Engineworx Gasket Kit (Full Set) Yamaha YZ250 99 00 Bike Bike Year Pitch Part Number Jersey size:Youth XLarge Bike Year Pitch Part Number YZ 125 99 01 520 FXRS 31 48 YZ 125 05 20 520 FXRS 31 48 YZ 125 02 04 520 FXRS 31 49 YZ 250 02 05 520 FXRS 31 49 YZ 250 99 01 520 FXRS 31 50 YZ 250 05 20 520 FXRS 31 50 YZF 250 01 04 520 FXRS 31 48 YZF 250 05 11 520 FXRS 31 49 YZF 250 12 20 520 FXRS 31 50 YZF 400 99 520 FXRS 31 48 YZF 426 00 02 520 FXRS 31 48 YZF 450 03 04 520 FXRS 31 48 YZF 450 10 13 520 FXRS 31 48 YZF 450 06 09 520 FXRS 31 49 YZF 450 14 520 FXRS 31 49 YZF 450 05 520 FXRS 31 51 YZF450 15 20 520 FXRS 31 48 WRF 250 07 14 520 FXRS 31 50 WRF 250 01 06 520 FXRS 31 52 WRF 400 99 01 520 FXRS 31 50 WRF 426 00 02 520 FXRS 31 50 WRF 450 03 20 520 FXRS 31 50 RAD SCOOP BLUE Engineworx Full Gasket Kits are the new leader in OEM replacement engine gasket kits Kits include all gaskets and oil seals as shown in the picture