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 1-2" Single Foot Dual V Pulley Regulator Temp Sensor - 170A Kit - 12V [XT-SF-170-DV-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 3.15" Dual Foot Saddle K6 Serpentine Pulley Regulator Temp Sensor - 170A Kit - 12V [XT-DF-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 3.15" Dual Foot Saddle K6 Serpentine Pulley - 170A - 12V [XT-DF-170-K6]
Regular price $984.00 USDRegular price$1,100.00 USD-$116.00 USD Sale price $984.00 USD -
Vendor:Balmar
Balmar Alternator 3.15" Dual Foot Saddle J10 Serpentine Pulley Regulator Temp Sensor - 170A Kit - 12V [XT-DF-170-J10-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 3.15" Dual Foot Saddle Dual V Pulley Regulator Temp Sensor - 170A Kit - 12V [XT-DF-170-DV-KIT]
Regular price $1,220.00 USDRegular price$1,365.00 USD-$145.00 USD Sale price $1,220.00 USD -
Vendor:Balmar
Balmar Belt Buddy w/o Adjustment Arm [BBU]
Regular price $50.99 USDRegular price$55.99 USD-$5.00 USD Sale price $50.99 USD -
Vendor:Balmar
Balmar Digital Duo Charge - 12/24V [DDC-12/24]
Regular price $232.00 USDRegular price$259.00 USD-$27.00 USD Sale price $232.00 USD -
Vendor:Balmar
Balmar ARS Multi-Stage Regulator w/Harness - 12V [ARS-5-H]
Regular price $264.00 USDRegular price$295.00 USD-$31.00 USD Sale price $264.00 USD -
Vendor:Balmar
Balmar Alternator Protection Module - 48V [APM-48]
Regular price $134.00 USDRegular price$149.00 USD-$15.00 USD Sale price $134.00 USD -
Vendor:ARCO Marine
ARCO Marine Zeus A8000-48V 8kW N62 Alternator w/Clutch Pulley [4604]
Regular price $1,978.90 USDRegular price$2,308.90 USD-$330.00 USD Sale price $1,978.90 USD -
Vendor:ARCO Marine
ARCO Marine Zeus 24V 7kW 3.15 Alternator w/Isolated Ground (Common Rail) [4502]
Regular price $1,427.80 USDRegular price$1,648.90 USD-$221.10 USD Sale price $1,427.80 USD -
Vendor:ARCO Marine
ARCO Marine Zeus 24V 4kW Low Turn On (LTO) J180 4" Alternator w/Isolated Ground [4403]
Regular price $1,427.80 USDRegular price$1,648.90 USD-$221.10 USD Sale price $1,427.80 USD -
Vendor:ARCO Marine
ARCO Marine Zeus 24V 4kW Low Turn On (LTO) 3.15 Alternator w/Isolated Ground (Common Rail) [4402]
Regular price $1,427.80 USDRegular price$1,648.90 USD-$221.10 USD Sale price $1,427.80 USD -
Vendor:ARCO Marine
ARCO Marine Zeus A225S Vortec Alternator w/Regulator [4018]
Regular price $877.80 USDRegular price$999.90 USD-$122.10 USD Sale price $877.80 USD -
Vendor:ARCO Marine
ARCO Marine Zeus A275L Vortec Alternator w/Regulator [4034]
Regular price $1,096.70 USDRegular price$1,249.60 USD-$152.90 USD Sale price $1,096.70 USD -
Vendor:ARCO Marine
ARCO Marine Zeus A275L Vortec Alternator w/Terminal Block [4033]
Regular price $986.70 USDRegular price$1,124.20 USD-$137.50 USD Sale price $986.70 USD