This is a Genuine OEM Sourced replacement part designed for use with Ridgid Air Compressor. This part is installed on top of the piston/connecting rod. Its purpose is to create a seal in the cylinder so that it can build pressure. If this part wears your tool will not be able to operate as intended. This item is made out of Metal and it is Sold Individually.
To replace this Piston Ring you would need a Hex Key/Allen Wrench and Pliers.
This is an original part from the Ridgid manufacturer. The plastic gasket is made for several air compressors. This item is secured between the front endbell and the piston rod assembly. The gasket provides a protective seal between the components. A hex key is needed for the repair. This part is sold individually. However, there are three gaskets included in the pump rebuild kit (079027013708) available for purchase.