Please keep in mind when creating a search, some parts are listed only by part number, some are listed only by description (D8K radiator, Deere 4220 engine, JD 4220 engine), and some are listed by part number and by description. .
If you have the part numbers, it is the fastest and most accurate way to find the parts you need. Some parts may have more than one number assigned to them by the original manufacturer. The listed parts dealer may have entered them using any of these numbers. Tractor-Part has created a database that associates many of these numbers, so that a search using one number may turn-up parts with alternate numbers for that part. It is the same with models, many parts fit multiple models, and a search may show different models than you entered. If a part number or description result is different than your search request, always confirm with the dealer that the part he has is a direct replacement for the part you need.
Searching by description requires a little bit of imagination. Many dealers submit their inventory to TRACTOR-PART using their own descriptions and abbreviations, so you may have to reword your search several times to find results for the part you are wanting.