This part is no longer available from Yamaha. It has been discontinued. This part is used to cover the decompression valve. It fits the following models: 1976 Yamaha IT400C, 1977 Yamaha DT400D, 1978 Yamaha DT400E. This part is a new reproduction of the original. The originals have deteriorated with time, as they are 50+ years old. This is the second version. If you are looking for the early version, used on other models, see my other listing. The part number is used for reference purposes only, and no source of manufacture or supply is implied. The price includes  sales tax. If you want additional insurance coverage, contact me before ordering. If you do not purchase insurance, I am not responsible for mis-delivered packages, lost packages, or shipping damage.