- Out of Stock

Converts Link Couplers to Knuckle Couplers, 12 Knuckle Coupler Assemblies PA13CO38. American Flyer Sold Knuckle Couplers as No. 520, 521, 26520 or 26521. Replaces Knuckle Couplers: Has Hole for Knuckle Couplers that are Screwed On, Has Step Down on Shank Sides for Knuckle Coupler Clamps & Split to Convert Link Couplers to Knuckle Couplers.
Data sheet