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 95 Series Alternator Pully, Altmount [48-AM-39]
Regular price $108.00 USDRegular price$121.00 USD-$13.00 USD Sale price $108.00 USD -
Vendor:Balmar
Balmar Pulley Kit Yanmar f/3YM30 [48-YSP-3YM-B]
Regular price $643.50 USDRegular price$0.00 USDSale price $643.50 USD -
Vendor:Balmar
Balmar Pulley Kit f/Volvo D2-55, A, B, C, D, E, F [48-VSP-D2-A]
Regular price $643.50 USDRegular price$0.00 USDSale price $643.50 USD -
Vendor:Balmar
Balmar Pulley Kit f/Yanmar 6LY, 6LYA-STP, 6LY2-STP [48-YSP-6LY-A]
Regular price $799.00 USDRegular price$0.00 USDSale price $799.00 USD -
Vendor:Balmar
Balmar Pulley Kit f/Yanmar 3JH5, 3JH4-E, 4JH4-E, 4JH5, 4JH5-E [48-YSP-3JH-A]
Regular price $643.50 USDRegular price$0.00 USDSale price $643.50 USD -
Vendor:Balmar
Balmar Pulley Kit f/Yanmar 2GM20-F, 3GM30-F, 3GM-F [48-YSP-3GM-B]
Regular price $643.50 USDRegular price$0.00 USDSale price $643.50 USD -
Vendor:Balmar
Balmar Pulley Kit f/Yanmar 4JH3-TE, 4JH3-HTE [48-YSP-4JH-D]
Regular price $643.50 USDRegular price$0.00 USDSale price $643.50 USD -
Vendor:Balmar
Balmar Lehman Serp Pulley Kit [48-FSP-100]
Regular price $799.00 USDRegular price$0.00 USDSale price $799.00 USD -
Vendor:Balmar
Barlmar Pulley Kit f/Yanmar 4LH-A [48-YSP-4LH-A]
Regular price $643.50 USDRegular price$0.00 USDSale price $643.50 USD -
Vendor:Balmar
Balmar Pulley Kit f/Yanmar 3JH2-TE, 3JH2-E [48-YSP-3JH-C]
Regular price $643.50 USDRegular price$0.00 USDSale price $643.50 USD -
Vendor:Balmar
Balmar Yanmar Pulley Kit f/4JH, 4JHE, -TE, -HTE, -DTE [48-YSP-4JH-F]
Regular price $643.50 USDRegular price$0.00 USDSale price $643.50 USD -
Vendor:ARCO Marine
ARCO Marine Premium Replacement Alternator w/Multi-Groove Serpentine Pulley - 12V 65A [60060]
Regular price $241.95 USDRegular price$300.42 USD-$58.47 USD Sale price $241.95 USD -
Vendor:Balmar
Balmar Alternator 170 AMP 12V 4" Dual Foot Saddle K6 Pulley [XT-DF4-170-K6]
Regular price $984.00 USDRegular price$1,100.00 USD-$116.00 USD Sale price $984.00 USD -
Vendor:Balmar
Balmar Alternator 250 AMP Kit 12V 3.15" Dual Foot Saddle Dual Vee Pulley Regulator Temp Sensor [XT-DF-250-DV-KIT]
Regular price $1,444.00 USDRegular price$1,615.00 USD-$171.00 USD Sale price $1,444.00 USD -
Vendor:Balmar
Balmar Alternator 250 AMP 12V 3.15" Dual Foot Saddle Dual Vee Pulley [XT-DF-250-DV]
Regular price $1,207.00 USDRegular price$1,350.00 USD-$143.00 USD Sale price $1,207.00 USD -
Vendor:Balmar
Balmar Alternator 250 AMP Kit 12V 3.15" Dual Foot Saddle K6 Pulley Regulator Temp Sensor [XT-CR-250-K6-KIT]
Regular price $1,444.00 USDRegular price$1,615.00 USD-$171.00 USD Sale price $1,444.00 USD