Ordering was easy, replacing the
Ordering was easy, replacing the piston was not, so easy. I had to search online to find a video, which stated that I might have to use a hammer and large pipe wrench to remove the piston. Which was true. The piston will feel struck, and does need to be hit several times to dislodge the rollers. Then a large adjustable pipe wrench was required to free the pitson from the chair seat. Once that was done, the new piston slipped in easily. Folks should not have to search for instructions when ordering directly from the OEM.