K4 Supply Company is a supplier of new-old-stock (NOS) and refurbished HO scale model railroad items and parts based in Dayton, Ohio. Our primary sales channel is the K4 Supply Company store on Bonanza (formerly known as Bonanzle). On that site, our user ID is k4_pacific. Many of our items have not been available from conventional hobby suppliers in years. Be sure to check us out regularly to see our ever changing inventory of items you can't find anywhere else.
We specialize in Athearn diesel Parts, Mantua steam locomotive Parts, Rivarossi Parts, and detail parts for superdetailing your models. We also often have freight and passenger cars, buildings and structures, and many other items.
When browsing our listings, be advised that the various model train manufacturers occasionally revise their designs and a part may not work with your locomotive even if it is advertised as fitting your model. We make every effort to cover such variations in our listings to the best of our knowledge, however, we recommend carefully studying the pictures of the items and comparing them to your model. Our listings include large photos of each item for this purpose. All pictures are either of the actual item for sale or of one of the items for sale in case of multiple, identical items. Generally, everything we have available for sale can be found in our Bonanza store. Due to the nature of our business, we cannot source parts on demand. However, on occasion, a particular part will be "in the pipeline" and will be listed soon, so it never hurts to ask.
We also have a selection of electronic components and manuals in our store.
