34mmCylinder Piston Kit for Stihl FS75 FS80 FS85 FC75 FC85 FH75 FR85 HL75 HL75K HT70 HT75 KA85 KR85 KW85 SP81 SP85 Trimmer 4137 020 1202

The unit I installed this cylinder/piston on was a BG75 blower.....which the product info states it will fit. It fits....but. The four screws that held the previous cylinder in place were self-tapping, course thread metric screws. The new cylinder comes pre-threaded with a metric M5 thread. Fortunately, I'm a retired Stihl dealer and had the screws readily available.....but it took me a while to find the right ones because all the parts breakdowns (for several of the models listed in the product info) show the self-tapping screw not the machine thread. I finally found the right screw and it's a Torx Head Screw M5x23. The Stihl part number is 9022 313 1030. I hope this helps someone save about an hours worth of looking. Overall, the quality of the cylinder and piston seem very good.

Just installed it to replace a wrung out piston and cylinder on a Stihl HT75. Good compression and started right up. I work that pole saw pretty hard. It will be interesting to see how long it will last. I wish they would have included a wrist pin needle bearing with it. Those things are awful hard to find.

Did not get the entire package

Snap rings were not as good as original style.

Perfect fit and works perfectly thank you.