R-5 Relay Valve (Opens at 4.6 psi) Horizontal Delivery Ports (2)3/8-18 NPT Reservoir Ports (2)1/2-14 NPT Control Ports (1)3/8-18 NPT
- Part number: LRV-3639
- OE MFG: MACK
- OEM Reference: 5396-KN28060
- Cross Reference: MACK : 5396-KN28060, 745-229467; NAVISTAR : 455975C92; OTHER : 229467, 286844, KN28060
- Product Class: Air Valves & Kits
The PAI LRV-3639 R-5 relay valve is identified with MACK OEM reference 5396-KN28060 and cross-references MACK 745-229467 and NAVISTAR 455975C92. This component is among heavy duty diesel truck parts used in air brake systems, where a relay valve controls the delivery of reservoir air in response to a control signal. Supplied configuration details include a 4.6 psi opening point, two horizontal 3/8-18 NPT delivery ports, two 1/2-14 NPT reservoir ports, and one 3/8-18 NPT control port, providing key points for matching the valve to the intended air-line connections.
