Impeller, 128990-42200, old # X08810B COVER O-RING, X02173476, old # X0506597, early models used X0506523 SLINGER O-RING, X02173432, old # X0506513 RETAINING RING, X00370012, old # X0534501 RETAINING RING, X00371732, old # X0534511 SPACER PLATE, X0145050 BEARING, X03431760, old # X0508124 BEARING, X03431748, old # X0508130 SS SCREWS, X0504163 Replaces 128377-42520 LIP SEAL, X02233010, old # X0529139 END COVER, X0142398 Impeller Specifications: Diameter: 50.8mm (2") Width: 22mm (0.87") Shaft: 12mm (0.47") Pin Drive 6 Blades All YM and some GM series engines 2YM15 2004 & up 3YM20 2004 & up 3YM27A 2004 & up 3YM30 2004 & up 3YM30R 2004 & up Fits all 2GM20/3GM30 YEU series. The GM YEU series are European-built models from 1997-2004 and have the letter "E" prefixing the engine serial number (for example serial no. E00123) All models below. 2GM20-YEU, 1997 and later 2GM20C-YEU, 1997 and later 2GM20F-YEU, 1997 and later 2GM20FC-YE, 1997 and later 3GM30-YEU, 1997 and later 3GM30C-YEU, 1997 and later 3GM30F-YEU, 1997 and later 3GM30FC-YEU, 1997 and later