Cylinder Gasket for Ape 50 100 Deluxe Special Type D Models AC16-140-160/HC07-130-160/HC13-100. Thickness is about 0.5mm. Aftermarket. We use sheets made by Japan Balcar Industrial and are certified by professional shops. Fits Manufacturer Part Number: 12191-KN4-751 (Old Model Number: 12191-KN4-750). The color of the material may change without prior notice, but the performance of the product does not change.