This is a used genuine OEM Echo clutch. It's in overall good condition. It does show some surface rust but is fully functioning. Please be sure to thoroughly look through the pictures of this will be the best description of the item. It came off of an echo CS-400, but it should also fit the CS-370, CS-420, CS-440, and the CS-450. It may fit other models, but you'll have to do your research. I have attached down below some research I did on the internet as far as the different models it goes on. This also fits Shindaiwa models. As always, please be sure to check your part number for proper fitment.

· 402s S/N: C37414001001 - C37414999999-->CLUTCH

· 402s S/N: C37513001001 - C37513999999-->CLUTCH

· 402s S/N: C69915001001 - C69915999999-->CLUTCH

· CS-370 S/N: C33514001001 - C33514999999-->Clutch

· CS-370 S/N: C33714001001 - C33714999999-->Clutch

· CS-370 S/N: C69515001001 - C69515999999-->Clutch

· CS-370F S/N: C27611001001 - C27611999999-->Clutch

· CS-370F S/N: C27713001001 - C27713999999-->Clutch

· CS-370F S/N: C33614001001 - C33614999999-->Clutch

· CS-370F S/N: C69615001001 - C69615999999-->Clutch

· CS-400 S/N: C10013001001 - C10013999999-->Clutch

· CS-400 S/N: C08111019801 - C08111999999-->Clutch

· CS-400 S/N: C33714001001 - C33714999999-->Clutch

· CS-400 S/N: C69715001001 - C69715999999-->Clutch

· CS-400F S/N: C33814001001 - C33814999999-->Clutch

· CS-400F S/N: C69815001001 - C69815999999-->Clutch

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