Service Relay Valve 2 Port(2) 3/8-18 Delivery Ports (1) 3/8-18 Service Control Port (1) 3/8-18 Service Control Port w/Plug (1) 1/2-14 Reservoir 4 psig Cracking Pressure Aluminum
- Part number: 802549
- OE MFG: SEALCO AIR CONTROLS, INC.
- OEM Reference: 110197
- Cross Reference: MACK : 7546-110197; OTHER : 110197, 551 10 197, S-17737 | PAI : 802549E
- Product Class: Air Valves & Kits
The PAI 802549 is a Sealco service relay valve with two delivery ports, two service-control ports, and a reservoir connection. As heavy duty diesel truck parts, service relay valves use control signals to regulate compressed air delivery within a vehicle air-brake system, supporting responsive brake application through the normal relay-valve function. This valve is specified with two 3/8-18 delivery ports, one 3/8-18 service-control port, one 3/8-18 service-control port with plug, a 1/2-14 reservoir port, 4 psig cracking pressure, and an aluminum construction. Sealco lists 110197 as the OEM reference, with Mack 7546-110197 as a selected cross-reference.








