Excel EM37040 Mack 745-288323 Pressure Protection Valve

Pressure Protection Valve 70 psig Closing Pressure 3.81in Length (1) 1/4in Delivery Port (1) 1/4in Supply Port Mack PR-4 Series Application

• Part number: EM37040
• OE MFG: MACK
• OEM Reference: 745-288323
• Cross Reference: OTHER : 170.288323, 745-288323, SM-6918, S-28236, S28236
• Product Class: Air Valves & Kits

The PAI EM37040 is a pressure protection valve for the Mack PR-4 Series application, with a 70 psig closing pressure, 3.81-inch length, one 1/4-inch delivery port, and one 1/4-inch supply port. In heavy duty diesel truck parts, a pressure protection valve serves the air system by closing at a specified pressure threshold to protect pressure in designated circuits. Mack reference 745-288323 identifies this valve; related numbers 170.288323 and SM-6918 support part-number comparison.