Spring Brake Valve (1) 1/4in-18 Trailer Supply Port (4) 3/8in-18 Delivery Ports (2) 1/4in-18 Reservoir Ports (1) 3/4in-14 Reservoir Port (1) 3/8in-18 Exhaust Port Part number: EM56710 OE MFG: MACK OEM Reference: 745-287376 Cross Reference: OTHER : 745-287376 Product Class: Air Valves & Kits The PAI EM56710 is a spring brake valve identified with Mack OEM reference 745-287376. As heavy duty diesel truck parts, spring brake valves manage compressed-air routing within a vehicle's spring brake system, directing supply, delivery, reservoir, and exhaust circuits as part of normal brake control. Its listed configuration includes one 1/4in-18 trailer supply port, four 3/8in-18 delivery ports, two 1/4in-18 reservoir ports, one 3/4in-14 reservoir port, and one 3/8in-18 exhaust port, providing key connection details for matching the valve to the required air plumbing.
