Seachoice 63026 Tinned Copper Marine Wire, 4 AWG, Black, 25'
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Seachoice 63026 tinned copper marine wire (4 AWG, black) in a 25' length—made for corrosion resistance and flexible performance in harsh marine environments.
Key Features
- Tinned copper conductor helps protect against corrosion and electrolysis
- Type 3 ultra-flexible stranding for vibration and flexing resistance
- Premium vinyl insulation rated for 600 volts (105°C dry, 75°C wet)
- Stays flexible in extreme cold (down to -40°F/-40°C)
- Designed to resist salt water, battery acid, oil, gasoline, heat, abrasion, and UV radiation
- Built to exceed UL 1426, ABYC, and USCG standards
Product Compatibility
- Marine electrical wiring and battery cable runs
- Boat wiring, battery-to-distribution connections, and DC power connections
- General marine use where tinned copper and flexible wire insulation are preferred
Product Details
- Seachoice 63026 Tinned Copper Marine Wire, 4 AWG, Black, 25'
- Brand/Series: Seachoice
- Part identifier (variant/SKU): 50-63026
- Wire size (gauge): 4 AWG
- Conductor material: Tinned copper
- Insulation type: Vinyl
- Wire color: Black
- Length: 25 ft
- Electrical rating (insulation): 600 volts
- Temperature rating: 105°C dry / 75°C wet
- Flexibility performance: -40°F/-40°C rated
- Compliance/standards: Exceeds UL 1426, ABYC, and USCG
Parts Desk Insights
Best Use Case: Use for marine battery and DC wiring where corrosion resistance and flexibility matter—especially for installations exposed to vibration, moisture, and harsh conditions.
Common Issues: For best results, use marine-rated terminals/lugs sized for 4 AWG and make sure the connection mates cleanly before crimping. Because this is marine-grade tinned copper, keep terminal contact surfaces tidy and protect the connection with appropriate insulation/heat shrink to maintain long-term corrosion resistance.
Related Products & Accessories
- Explore Marine Wire (Tinned Copper) - Browse additional Seachoice tinned copper marine wire sizes and colors for your project.
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.