2003 Quest 50 / DS 50 2-strokes Parts Catalog, Page 12Get this manual
166A-04 OIL PUMP 166A-04 POMPE L'HUILE 10 11 12 13 A15150104000 A945111900S A96300030118 A1510011600B A9350005015 A15151104000 A944000408490 A17502101000 A15136110000 A91319110000 A9650009164 A9451008000 A944020911400 Pump Drive Gear External Circlip (STW-19) Crankshaft Pin (3 11.8) Oil Pump Ass'y Pan Head Phillips Bolt M5 15 Wave Washer (19.2 26 0.3) Oil Tube Oil Filter Cup Oil Pump Wormwheel (40T) Oil Ring Oil Seal Clip Tube Cover