Our Standard Category 1 Hydraulic Top Link 20" Retracted to 28" fully extended. 2" Bore with 1.25" Chrome Plated Ram, swivel balls on each end for 3/4" mounting pins and dual SAE-8 ports that are easily adapted to 1/2" or 3/8" NPT. Compatible with most Cat 1 Tractors form 25hp - 55hp. NOTE: THE TOP LINK HOSE KITS WE HAVE LISTED ON AMAZON WILL NOT FIT THIS TOP LINK