Pai 3643 Mack 20QE458 Relay Valve
Relay Valve R-12H (2) 1/2in-14 Supply Ports (2) 1/2in-14 Delivery Ports (1) 1/4in-18 Service Port 5.5 psig Cracking Pressure Aluminum This Part Also Available in Excel EM36430.
- Part number: LRV-3643
- OE MFG: MACK
- OEM Reference: 20QE458
- Cross Reference: BENDIX : 065125, 103009, 65125; EUCLID : EBN103009N; HALDEX : KN28140X; IHC : 1677541C91; MACK : 20QE347, 20QE347P1, 20QE458, 745-065125, 745-102537, 745-103009; MERITOR : R955103009N; MIDLAND : KN28140; NAVISTAR : 1677541C91; VELVAC : 034026; OTHER : SM3193, SM-3193 | AUTOMANN : 170.103009, 170.65125; PAI : 3596, EM35960
- Product Class: Air Valves & Kits
The PAI LRV-3643 is an R-12H relay valve associated with Mack reference 20QE458. Relay valves are heavy duty diesel truck parts that use a control signal to regulate compressed air delivery in a vehicle's air-brake system and place airflow closer to the serviced brake circuit. This valve has two 1/2in-14 supply ports, two 1/2in-14 delivery ports, one 1/4in-18 service port, a 5.5 psig cracking pressure, and aluminum construction, providing key details for matching the required configuration. Bendix cross-references 065125 and 103009 are also listed, and Excel EM36430 is noted as an available alternative.
