Skip to content

Welcome to Harbor Supply - Your Ultimate Marine Supplier! | Call Us at 888-296-6432

SAME DAY SHIPPING - PLACE YOUR ORDER BY 4PM EST

Returns Shipping

Search

Product type

Search Log in Basket

Menu

Shop All Categories
Electrical
Electronics & Navigation
Fishing
Marine Safety
Outfitting
Entertainment
Apparel

Same Day Shipping*
Contact Us
About Us
Track Your Order

Home
Electrical

Electrical

Sort by

Featured
Most relevant
Best selling
Alphabetically, A-Z
Alphabetically, Z-A
Price, low to high
Price, high to low
Date, old to new
Date, new to old

View as List Grid

FiltersFilter & Sort

Applied Filters

Clear all

Sort by

Featured
Most relevant
Best selling
Alphabetically, A-Z
Alphabetically, Z-A
Price, low to high
Price, high to low
Date, old to new
Date, new to old

Product type

Accessories (381)
Alternators (116)
Battery Chargers (243)
Battery Isolators (33)
Battery Management (187)
Busbars, Connectors & Insulators (162)
Charger/Inverter Combos (34)
Circuit Breakers (274)
DC to DC Converters (50)
Electrical Panels (114)
Fuse Blocks & Fuses (224)
Inverters (81)
Meters & Monitoring (89)
Monitoring System (1)
Shore Power (118)
Solar Panels (4)
Switches & Accessories (287)
Terminals (394)
Tools (21)
Windlass Accessories (1)
Wire (621)
Wire Management (297)

Clear

Price

From $

-

To $

From To

Clear

Brand

Clear

Category

Marine Electronics (1)

Clear

12% off

Balmar
Balmar Alternator 1-2" Single Foot Dual V Pulley Regulator Temp Sensor - 170A Kit - 12V [XT-SF-170-DV-KIT]

$1,306.99 ~~$1,490.69~~

Very low stock (3 units)

View details
15% off

Victron Energy
Victron BMV-712 Black Smart Battery Monitor [BAM030712200]

$158.95 ~~$187.00~~

Low stock (14 units)

View details
38% off

Blue Sea Systems
Blue Sea 4026 AC Isolation Cover - 5-1/4 x 3-3/4 x 3 [4026]

$28.99 ~~$46.99~~

Very low stock (6 units)

View details
15% off

Victron Energy
Victron Orion-Tr Smart DC-DC Charger Isolated 48/12 20A (240W) [ORI481224120]

$159.80 ~~$188.00~~

Low stock (9 units)

View details
15% off

Victron Energy
Victron Centaur Charger - 12 VDC - 60AMP - 3-Bank - 120-240 VAC [CCH012060000]

$560.15 ~~$659.00~~

Very low stock (4 units)

View details
39% off

Blue Sea Systems
Blue Sea 7443 UL-489 Circuit Breaker - 20A Flat Rocker [7443]

$38.99 ~~$63.99~~

Very low stock (8 units)

View details
38% off

Blue Sea Systems
Blue Sea 7482 360 Panel - Rocker Switch SPDT - ON-OFF-ON [7482]

$4.99 ~~$7.99~~

Very low stock (6 units)

View details
39% off

Blue Sea Systems
Blue Sea 8100 ELCI GFCI Panel [8100]

$451.99 ~~$742.99~~

Very low stock (5 units)

View details
39% off

Blue Sea Systems
Blue Sea 7287 C-Series Triple Pole Circuit Breaker - 50A [7287]

$150.99 ~~$247.99~~

Low stock (16 units)

View details
39% off

Blue Sea Systems
Blue Sea 7433 Single Pole Small Case 2" Slot Reset Rocker Circuit Breaker - 50 Amp [7433]

$26.99 ~~$43.99~~

Very low stock (3 units)

View details
39% off

Blue Sea Systems
Blue Sea 8376 Panel DC 13 Position Vertical [8376]

$416.99 ~~$684.99~~

Very low stock (7 units)

View details
7% off

ARCO Zeus
ARCO Zeus A275L 1"-2" Single Foot Alternator w/Terminal Block Zeus High-Energy Alternator Regulator [4027-AZ1000]

$1,782.70 ~~$1,920.20~~

Very low stock (2 units)

View details
7% off

ARCO Zeus
ARCO Zeus A225S Vortec Alternator w/Regulator Zeus High-Energy Alternator Regulator [4018-AZ1000]

$1,673.80 ~~$1,795.90~~

Very low stock (2 units)

View details
6% off

ARCO Zeus
ARCO Zeus A225S J-180 3.15" Alternator w/Terminal Block Zeus High-Energy Alternator Regulator [4010-AZ1000]

$1,563.80 ~~$1,670.50~~

Very low stock (2 units)

View details
9% off

ARCO Zeus
ARCO Zeus 24V 7kW J180 4" Alternator w/Isolated Ground Zeus High-Energy Alternator Regulator [4503-AZ1000]

$2,223.80 ~~$2,444.90~~

Very low stock (2 units)

View details
21% off
ARCO Marine
ARCO Marine Premium Replacement Alternator w/Single-Groove Pulley - 12V, 70A [20810]

$237.99 ~~$299.91~~

Very low stock (2 units)

View details

Previous
Page 99 / 234
1
…
97
98
99
100
101
…
234
Next

Your cart

Your cart is empty

Subtotal:$0.00 USD

Loading...

Contact Us

Expert help & advice
Check your order status

Updates & tracking
Returns & Exchanges

All you need to know
Price-match guarantee

Our promise to you

Harbor Supply

info@harbor-supply.com

By Phone: 860-969-4684

Customer Service Tel. 888-296-6432

By Chat - Click on our Chat Icon

Monday-Friday, 9AM-5PM EST

21 Bradley Corners Rd, Madison, CT 06443, United States

Facebook
Instagram

QUICK LINKS

About Us
Contact Us
Payment Policy
Privacy Policy
Returns & Refunds
Shipping
Terms & Conditions
Disclaimer

NEWSLETTER

Sign up for exclusive offers, original stories, events and more.

Email

Payment methods accepted

© 2026 Harbor Supply.

Choose options

Item added to your cart.

View cart