Seachoice 63027 Tinned Copper Marine Wire, 4 AWG, Black, 50'
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You have 30 days to request a return. All sale items are final sale.
Overview
A heavy-duty 4 AWG tinned copper marine wire in black, 50' length. Built for reliable power wiring on boats, it features premium vinyl insulation rated for 600V and temperatures up to 105°C dry / 75°C wet, with ultra-flexible Type 3 conductors that resist corrosion and fatigue in challenging marine environments. It remains flexible in cold conditions and is designed to withstand salt water, battery acid, oil, gasoline, heat, abrasion, and UV exposure.
Key Features
- 4 AWG gauge for high-current marine circuits
- 50' length for flexible routing
- Black premium vinyl insulation rated 600V, 105°C dry / 75°C wet
- Tinned copper conductors (Type 3) for corrosion resistance
- Ultra-flexible design, remains pliable in extreme cold (-40°F / -40°C)
- Resists salt water, battery acid, oil, gasoline, heat, abrasion and UV radiation
Compatible Applications
- Marine electrical wiring and DC power circuits
- Battery connections and power distribution on boats
- Wiring runs in harsh marine environments requiring corrosion resistance
- General marine wiring where flexible, durable copper conductors are needed
Product Details
- Gauge: 4 AWG
- Length: 50 feet
- Color: Black
- Insulation: Premium vinyl insulation, rated 600V, 105°C dry / 75°C wet
- Construction: Ultra-flexible tinned copper conductors (Type 3)
- Flexibility: Maintains flexibility in cold environments (-40°F / -40°C)
- Durability: Resists salt water, battery acid, oil, gasoline, heat, abrasion and UV radiation
- Standards: Designed to exceed UL 1426, ABYC and USCG requirements
Parts Desk Insights
Best Use Case: Ideal for marine power wiring and battery-to-distribution wiring where high current handling and corrosion resistance are important.
Common Issues: Chafing from vibration, exposure to saltwater or improper insulation protection, undersized gauge for a given circuit, or damage from abrasion in routing.
Related Products & Accessories
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Shipping information
In-stock and OEM parts: ship same or next business day.
Locally warehoused items: ship within 1-3 business days.
Special-order items: timeline confirmed after order.
Returns & warranty
Returns & Satisfaction Guarantee
We stand firmly behind the quality of every product we sell. Your confidence matters to us — and we back it with a straightforward 30-Day Satisfaction Guarantee.
If you are not fully satisfied, you may request a return within 30 days of delivery. All returns must receive pre-approval prior to being sent back. Unauthorized returns will not be accepted.
To qualify for a return:
Item must be in new, unused condition
Product must be in its original packaging
All parts, components, hardware, manuals, and accessories must be included
Packaging must be undamaged and suitable for resale
Important:
Electronics are strictly inspected. No returns on open-box electronics. Exceptions may apply only with prior written approval. Any electronic unit that has been installed, powered, activated, or altered may not be eligible for return.
We are serious about product integrity — and equally serious about taking care of our customers. If there is ever a product issue, contact us immediately so we can make it right.
For return authorization, please contact our support team before shipping anything back.