-17% sale
ARCO Qualifies for Free Shipping ARCO Replacement Thermistor/Temperature Sensor #WH002
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ARCO ARCO Replacement Thermistor/Temperature Sensor #WH002 $31.19 $37.22
ARCO WH002 AlternatorsReplacement Thermistor/Temperature Sensor for Zeus Bluetooth Regulator - 15'Specifications: Specifically for Zeus Bluetooth Regulator Length: 15' Normalized SKU: WH002
-14% sale
ARCO Qualifies for Free Shipping ARCO Mounting Kit for Mercedes Sprinter 2.0L #MK1202
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ARCO ARCO Mounting Kit for Mercedes Sprinter 2.0L #MK1202 $1,575.00 $1,827.00
ARCO MK1202 AlternatorsMounting Kit for MB Sprinter 2.0LARCO Marine mounting kit specifically for the MB Sprinter 2.0L. Normalized SKU: MK1202
-17% sale
ARCO Qualifies for Free Shipping Arco Bolt Kit for Ford Transit Bracket Mount #TAK210
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ARCO Arco Bolt Kit for Ford Transit Bracket Mount #TAK210 $27.08 $32.32
ARCO TAK210 AlternatorsBolt Kit - Mount N62 Alternator to Mercedes Supplied N62 BracketThe ARCO Marine TAK210 is a specialized bolt kit designed to mount an ARCO Zeus High Output Alternator (specifically an N62 type) onto a factory-supplied Mercedes-Benz N62 bracket. Normalized SKU: TAK210
-14% sale
ARCO Qualifies for Free Shipping Arco Zeus A8000-48v 8kw Ford Transit Alternator Isolated Ground K6 Pulley #4610
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ARCO Arco Zeus A8000-48v 8kw Ford Transit Alternator Isolated Ground K6 Pulley #4610 $2,198.16 $2,549.87
ARCO 4610 AlternatorsZeus A8000-48V 8kW Ford Transit Alternator with Isolated Ground & K6 PulleyARCO Zeus 48V Advantage. Better Technology = Better Performance. High Output/High Amperage Alternator: The Highest Power Output in Its Class.A8000-48V AdvantageThe ARCO Zeus A8000-48V alternator turns on at lower RPMs, runs cooler, and provides more power than other 48V alternators that are larger and heavier. This alternator continuously generates over 3kW (55 Amps) at 2,500 RPM and almost 6kW (111 Amps) at 4,000 RPM. Put in real-world terms, a marine diesel engine charging at 1,200 RPM with a 3.13:1 pulley ratio is generating just over 5kW (97 Amps), and a Mercedes Sprinter at 750 RPM with a 3.21:1 ratio is generating over 3kW (55 Amps)!True 24V AlternatorsInstead of using rotors designed for 48 volts, many competitor’s alternators simply use their 12V rotors, which are less efficient and limit output at all RPMs. In this scenario, your external smart regulator must drastically reduce the field by as much as 78%. If this is not done correctly, you run the risk of destroying the unit and damaging other components in your system. ARCO utilizes a native 48V rotor and field current. This results in our 48V alternator running cooler than competitors’ 48V alternators, having a direct impact on the alternator’s lifespan.Features: Replace your noisy generator! Engineered for high energy production. Suitable for marine, RV, military, and commercial applications. Rapidly charges large battery banks. Coolest operating temperatures for increased performance: Heat-shedding coatings Rectifier located on housing exterior Dual cooling fans OEM components Optimized for performance at idle speeds. Reduces the need for a generator by creating additional power with your engine. Unleash peak performance with E-Coat, keeping the high amp alternator cooler for sustained amperage output. For maximum performance or lithium battery charging, use the ARCO Zeus Bluetooth Alternator Regulator. Technical Specifications: Voltage - 48V Field Type - P Rotor Poles - 16 Stator Size - 138mm Frame Size - Large Weight - 15.89lbs/7.2kg Regulation - External Only (EX) Finish - (Black) E-coating Cut-In RPM - 1,920 Alternator RPM Maximum Alt RPM - 19,000 Battery Post - M8 Thread Post, Side Mount Standard Pulley - 49K6 (6-groove, 49mm) Pulley Mount - 17mm diameter shaft, 25mm long, threaded M17 x 1.5 Pulley Hardware - M17 x 1.5 x 24mm nut, w/ 18mm ID x 29mm OD washer (Included) Diodes - 6 positive, 6 negative, 80A Rated, Avalanche Max Output (Cold, 9,000 RPM) at 53.5v - 180 Amps - 9,360 Watts – 14.8 kW PTO Sustained Cruising Output (Hot, 6,000 RPM) at 53.5v - 138 Amps - 7,383 Watts – 10.5 kW PTO Sustained Idle Output (Hot, 2,500 RPM) at 53.5v - 78 Amps 4,173 Watts – 6kW PTO Max Continuous Operating Temperature - 100°C / 212°F Normalized SKU: 4610UPC Code: 604670338199
