Fits STIHL FS420, FS550

PISTON ASSEMBLY

QUALITY Hyway brand AFTERMARKET REPLACEMENT

​O.E.M.# 4116 030 2005

H31551-BOX2

BORE DIAMETER:  46MM

Includes: Piston, Rings, Wrist pin, Circlips

 Ships Usually In 24 Hrs & To You 1 to 7 Days Canada & U.S.A.

NOTE: Overseas Orders Will Be Sent  By Way Of Ocean 4 to 6 Weeks 

Contact Us Before Purchase If You Would Like Air Service 10 Days.

Any saws shown are for display purpose only and are not included.