World American WA110415 Service Relay Valve – 4 PSI, 4 Delivery Ports WIF Sensor 500 lbs Load Rating at

500 lbs Load Rating at 80 PSI 5

05-20529-000

engineered for the high-flow

Napa: 6930

and DT530E HEUI engines from 1993 to 2003

World American WA110415 Service Relay Valve – 4 PSI, 4 Delivery Ports WIF Sensor 500 lbs Load Rating atQuality replacement service relay valve for trailer air brake systems. The World American WA110415 is a Sealco pattern piston type relay valve with a 4. 0 PSI nominal crack pressure, one 3 4 in NPT reservoir supply port, one 3 8 in NPT control port and four 3 8 in NPT delivery ports. It threads directly onto the reservoir and replaces Sealco 110415 and Haldex 110415X. Signs You Need a New Relay Valve Slow brake application or slow release on the axle