Enhance your HO scale passenger cars with this Kadee/AHM/Rivarossi 4 - wheel passenger truck bolster set. Each set includes a pair of bolsters that allow you to attach truck - mounted couplers to your passenger cars. With truck - mounted couplers, you can achieve closer coupling on radii down to 18' without binding for most passenger cars. For use with Kadee Magne - Matic Couplers, it's recommended to use non - magnetic trucks. You'll need to change the wheels on AHM and Athearn trucks to Kadee #521 or #522 non - magnetic wheels. Each kit comes with a pair of Draft Gear Boxes, one pair of NO.5 Couplers, #634 Centering Springs, screws, special bolsters, and clear instructions.

Using this product is easy. First, gather all the parts from the kit, which includes a pair of bolsters, Draft Gear Boxes, NO.5 Couplers, Centering Springs, screws, and instructions. Attach the truck - mounted couplers to your passenger cars using the provided bolsters. Make sure to use non - magnetic trucks when using Kadee Magne - Matic Couplers. For AHM and Athearn trucks, change the wheels to Kadee #521 or #522 non - magnetic wheels. When installing, follow the instructions carefully. As for maintenance, keep the parts clean and free from dust. Check the screws and springs regularly to ensure they are tight and in good condition. If you notice any signs of wear or damage, replace the parts promptly.