Oil Seal Kit for 70cc 90cc 110cc 125cc ATVs Dirt Bikes Go Karts Quad 4 Wheeler Pit Bike Oil Seal Kit. Top Quality Guaranteed. Oil Seal Kit for 70-125cc ATVs, Dirt Bikes, Go Karts Part1: Inside Diameter:18.9mm, Outside Diameter:30mm,thickness: 5mm; Part2: Inside Diameter:17mm, Outside Diameter:29mm,thickness:5mm; Part3: Inside Diameter:11.8mm, Outside Diameter:24mm, thickness 10mm; Part4: Inside Diameter:13.7mm, Outside Diameter:24mm, thickness: 5mm; Part5: Inside Diameter:12mm, Outside Diameter:21mm, thickness:4mm; ; Please check the pictures and specifications for compatibility before placing orders