What’s the difference between marine wire and regular wire?

Marine wire uses tinned (tin-coated) copper strands that resist the corrosion salt air causes, and it’s more finely stranded so it flexes with vibration without breaking. Standard automotive or household wire corrodes and fails much faster in a marine environment.

How do I size a fuse for a marine circuit?

Size the fuse to protect the wire, not just the device. Match the fuse rating to the wire gauge’s safe current capacity so the fuse blows before the wire overheats. When adding a new circuit, follow the wire manufacturer’s ampacity chart for the gauge and run length you’re using.

Do I need a battery switch on my boat?

A marine battery switch is strongly recommended. It lets you disconnect the battery for storage or service, isolate a failed battery, and — on multi-battery setups — choose which bank powers the boat. It’s a core safety and reliability component.

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ARCO Marine

ARCO Marine Zeus A275L N62 Alternator w/Clutch Pulley & Terminal Block

Manufacturer: ARCO MarinePart #: 4026SKU: 107325

50A
12V
110°

$1185.80● In stock

Item #: 107325

Category: Alternators

● In stock — ships fast from US warehouses

Ships from US warehouses
Free shipping on orders over $99
Secure checkout — your info is protected
Genuine marine-brand parts, not knockoffs
30-day returns
Marine parts support — we know boats

Description

Zeus A275L N62 Alternator with Clutch Pulley & Terminal Block The highest power output alternator in its size/class. Features: Engineered for High Energy Production.

Suitable for Marine, RV, Military, and Commercial applications. Rapidly charges large battery banks.

Coolest operating temperatures for increased performance. Runs 8 - 20% cooler than incumbent alternators due to: Heat shedding coatings, Rectifier located on housing exterior, Dual cooling fans, and OEM Components.

It is 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/Cerakote. Our advanced coating absorbs less heat, keeping the A275L cooler.

This translates to more amperage for sustained periods. Use an ARCO Zeus Bluetooth alternator regulator or lithium battery charging for maximum performance.

SAE J1171 Certified. Made in the U.

S. A.

Technical Specifications: Voltage - 12v Field Type - P Rotor Poles - 16 Stator Size - 138mm Frame Size - Large Weight - 14. 9 lbs/6.

7 kg Regulation - External Only (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.

) Output Voltage - 14. 1v (Default) Finish - (Black) Cerakote or E-coating Cut-In RPM - 1,061 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, 50A Rated, Avalanche Max Output (Cold, 9,000 RPM) - 311 Amps Sustained Cruising Output (Hot, 6,000 RPM) - 227 Amps Sustained Idle Output (Hot, 3,000 RPM) - 198 Amps Max Continuous Operating Temperature - 110°C / 230°F Mounting Application: Mercedes Sprinter 1999-2006 alternators, Mercedes Sprinter Factory dual alternator 2007-Up Replacement.

Replaces Road

Specifications

Brand	ARCO Marine
Part Number	4026
EverTide SKU	107325
UPC	659859427546
Voltage	12 V
Beam Angle	110°

Specifications are provided by the manufacturer. Confirm fitment for your application before ordering, or contact us and we'll help.

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	ARCO Marine Zeus A275L N62 Alternator w/Clutch Pulley & Terminal Block$1185.80You're viewing	ARCO Marine Premium Replacement Alternator w/50mm Multi-Groove Pulley$340.82	ARCO Marine Premium Replacement Alternator w/65mm Multi-Groove Pulley - 12V 70A$269.93	ARCO Marine Premium Replacement Alternator w/Multi-Groove Pulley - 12V 55A$298.68
Voltage	12 V	12 V	12 V	12 V

Complete your setup

ARCO Marine

ARCO Marine Premium Replacement Alternator w/Multi-Groove Serpentine Pulley - 12V & 65A

$315.45

Returns & warranty

Returns are accepted within 30 dayson items that are unused and in their original packaging. Some items may be subject to a manufacturer restocking fee. Special-order items may not be eligible — if you're unsure, ask us before ordering.

ARCO Marine productscarry the manufacturer's standard warranty. For a warranty claim or a return authorization, see our full returns policy or contact us.

Electrical — frequently asked

What’s the difference between marine wire and regular wire?: Marine wire uses tinned (tin-coated) copper strands that resist the corrosion salt air causes, and it’s more finely stranded so it flexes with vibration without breaking. Standard automotive or household wire corrodes and fails much faster in a marine environment.
How do I size a fuse for a marine circuit?: Size the fuse to protect the wire, not just the device. Match the fuse rating to the wire gauge’s safe current capacity so the fuse blows before the wire overheats. When adding a new circuit, follow the wire manufacturer’s ampacity chart for the gauge and run length you’re using.
Do I need a battery switch on my boat?: A marine battery switch is strongly recommended. It lets you disconnect the battery for storage or service, isolate a failed battery, and — on multi-battery setups — choose which bank powers the boat. It’s a core safety and reliability component.

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Ships from US warehouses — free over $99

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