The ARCO 5380 Outboard Starter fits Mercury/Marine, 135-200 HP V6, 105 HP Jet, 8-tooth drive gear. It replaces the following part numbers: Mercury 50-44414, Mercury 50-44415, Mercury 50-77141, Mercury 50-79472, Mercury 50-79472-1, Mercury 50-79472T2, Mercury 50-884238T, Mercury 50-893890, Mercury 50-893893, Sierra 18-5608, and Sierra 18-5643. Epoxy powder coated for maximum corrosion protection. Motor shafts induction case hardened at bearing surfaces for superior wear resistance. All armatures tested to withstand 50 times operation voltage (12V). All motors performance tested at 5 different load levels. All motors must meet or exceed OEM performance before being boxed.