This is a Genuine Meyer OE 15953 Cylinder Tube 1-3/4" Bore X 6"
The E60 had 3 Cylinder options so please verify you are ordering the correct part.
This is the 6" Heavy Duty cylinder measuring 6" x 1-3/4"
The original one was 1-1/8" part number 15694. This is for the regular height pumps NOT the E60H series, The E60H series pumps are 2" taller than the standard they are used on Diamond plows, Meyer MDII and Plus mounts if you have this you will need 15205.
They also offer this in an upgrade kit 08839giving you the rest of the pieces to do the update.
The inside diameter is 1-3/4" and the length is 7-1/16"