BIG3OFC is a "big 3" wiring kit kit designed to provide a huge upgrade to your alternator charging. Featuring pure 100% copper (OFC) power wiring, this kit provides the best possible power delivery for car audio. All wires are of appropriate length to make your big three upgrade smooth and simple.
- 50 mm² / 0 AWG Big Three Kit
- 100% copper - OFC
- Pre-terminated wires
- Lots of accessories included
- Flexible power wires
- 1x blue 1.2 meter wire
- 1x gray 1.2 meter wire
- 1x gray 1.8 meter wire
Big 3 Upgrade Kit
If you're planning a big audio system in your car with multiple thousand watts, you’ll want to upgrade your alternator power wiring. The Big 3 Upgrade replaces the stock power and ground wires in your engine bay - upgrading the connection between your alternator, battery, and chassis. This means better power flow, less voltage drop, and a more reliable system that won’t leave your amplifiers starving for power.
The kit includes thick OFC copper wires, heavy-duty ring terminals, zip ties, and everything else needed for a clean install. Unlike a capacitor, which only helps during power spikes, upgrading your wiring actually fixes the root of the problem by improving your system’s ability to handle high current loads.
The Three Key Upgrades in the Big 3
- Alternator to Battery (+)
- Battery to Chassis Ground (-)
- Engine Block (Alternator) to Chassis Ground (-)
Included in the kit
1x 1.2m 50mm² / 0 AWG Power Wire
1x 1.2m 50mm² / 0 AWG Ground Wire
1x 1.8m 50mm² / 0 AWG Ground Wire
10x zip ties
10x wire clamps with screws
3x ring terminals
3x heatshrink tubes
2x lock washers
- Logistics Information
- Product Safety Information
Logistics Information
| SKU | BIG3OFC |
| Product Type | Big 3 Upgrade Kit |
| EAN/GTIN | 7394409014533 |
| Product Status | Active |
| Weight (each) | 2.68 kg |
| Unit | pcs |
| Packaging Dimensions (each, W x H x D) | 5.0 x 29.5 x 25.0 cm |
| Master Carton Quantity | 8 |
| Master Carton Weight | 22.4 kg |
| Master Carton Dimensions (W x H x D) | 33.0 x 24.0 x 53.5 cm |
Product Safety Information
Intended Use
This product is intended for general automotive or workshop use, as specified on the packaging or in related documentation. Use only as intended.
Safety Instructions
- Always read all labels and instructions before use.
- Keep out of reach of children.
- Use with appropriate tools and protective equipment where applicable.
- Do not modify the product.
- Avoid exposure to moisture, extreme temperatures, or physical damage.
- For electrical products: Disconnect power before installation. Ensure correct polarity and use proper fuses.
Installation & Handling
Installation or use must be carried out by a competent person. Improper handling may result in injury or damage.
Maintenance
Check regularly for damage or wear. Stop using the product if it appears damaged.
Disposal
Dispose of this product in accordance with local regulations for electrical and electronic waste or general waste, as applicable.
Manufacturer Information
Distributed by:
Winn Scandinavia AB
Idrottsvägen 37
702 32 Örebro, Sweden
winnscandinavia.com
