The Prier C138 Hose Bibb has many repair parts. We only carry the genuine Prier repair parts for the C138. We have the stem and stem packing kit. The part numbers for those are C-134KT-803, and 231-0001. They are genuine Prier replacement parts. The parts are made to fit the C138 hose bibb. Most of the kits to replace parts on this faucet have instructions. For example the stem packing kit has instructions on the package. Therefore it is easy to replace. All of the parts come in a package and come complete.