Pai 4233 Mack 20QE39311 Air Control Switch

Air Control Switch | Two Position Switch | All Ports 1/8-27 NPT | Length 1.72in Includes Lock Nut (1)M12 x 0.8 Hex Nut (1)M12 x 0.8 Self-Locking External Retaining Ring (1)

• Part number: MAS-4233
• OE MFG: MACK
• OEM Reference: 20QE39311
• Cross Reference: MACK : 20QE39311, 4379-RD538270
• Product Class: Miscellaneous Controls

The PAI MAS-4233 is an Air Control Switch identified as a two-position switch for pneumatic control systems. Air control switches route or interrupt compressed air between circuit states, making this component relevant to heavy duty diesel truck parts used in air-operated vehicle systems. Supplied details include 1/8-27 NPT ports on all connections and a 1.72-inch length, with a lock nut, M12 x 0.8 hex nut, and M12 x 0.8 self-locking external retaining ring. The MACK OEM reference is 20QE39311, with MACK 4379-RD538270 as an additional cross-reference.