DECOMPRESSION VALVE FOR STIHL 026 MS260 036 MS360 044 MS440 046 MS460 066 MS660 713543938326. These decompression valves have heavy duty springs installed. Very nice units .. Condition: New other (see details) : A new, unused item with absolutely no signs of wear. The item may be missing its original packaging, or the original packaging has been opened or is no longer sealed. The item may be a factory second, or a new and unused item with minor defects. See the seller’s listing for full details and description of any imperfections. See all condition definitions , Seller notes: “Heavy duty spring in these valves. Thank you for looking.” .