8 Inch X 3-3/4 Inch Brake Cylinder Stroke - 40 Mm To Drg. No. Rdso/Sk -81057, Alt-11,Item-2 Position-B. A) The Maximum Stroke Of The Piston At Which The Slack Adjuster Starts Functioning Shall Be Adjusted To 40 Mm. The Working Stroke And Maker'S Logo S Hall Be Embossed On The Body For Easy Identification. Brake Cylinders Shall Conform T O Rdso Str C-K013 (Latest Revision/Amendment). B) Air Inlet Port Should Be 180 Degree Ap Art As Shown In Rdso/Sk-81201. [ Warranty Period: 30 Months After The Date Of Delivery ] ]