-17% sale
ARCO Qualifies for Free Shipping Arco Marine Zeus A115/3500w 24v HD High-Output Alternator #4413
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ARCO Arco Marine Zeus A115/3500w 24v HD High-Output Alternator #4413 $1,196.66 $1,436.00
Download LiteratureARCO 4413 AlternatorsZeus A115/3500W 24V HD High Output Alternator - Pad MountARCO Zeus Heavy Duty Alternator is engineered for maximum output and extended-duty performance in demanding marine and diesel applications. Delivering the highest power output in its class, this high-amperage alternator is built to rapidly charge large battery banks and support high electrical loads with confidence.Zeus Heavy Duty operates at exceptionally cool temperatures thanks to dual internal cooling fans, ensuring sustained performance, extended service life, and reliable power production over long run times. Its high-energy output reduces reliance on onboard generators by producing more usable power directly from your engine.Features: Replace your noisy generator! Suitable for most diesel applications Designed for extended duty operation Engineered for high energy production Rapidly charges large battery banks. Coolest operating temperatures for increased performance, with dual internal fans Reduces the need for a generator by creating additional power with your engine. External Regulation Required Regulation:External Only (EX): These units will come with a terminal block and a P-Type harness. They will only work with an external regulator, such as an ARCO Zeus Bluetooth alternator regulator.Specifications: Voltage: 24V Field Type: P Rotor Poles: 12 Weight: 18.7 lb (8.5 kg) Regulation: External Only (EX) Cut-In RPM: 1,288 Maximum Alt RPM: 10,000 Rear Battery Post: M8 Thread Standard Pulley: K8 59 mm Shaft Diameter: 7/8 in (22.22 mm) Avalanche Diodes: 50 amps Max Output (Cold): 132 amps Sustained Cruising Output (Hot, 6,000 RPM): 104 Amps Sustained Idle Output (Hot, 3,000 RPM): 89 amps Max Continuous Operating Temperature: 125°C Normalized SKU: 4413ARCO 4413 Literature Download Product Brochure
-17% sale
ARCO Qualifies for Free Shipping Arco Marine Zeus A115/3500w 24v HD High-Output Alternator #4412
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ARCO Arco Marine Zeus A115/3500w 24v HD High-Output Alternator #4412 $1,196.66 $1,436.00
Download LiteratureARCO 4412 AlternatorsZeus A115/3500W 24V HD Hight Output Alternator - J180 MountARCO Zeus Heavy Duty Alternator is engineered for maximum output and extended-duty performance in demanding marine and diesel applications. Delivering the highest power output in its class, this high-amperage alternator is built to rapidly charge large battery banks and support high electrical loads with confidence.Zeus Heavy Duty operates at exceptionally cool temperatures thanks to dual internal cooling fans, ensuring sustained performance, extended service life, and reliable power production over long run times. Its high-energy output reduces reliance on onboard generators by producing more usable power directly from your engine.Features: Replace your noisy generator! Suitable for most diesel applications Designed for extended duty operation Engineered for high energy production Rapidly charges large battery banks. Coolest operating temperatures for increased performance, with dual internal fans Reduces the need for a generator by creating additional power with your engine. External Regulation Required