Starter - Arco
9 Tooth drive gear
Yamaha
40hp 1984-88
50hp 1984-88
PRO50 1987-88
For replacement Starter drive use DV525 and For replacement Brush Holder use SR425
May fit additional models to those listed above. Although your model may be listed above we always suggest that you compare the oem number of the part for your engine to those listed below
Replaces: 6H4-81800-12-00, 6H4-81800-11-00, 6H4-81800-10-00, 18-6422, MOT5012N