Coupler Knuckle is the control part of coupler lock and uncouple.

AAR Knuckle E50AE is designed for E coupler, E/F coupler assembly. The E50AE Knuckle adopt E grade steel, complying with AAR standards for railway freight cars products.

Railteco Knuckle E50AE is interchangeable with the couplers parts manufactured in North America.

Railteco could also provide Knuckles or coupler parts for other AAR couplers, Chinese couplers and etc.