New OEM inner clutch cover O-ring kit Comes with the following parts Small O-ring 420430408 Large O-ring old part number 420450430 or current part number 420450431 This kit will fit the following machines 2016-2019 Defender HD8 and HD10 2018-2019 Maverick Trail 800R and 1000R 2019 Maverick Sport 1000R