Attributes . Cylinder Looks The Same In Between But With Different Sizes. *Aluminum Housing With Steel Sleeve. OEM # 420-6136-20 / 420-6136-25,420-6136-27 / 420-6136-28,420-9234-35 / 420-9234-37,420-9234-39. Bore Size:76mm,. Sleeve O.d.83mm,. height:130.8/113mm. Aluminum Housing W/steel Sleeve . Names