How to choose which hydraulic seal to use when repairing a hydraulic cylinder if you do not have the right one?

Most hydraulic cylinder rebuild kits will furnish a diagram for correct installation purposes so look this over well before replacing the o-rings and seals in the gland and piston.
All will be slightly different from each other so you will have to identify each new seal and o-ring.
Some of these seals are very thin and may be damaged if not installed evenly.
In some cases, the old seal may be used as an aid to reinstalling the new piece.
Be careful to put these in very evenly or they may be damaged in the process.
Examine each o-ring in each groove and remove and install these one at a time to keep from getting confused as to correct placement.
Clean each groove and seat carefully before replacing it with the new part.
Reverse the process when reassembling the piston to the rod using a thread locking adhesive when replacing the piston rod bolt.
Oil all parts well and use a piece of wood on the rod end if needed when tapping the piston back into the cylinder Do not use a thread locking substance on the gland threads when screwing the gland back into the cylinder.
Replace the hydraulic lines and test for leaks around the new seal.
Follow the same basic procedure for most cylinder types.
Good luck and be careful at all times!
 

And the simple answer is come contact us for the correct one!