5.9L FITS DODGE CUMMINS DIESEL TAPERED PISTON RING COMPRESSOR TOOL 4.040

Just slide the piston and rod assembly down into the tapered ring compressor. The taper will create a squeezing of the piston rings  allowing the piston and rod to gradually enter the engine bore.

Will help simplify the piston installation process during engine building.

Each tool will come with size on it.

If you need a custom size please message us we do make them.