This emergency relay valve is made by PAI for heavy-duty cab and chassis air brake systems, sold individually. It manages air pressure to the spring brake chambers, triggering automatic brake application if trailer air supply drops too low. It fits into the parking and emergency brake circuit of the truck's air system.
Features
Brand: PAI
Part type: Emergency Relay Valve
Part number: 802551
Category: Air Brake Valve
Sold as: Each
Tech Specs
- Part Number: 802551
- Unit of Measure: Each
