Negative Battery Cable Harness – 14" Overmolded Multi-Battery (2/3/4 Battery, Red/Black)
Warranty Information
ROADWEST stands behind the parts we sell. Unless otherwise stated on the product page, your purchase is covered by a 1-Year Limited Warranty against manufacturing defects under normal use.
What’s covered
- Defects in materials or workmanship
- Premature failure caused by factory-related issues
What’s not covered
- Normal wear and tear, cosmetic aging, corrosion from environment/road salt
- Damage from improper installation, incorrect wiring, modifications, misuse, or accidents
- Labor costs (installation/removal), downtime, towing, or other indirect costs
How to file a claim
Contact us with:
- Order number
- Product name / SKU
- Clear photos or a short video showing the issue
If approved, ROADWEST will provide an appropriate resolution (replacement parts, replacement unit, or refund/credit).
Please do not send items back without return authorization.
For more details, see our Shipping Policy, Easy Return & Refund Policy, and Warranty pages.
Shipping & Returns
Most ROADWEST orders ship from our U.S. warehouses within 1–2 business days. Standard ground delivery in the contiguous United States is typically 1–3 business days, with freight service used for oversized or extra-heavy parts.
- Shipping area: United States only (no PO Boxes or international addresses).
- Processing time: In-stock items usually ship within 1–2 business days, Mon–Fri.
- Delivery: Standard ground or LTL freight depending on size and weight.
- Returns: Most unused items may be returned within 30 days of delivery, subject to inspection and our return guidelines.
- Costs: Original and return shipping are generally the customer’s responsibility, unless the issue is caused by ROADWEST (wrong item, damaged on arrival, etc.).
For full details, please review our Shipping Policy and Easy Return & Refund Policy before placing your order.
The High Soar Overmolded Battery Harness is a heavy-duty 14 inch negative battery cable harness assembly designed to connect three batteries in a bank. Built around a 100% copper conductor and a durable overmolded design, it is ideal for semi trucks, cars, vans, RVs, boats and other 12V / 24V battery systems that require a reliable multi-battery negative connection.
The cable uses a high-purity copper conductor to deliver maximum current for quick starts and stable power. The overmolded insulation is waterproof, moisture resistant, flame retardant and heat insulating, helping protect the cable and connection points in demanding environments.
This 3-battery harness is designed to link three batteries together on the negative side. Integrated protective caps help shield the contacts from dirt, moisture and corrosion, keeping the connections clean and extending service life.
Thanks to its flexible construction, the harness remains easy to route and manage even in cold weather, and offers good resistance to shock and abrasion in everyday use. Installation is straightforward for most operators and technicians – simply route the cable, secure the terminals and caps, and ensure all connections are tight and clean.
Suitable for a wide range of vehicle and equipment applications, this overmolded battery harness is a smart upgrade or replacement choice for multi-battery systems on semi trucks, commercial vehicles, RVs, marine applications and more. Always confirm length and terminal style to match your existing setup before ordering.
- High-Quality Materials: 100% copper conductor for maximum current and reliable starting performance.
- Overmolded Protection: Waterproof, moisture resistant, flame retardant and heat insulating outer layer helps protect the cable and connections.
- 3-Battery Design: Purpose-built to connect three batteries in one negative harness, ideal for multi-battery banks.
- Corrosion Protection: Protective caps help cover the contacts and reduce corrosion from moisture and road debris.
- Flexible & Durable: Remains flexible in cold weather and is resistant to shock and abrasion for long-term use.
- Wide Applications: Compatible with semi trucks, cars, vans, RVs, yachts and other equipment using multi-battery systems.
- Easy Installation: Simple to route, assemble and manage in most battery compartments.
| Brand | High Soar |
|---|---|
| Part Type | Overmolded Negative Battery Harness |
| Cable Length | Approx. 14 inches |
| Number of Batteries | 3-Battery Connection (Negative Side) |
| Conductor Material | 100% Copper |
| Insulation / Jacket | Overmolded, waterproof, moisture resistant, flame retardant and heat insulating |
| Polarity | Negative Battery Cable Harness |
| Color | Black |
| Applications | Semi trucks, cars, vans, RVs, boats and other vehicles with multi-battery systems |
| Key Features | 3-battery design, protective caps, flexible in cold weather, shock and abrasion resistant |
| Included Components | 1 × Overmolded 14" Negative Battery Harness Assembly for 3 batteries |