Harbor Freight Predator Lifan Rato Loncin 270CC 9HP Gas Engine Piston Ring Set
You will need it for any warranty service. Thickness of 2nd Wiper Ring: 2.0MM or 5/64 IN. Thickness of 2nd Wiper Ring: 1.2MM or 3/64 IN. Thickness of 3rd Oil Ring: 2.5MM or 3/32 IN. Thickness of 1st Compression Ring: 2.0MM or 5/64 IN.