in the installation of piston 14 piston chamfer 26 is included piston chamfer 26 is an angular chamfer located near piston centering surface 20 the angular chamfer is incorporated to assist in installing piston 14 about plunger tube 12 multiple plunger assemblies 10 with plunger tubes 12 of varying diameters can be incorporated into a telescopic hydraulic cylinder 30 as shown in fig3 fig3 demonstrates the exterior of telescopic hydraulic cylinder 30 when extended plunger assembly 10 is located in cylinder 32 plunger assemblies of smaller diameters not shown are located in cylinders 34 fig4 demonstrates extended telescopic hydraulic cylinder 30 in use with dump body 36 to extend telescopic hydraulic cylinder 30 oil is introduced in to cylinder 32 hydraulic pressure is built up and pushes against piston end 38 shown in fig1 the hydraulic pressure pushes against this surface when extending each plunger when closed each plunger assembly 10 rests on piston end 38 piston stop 40 receives piston end 38 of the succeeding plunger when closed each succeeding plunger assembly 10 will rest against piston stop 40 in a telescopic hydraulic cylinder with multiple plunger assemblies plunger tube 12 includes plunger oil hole 42 plunger oil hole 42 allows oil to pass from plunger to plunger for normal cylinder operation once plunger tube assembly 10 is fully extended oil not shown passes through plunger oil hole 42 to reach the next plunger assembly not shown hydraulic pressure then pushes on the piston end not shown of the succeeding plunger extending the succeeding plunger wear guide groove 44 is also included in the preferred embodiment a non metallic.