These were custom made, thus more expensive than my other sizes which were old stock

These are available in 4 different sizes.

The size is marked on the top of the piston and top of the cylinder block.

If there are no markings, then it is 5022-000 (which is 3.000").

You can also measure the diameter of the outside of the piston.

There needs to be .007" ± .001 between the piston and cylinder wall.

I sell every part new and used for the Frazer Rototiller.

If you don't see it on ebay contact me.