You will be tempted to consider trailer parts wholesale whenever and wherever available. Suppliers often offer bulk rates to not just resellers but also to consumers. Resellers routinely offer discounts and there are certain times in a year when the markdowns are generous. These could be clearance sales or some other times. You can consider trailer parts wholesale from suppliers or resellers. Your choice will depend on the exact price, the compulsion to procure a certain bulk or the lack of it, the kinds of parts and spares you need or a combination of all these factors and more.
Whatever you do and whenever you shop for trailer parts, accessories and spares, you should not buy old products. The manufacturers of trailer parts usually do not upgrade their products every now and then. The industry is not like the consumer electronics segment that undergoes a tectonic shift more than once a year. The trailer parts made five years ago are still relevant today in most cases. However, there is always a steady improvement of the materials that are used by manufacturers, the design and manufacturing processes, the quality or grade of the finished part and the kind of service you can expect from the component.
When you buy considerably old parts and you intend to use them over a period of time, you are beginning with a shortcoming and chances are you will have issues. If you are buying spares, it is imperative to go for brand new parts or accessories since you will be stocking for a while before you actually get to use them. Buying older parts will be detrimental further when you store them and use after a few weeks or the next season. Buying the latest parts is also a way to ensure that you get the most compatible models as possible past imperfections are dealt with by manufacturers in subsequent series.