Balmar 170A 12V Single Foot K6 Serpentine Alternator

Balmar builds alternator power upgrades specifically for marine applications rather than adapting automotive parts to a boat. High reliability bearings, robust rectifier diodes, and improved heat-sinking go into every unit, which matters on a boat where the alternator runs longer and hotter than a car's ever does.

This model puts out 170 amps at 12 volts, a serious jump over a stock alternator's output for a boat that runs a lot of house loads off the engine while underway. The 1-2 inch single foot spindle mount pairs with a K6 serpentine pulley, a different mounting style than the dual foot saddle version for engines built around a single mounting point.

It's worth confirming which mount style the existing engine bracket uses before ordering, since single foot and dual foot alternators aren't interchangeable without changing the bracket too. Browse more marine alternators.

• 170A output at 12V
• 1-2" single foot spindle mount
• K6 serpentine pulley
• High reliability bearings and improved heat-sinking