Home Engine Systems Engine Parts Starters Mercury 90-175 HP Inline, 150 HP V6 Starter Drive Gear (DV377) ARCO Mercury 90-175 HP Inline, 150 HP V6 Starter Drive Gear (DV377) $28.09 Mercury 90-175 HP Inline, 150 HP V6 Starter Drive Gear (DV377) quantity Add to cart Product Details Product Details Fits: 90-175 HP Inline, 150 HP V6. 10 tooth drive gear. Replaces: 50-57465A1, 50-72467, 50-58788A3.