A-190859M1 Cylinder, Rockshaft Weight: 18.85 lbs AS PER A CHANGE BY THE OEM THIS CYLINDER HAS 1/2" FINE THREADED HOLES. IF REPLACING EARLIER CYLINDER COVER MUST BE RE-DRILLED AND STUDS CHANGED. Pricing and ordering information can not be shown until a dealer has been selected. Enter your zip (or postal) code and continue. Zip/Postal Code: