Threaded plug and crush washer to plug the decomp or compression relief valve. 503 55 22-01 NEW old stock from closed out dealer. Fits many models of chainsaw, and chop saw. Husqvarna, Partner, Stihl, Jonsered, Efco, Dolmar
Part: decompression valve Condition: good used/working shape Fits: Husqvarna K371 cut off saw