Pai 4020 Mack 59QE124 Hose Coupler

Hose Coupler Aluminum w/ Steel Rubber Inserts 1/2-14 Port Emergency/Red

• Part number: MGH-4020
• OE MFG: MACK
• OEM Reference: 59QE124
• Cross Reference: MACK : 5396-11451, 59QE124, 745-278524; OTHER : 1011EPAI, 11451, 278524, 36201, 441016, 9212
• Product Class: Gladhands

The PAI MGH-4020 is a hose coupler listed with aluminum construction, steel rubber inserts, a 1/2-14 port, and an emergency/red configuration. Hose couplers are heavy duty diesel truck parts that connect air lines and maintain an air passage in trailer braking or related pneumatic systems; the stated port and configuration details distinguish this component. MACK reference 59QE124 identifies the OEM part, with 5396-11451 and 745-278524 supplied as additional MACK cross-references.