Lionel Plastic Knuckle Coupler Featuring Built-In Spring Mechanism (Model 6802731056)

Description

Lionel 2731-56 Plastic Knuckle Coupler with Built in Spring

These Knuckles require rivet TC23 to install. Plastic spring is built in just like the postwar type. Replaces knuckles 6009050056 and 6109050056..

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