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Alternators & Regulators for Marine Engines

Marine Alternators

A bad alternator is real drain on your battery and your boating adventures. Find the right replacement alternator for your boat engine to get you charged up and ready for the water. Select from Balmar, API, Arco Marine, Quicksilver by Mercury and Sierra.

78 Products

$228.90
SHIPS FREE
ONLINE ONLY
Alternator Marine Power, 12 Volt, 85 Amp, Double V-Groove Pulley, 471200, 471201 & 4711210
SKU: 12620
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Mfr: STERNDRIVE ENGINEERING
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Mfg# 20118
$249.90
SHIPS FREE
ONLINE ONLY
Alternator Universal & PCM Engine, 12 Volt, 55 Amp, V-Groove Pulley, 2" Foot, Repl. 288182, 288759
SKU: 12580
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Mfr: STERNDRIVE ENGINEERING
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Mfg# 20111
$249.90
SHIPS FREE
ONLINE ONLY
Alternator, Mercury Verado, 12 Volt, 85 Amp, 6-Groove 50mm Serpentine Pulley, Merc #892940
SKU: 13612
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Mfr: STERNDRIVE ENGINEERING
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Mfg# 20115
$283.49
ONLINE ONLY
Alt Mercury 3.0L O/B, SAEJ1171, 12V 50 Amp Serp. Pulley Merc #881247A1, 875286A1, 889956 & 8M0066
SKU: 13700
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Mfr: STERNDRIVE ENGINEERING
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Mfg# 20117OE
From: $1,151.61
621-Series Alt/Reg Kit, Single Foot, J10 Pulley, MC Regulator
Mfr: Balmar
$3,327.04
98-Series Alternator, Extra Large Case, 12 Volt, 310 Amp or 24 Volt, 220 Amp, HEAVY DUTY
Mfr: Balmar
$407.25
ONLINE ONLY
Mercury Quicksilver, Mercruiser Delco Alternator, 863077T
SKU: 293586
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Mfr: Quicksilver by Mercury
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Mfg# 863077T
$1,054.11
Balmar 621-Series, 12 volt, 70 Amp Alternator - Single Pulley
Mfr: Balmar
From: $945.79
621-Series, Single Foot, Dual Pulley, ARS Regulator
Mfr: Balmar
From: $945.79
621-Series Alt/Reg Kit, Single Foot, K6 Pulley, ARS Regulator
Mfr: Balmar
From: $1,129.94
621-Series Alt/Reg Kit, Single Foot, J10 Pulley, ARS Regulator
Mfr: Balmar
From: $989.11
621-Series Alt/Reg Kit, Single Foot, Single Pulley, MC Regulator
Mfr: Balmar
From: $989.11
621-Series, Alt/Reg Kit, Single Foot, Dual Pulley, MC Regulator
Mfr: Balmar
From: $989.11
621-Series Alt/Reg Kit, Single Foot, K6 Pulley, MC Regulator
Mfr: Balmar
$223.49
ONLINE ONLY
Small Frame Alternator, 24 volt, 60 amp, 20151-AM
SKU: 527316
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Mfr: STERNDRIVE ENGINEERING
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Mfg# 20151-AM
$1,047.90
ONLINE ONLY
Specialty Diesel Alternator, Volvo Penta, 24 Volt, 175 Amp, 20083
SKU: 77069
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Mfr: STERNDRIVE ENGINEERING
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Mfg# 20083
$157.50
ONLINE ONLY
Diesel Alternator, Hitachi-Style for Yanmar, 12 Volt, 80 Amp, 20107-HO
SKU: 199275
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Mfr: STERNDRIVE ENGINEERING
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Mfg# 20107-HO
$312.90
SHIPS FREE
ONLINE ONLY
Diesel Alternator, Yanmar, Kohler & John Deere, 12 Volt, 40 Amp, 20135
SKU: 13548
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Mfr: STERNDRIVE ENGINEERING
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Mfg# 20135
$144.90
SHIPS FREE
ONLINE ONLY
Small Frame Alternator, Yanmar, replaces LR 140-132, 12 Volt, 35 Amp, 121370-77200
SKU: 156245
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Mfr: STERNDRIVE ENGINEERING
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Mfg# 20106
$249.90
SHIPS FREE
ONLINE ONLY
Small Frame Diesel Alternator, Yanmar, 12 Volt, 94 Amp, 20025
SKU: 76778
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Mfr: STERNDRIVE ENGINEERING
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Mfg# 20025
$396.90
SHIPS FREE
ONLINE ONLY
Small Frame Diesel Alternator, 12 Volt, 120 Amp, 20028
SKU: 76809
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Mfr: STERNDRIVE ENGINEERING
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Mfg# 20028
$354.90
SHIPS FREE
ONLINE ONLY
Diesel Alternator, Perkins & Lehman, CAT, 12 Volt, 85 Amp, 20172
SKU: 13780
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Mfr: STERNDRIVE ENGINEERING
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Mfg# 20172
$585.90
SHIPS FREE
ONLINE ONLY
Delco Style Alternator, Diesel Only, Cat Caterpillar, 24 or 32 volt, 75 or 100 amp, 20079, 20085
SKU: 77028
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Mfr: STERNDRIVE ENGINEERING
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Mfg# 20079
$522.90
SHIPS FREE
ONLINE ONLY
Diesel Alternator, Westerbeke, 12 Volt, 40 Amp, 20122
SKU: 115558
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Mfr: STERNDRIVE ENGINEERING
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Mfg# 20122