Regulation:External Only (EX): These units will come with a terminal block and a P-Type harness. They will only work with an external regulator, such as an ARCO Zeus Bluetooth alternator regulator.Specifications: Voltage: 24V Field Type: P Rotor Poles: 12 Weight: 18.7 lb (8.5 kg) Regulation: External Only (EX) Cut-In RPM: 1,288 Maximum Alt RPM: 10,000 Rear Battery Post: M8 Thread Standard Pulley: K8 59 mm Shaft Diameter: 7/8 in (22.22 mm) Avalanche Diodes: 50 amps Max Output (Cold): 132 amps Sustained Cruising Output (Hot, 6,000 RPM): 104 Amps Sustained Idle Output (Hot, 3,000 RPM): 89 amps Max Continuous Operating Temperature: 125°C Normalized SKU: 4412UPC Code: 604670326004ARCO 4412 Literature Download Product Brochure
-17% sale
ARCO Qualifies for Free Shipping Arco Marine Zeus A220/3000w 12v HD High Output Alternator #4044
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ARCO Arco Marine Zeus A220/3000w 12v HD High Output Alternator #4044 $1,021.66 $1,226.00
Download LiteratureARCO 4044 AlternatorsZeus A220/3000W 12V HD High Output Alternator - Pad MountARCO Zeus Heavy Duty Alternator is engineered for maximum output and extended-duty performance in demanding marine and diesel applications. Delivering the highest power output in its class, this high-amperage alternator is built to rapidly charge large battery banks and support high electrical loads with confidence.Zeus Heavy Duty operates at exceptionally cool temperatures thanks to dual internal cooling fans, ensuring sustained performance, extended service life, and reliable power production over long run times. Its high-energy output reduces reliance on onboard generators by producing more usable power directly from your engine.Features: Replace your noisy generator Designed for Extended Duty Operation Engineered for high energy production Rapidly charges large battery banks Coolest operating temperatures for increased performance, with dual internal fans Reduces the need for a generator by creating additional power with your engine External Regulation Required SAE J1171 Certified Regulation:External Only (EX): These units will come with a terminal block and a P-Type harness. They will only work with an external regulator, such as an ARCO Zeus Bluetooth alternator regulator.Specifications: Voltage: 12V Field Type: P Rotor Poles: 12 Weight: 18.7 lb (8.5 kg) Regulation: External Only (EX) Cut-In RPM: 1,288 Maximum Alt RPM: 10,000 Rear Battery Post: M8 Thread Standard Pulley: K8 59 mm Shaft Diameter: 7/8 in (22.22 mm) Avalanche Diodes: 50 amps Max Output (Cold): 249 amps Sustained Cruising Output (Hot, 6,000 RPM): 228 Amps Sustained Idle Output (Hot, 3,000 RPM): 200 amps Max Continuous Operating Temperature: 125°C Normalized SKU: 4044UPC Code: 735380504229ARCO 4044 Literature Download Product Brochure
-17% sale
ARCO Qualifies for Free Shipping Arco Marine Zeus A220/3000w 12v HD High Output Alternator #4043
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ARCO Arco Marine Zeus A220/3000w 12v HD High Output Alternator #4043 $1,021.66 $1,226.00
Download LiteratureARCO 4043 AlternatorsZeus A220/3000W 12V HD High Output Alternator - J180 MountARCO Zeus Heavy Duty Alternator is engineered for maximum output and extended-duty performance in demanding marine and diesel applications. Delivering the highest power output in its class, this high-amperage alternator is built to rapidly charge large battery banks and support high electrical loads with confidence.Zeus Heavy Duty operates at exceptionally cool temperatures thanks to dual internal cooling fans, ensuring sustained performance, extended service life, and reliable power production over long run times. Its high-energy output reduces reliance on onboard generators by producing more usable power directly from your engine.Features: Replace your noisy generator Designed for Extended Duty Operation Engineered for high energy production Rapidly charges large battery banks