Poulan Compression Spring part# 035047 supersedes to part# 530-035047. This spring is used under the metering lever of the fuel intake valve inside the carburetor on Poulan's MicroXXV chainsaw. This part is listed as "No Longer Available". There may be models that use this part that we do not have listed here. Please refer to your owners manual or a parts breakdown for your model, to assure that this is the correct part for your machine, before you order.