Features: 1.Replace Part: According to the original specifications, reference OE number is 13101?ZH8?010, 13010?ZF1?023 to assist you find exactly what you need. 2.Ideal Fitment: The repairing kit is a perfect replacement for GX160 GX200 168F 5.5HP 6.5HP 2?3.5kw 4?Stroke Gasoline Generator Trimmer Engine Motor. 3.High Quality Materials: Manufactured by premium paper, metal and rubber materials with stable performance and high reliability, have a longer service life. 4.Easy to Install: Specially designed according to the original standard for perfect match, you can directly replace the original one to save your time. 5.Stringent Manufacturing: The engine rebuild piston kit is built to OEM specifications, designed to have the same form, fit and function as OEM original. Specification: Item Type: Engine Rebuild Piston Kit Material: Paper + Metal + Rubber OE Number: 13101-ZH8-010, 13010-ZF1-023 Piston Diameter: Approx. 68mm/2.7in Pin Diameter: Approx. 18mm/0.7in Oil Seal Size: Approx. 25mmx41mmx6mm/1.0x1.6x0.2in Fitment: Replacement for GX160 GX200 168F 5.5HP 6.5HP 2-3.5kw 4-Stroke Gasoline Generator Trimmer Engine Motor PackageList: 7 x Gasket 5 x Washer 1 x Oil Seal 1 x Pin 1 x Piston 2 x Ring Note: 1. Please double check the part number of your item, matching information is for reference only. 2. If you are unsure of the item, please contact us before buying to avoid unnecessary return, thanks!