Keep your boat's electrical system running smoothly with our collection of marine-grade engine alternators. Built to withstand the harsh marine environment, these high-performance alternators provide dependable charging power for your batteries and onboard electronics.
Whether you're replacing a worn-out unit or upgrading for higher output, our alternators are designed for durability, corrosion resistance, and consistent performance under load. Ideal for powering everything from navigation systems to fish finders and lighting, they help ensure you're never left without power on the water.
Shop now and choose from a range of 12V and 24V boat engine alternators compatible with leading marine engine brands—because when you're offshore, reliable power isn't optional, it's essential.
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Vendor:Balmar
Balmar Alternator 250 AMP 12V 3.15" Dual Foot Saddle K6 Pulley [XT-CR-250-K6]
Regular price $1,207.00 USDRegular price$1,350.00 USD-$143.00 USD Sale price $1,207.00 USD -
Vendor:Balmar
Balmar Alternator 170 AMP Kit 12V 3.15" Dual Foot Saddle K6 Pulley Regulator Temp Sensor [XT-CR-170-K6-KIT]
Regular price $1,220.00 USDRegular price$1,365.00 USD-$145.00 USD Sale price $1,220.00 USD -
Vendor:Balmar
Balmar Alternator 170 AMP 12V 3.15" Dual Foot Saddle K6 Pulley [XT-CR-170-K6]
Regular price $984.00 USDRegular price$1,100.00 USD-$116.00 USD Sale price $984.00 USD -
Vendor:Balmar
Balmar Alternator 170 AMP 12V 3.15" Dual Foot Saddle J10 Pulley [XT-CR-170-J10]
Regular price $984.00 USDRegular price$1,100.00 USD-$116.00 USD Sale price $984.00 USD -
Vendor:Balmar
Balmar Offshore Repair Kit AT Series 200AMP 12V Includes Bearings, Brushes, Rectifier [70-AT-200]
Regular price $202.00 USDRegular price$226.00 USD-$24.00 USD Sale price $202.00 USD -
Vendor:Balmar
Balmar Alternator 100 AMP Kit 12V 1-2" Single Foot Spindle Mount J10 Pulley Regulator Temp Sensor [621-VUP-MC-100-J10]
Regular price $925.00 USDRegular price$1,035.00 USD-$110.00 USD Sale price $925.00 USD -
Vendor:Balmar
Balmar Alternator 100 AMP Kit 12V 1-2" Single Foot Spindle Mount Dual Vee Pulley Regulator Temp Sensor [621-VUP-MC-100-DV]
Regular price $925.00 USDRegular price$1,035.00 USD-$110.00 USD Sale price $925.00 USD -
Vendor:Balmar
Balmar Alternator 120 AMP Kit 12V 3.15" Dual Foot Saddle Dual Vee Pulley Regulator Temp Sensor [60-YP-MC-120-DV]
Regular price $1,003.00 USDRegular price$1,122.00 USD-$119.00 USD Sale price $1,003.00 USD -
Vendor:Balmar
Balmar Alternator 120 AMP 12V 1-2" Single Foot Spindle Mount J10 Pulley w/Isolated Ground [621-120-J10]
Regular price $766.00 USDRegular price$857.00 USD-$91.00 USD Sale price $766.00 USD -
Vendor:Balmar
Balmar Alternator 100 AMP 12V 1-2" Single Foot Spindle Mount J10 Pulley w/Isolated Ground [621-100-J10]
Regular price $688.00 USDRegular price$770.00 USD-$82.00 USD Sale price $688.00 USD -
Vendor:Balmar
Balmar Alternator 100 AMP 12V 1-2" Single Foot Spindle Mount Dual Vee Pulley w/Isolated Ground [621-100-DV]
Regular price $688.00 USDRegular price$770.00 USD-$82.00 USD Sale price $688.00 USD -
Vendor:Balmar
Balmar Alternator 100 AMP Kit 12V 3.15" Dual Foot Saddle K6 Pulley Regulator Temp Sensor [60-YP-MC-100-K6]
Regular price $925.00 USDRegular price$1,035.00 USD-$110.00 USD Sale price $925.00 USD -
Vendor:Balmar
Balmar Alternator 100 AMP Kit 12V 3.15" Dual Foot Saddle Dual Pulley Regulator Temp Sensor [60-YP-MC-100-DV]
Regular price $925.00 USDRegular price$1,035.00 USD-$110.00 USD Sale price $925.00 USD -
Vendor:Balmar
Balmar Alternator 150 AMP 12V 4" Dual Foot Saddle K6 Pulley w/Isolated Ground [604-150-K6]
Regular price $904.00 USDRegular price$1,011.00 USD-$107.00 USD Sale price $904.00 USD -
Vendor:Balmar
Balmar Alternator 100 AMP 12V 3.15" Dual Foot Saddle J10 Pulley w/Isolated Ground [60-100-J10]
Regular price $688.00 USDRegular price$770.00 USD-$82.00 USD Sale price $688.00 USD -
Vendor:Balmar
Balmar Alternator 100 AMP 12V 3.15" Dual Foot Saddle Pulley w/Isolated Ground [60-100-DV]
Regular price $688.00 USDRegular price$770.00 USD-$82.00 USD Sale price $688.00 USD