1.5
- Port thread 42M16 x 1.5
- Port thread 43M16 x 1.5
- Port threads M16 x 1.5
- Predominance 4.35 psi
- Switch pressure 36.26 psi
- Technical specification OE specification
- Temperature range -40°C to +80°C
- Size (mm x mm x mm)164 x 136 x 162