Coolest operating temperatures for increased performance, with dual internal fans Reduces the need for a generator by creating additional power with your engine External Regulation Required SAE J1171 Certified Regulation:External Only (EX): These units will come with a terminal block and a P-Type harness. They will only work with an external regulator, such as an ARCO Zeus Bluetooth alternator regulator.Specifications: Voltage: 12V Field Type: P Rotor Poles: 12 Weight: 18.7 lb (8.5 kg) Regulation: External Only (EX) Cut-In RPM: 1,288 Maximum Alt RPM: 10,000 Rear Battery Post: M8 Thread Standard Pulley: K8 59 mm Shaft Diameter: 7/8 in (22.22 mm) Avalanche Diodes: 50 amps Max Output (Cold): 249 amps Sustained Cruising Output (Hot, 6,000 RPM): 228 Amps Sustained Idle Output (Hot, 3,000 RPM): 200 amps Max Continuous Operating Temperature: 125°C Normalized SKU: 4043UPC Code: 735380980504ARCO 4043 Literature Download Product Brochure
-22% sale
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EMP EMP Alternator #50-49644 $230.15 $292.30
EMP 50-49644 AlternatorsThis product replaces:840080460437Normalized SKU: 5049644UPC Code: 840080460437
Sold out -16% sale
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EMP EMP Alternator #300-99296 $219.99 $260.98
EMP 300-99296 AlternatorsThis product replaces:840080478173Normalized SKU: 30099296UPC Code: 840080478173
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EMP EMP Alternator #300-98167 $267.14 $339.28
EMP 300-98167 AlternatorsThis product replaces:840080400570Normalized SKU: 30098167UPC Code: 840080400570
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EMP EMP Alternator #300-96549 $263.71 $334.93
EMP 300-96549 AlternatorsThis product replaces:840080450681Normalized SKU: 30096549UPC Code: 840080450681
-22% sale
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EMP EMP Alternator #300-94361 $256.86 $326.23
EMP 300-94361 AlternatorsThis product replaces:840080412375Normalized SKU: 30094361UPC Code: 840080412375
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EMP EMP Alternator #300-92329 $249.33 $316.66
EMP 300-92329 AlternatorsThis product replaces:840080455396Normalized SKU: 30092329UPC Code: 840080455396
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EMP EMP Alternator #300-91618 $249.33 $316.66
EMP 300-91618 AlternatorsThis product replaces:840080446462Normalized SKU: 30091618UPC Code: 840080446462
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EMP EMP Alternator #300-90961 $263.99
EMP 300-90961 AlternatorsThis product replaces:840080475158Normalized SKU: 30090961UPC Code: 840080475158
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EMP EMP Alternator #300-87271 $267.14 $339.28
EMP 300-87271 AlternatorsThis product replaces:840080456980Normalized SKU: 30087271UPC Code: 840080456980
Sold out -2% sale
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EMP EMP Alternator #300-81668 $319.99 $323.59
EMP 300-81668 AlternatorsThis product replaces:840080426983Normalized SKU: 30081668UPC Code: 840080426983
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EMP EMP Alternator #300-81074 $223.99
EMP 300-81074 AlternatorsThis product replaces:840080445724Normalized SKU: 30081074UPC Code: 840080445724
-22% sale
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EMP EMP Alternator #300-76764 $256.86 $326.23
EMP 300-76764 AlternatorsThis product replaces:840080463056Normalized SKU: 30076764UPC Code: 840080463056

Frequently Asked Questions

First Choice Marine is an online marine retailer carrying a diverse line of marine parts and accessories and related items from industry-respected and demanded manufacturers and suppliers. Through our diverse distributor network, we are able to access over 150,000 items, including our current site inventory, new products being added, and special order items. If you need it on your boat... we are your one-stop shop!

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