The Subaru / Robin 293-23511-07 Ring Set Assembly EH100 is a replacement component designed for compatible Subaru / Robin EH100 engines. This ring set assembly helps support proper engine operation and reliable performance by maintaining proper compression between the piston and cylinder. Replacing a worn or damaged ring set can help maintain smooth engine operation and dependable per... https://www.wholetoolbox.com/subaru-robin-293-23511-07-ring-set-assembly-eh100/293-23511-07.html