It's a practical

0" (52mm) Width

Works with the included aluminum front hinge pin brace (black version) to help improve wear/durability of the front hinge pin holes

Upgrade or replace a worn adjuster set with this aluminum part to properly tension your Promoto-MX's chain

Athearn ATH01021 HO Bell with Bracket (3) 32 Pitch It's a practicalAthearn ATH01021 HO Bell with Bracket (3) This Athearn HO scale detail part includes a locomotive bell mounted on its bracket, sold three to a package. It is a genuine Athearn part ideal for detailing or repairing HO scale locomotive models. Scale: HO Type: Bell with mounting bracket Quantity: 3 per package Genuine Athearn detail part