World American WA110415 Service Relay Valve – 4 PSI, 4 Delivery Ports WIF Sensor This filter element replaces or

This filter element replaces or is equivalent to the following part numbers:

05-20529-000

MSMDKN28510X

Direct replacement for OEM Kenworth K303-16 and Goodyear 1R11-242

World American WA110415 Service Relay Valve – 4 PSI, 4 Delivery Ports WIF Sensor This filter element replaces orQuality 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