ARCO NEW Original Equipment Quality Replacement Outboard Starter Fits: Mercury 1956-1957, 25-30 HP, 1957 55 HP, 1958 30-55 HP, 1959 35 & 55 HP, Large 10-tooth drive gear. Replaces Part Numbers: Mercury 50-29105 Mercury 50-30842 Mercury 50-32403 Mercury 50-32411
