Includes (1) 900994004 GasketNew, Bulk PackedGenuine OEM Replacement Part # 900994004Consult owners manual for proper part number identification and proper installationPlease refer to list for compatibilityCompatible with the following: Ryobi: RY29550, CS30, CS30, RY30000B, SS30, SS30, RY30002B, BC30, BC30, RY30004B, RY30004D, CS30, SS30, BC30, RY30120, RY30140, BC30, RY30220, RY30220A, RY30220B, RY30240, RY30240B, RY30260, RY30260B, RY30524, RY30530 and, RY30544, RY30550 and, RY30564, RY30570 and, RY30931 30 cc and, RY30951 and, RY30971 and, RY52001, RY52001A, RY52003, RY52003A, RY52014 TP30, RY52502, RY52504, RY52903, RY52905, RY70101, RY70101A, RY70103, RY70103A, RY70105, RY70105A, RY70107, RY70107A, RY70111, RY70113 Curved Split Shaft, Homelite: B25C, B25C, B25C, B25S, UT15198, BC3000, BC900, BC900, C1200, C300, C300, UT-70026, UT20696, D725CD, D725CD, D725CD, UT20695, UT20713, D725CDE, UT20711, D825CA, UT20705, UT15152, UT15160, UT15165, UT15170, UT20700, UT20701, UT20709, D825SD, D825SD, D825SD, UT-20680, UT-20680-A, UT-20703: UT-20704, UT-20715, UT-20724, UT-20730, UT-20737, UT-20738, UT-20749, UT-20758, UT-20769, UT-20769-A, UT-20785, UT-20699, UT-20678, UT-20678-A, UT-20688, UT-20688-A, UT-20688-B, UT-20693: UT-20780, UT-20712 Expand-It, UT-20710 Expand-it Plus, UT-20681 Expand-it, UT-20681-A Expand-it, UT-20735 Expand-it, UT-20778 EZ Reach, F2020, F2020, F2040, F3040, F3050, GST, UT-20593-A GST, GST18, GST18, UT15084B GSTBC, UT15084C GSTBC, HBC18, HBC18, HBC18, HBC18, HBC28, HBC28, HBC30Str