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Green and black 4 gauge OFC wiring kit with oversized cables and connectors

WUQ

WUQ Oversized 4 Gauge OFC Big 3 Upgrade Green/Black Electrical Wiring Kit car electronics accessory

SKU CH-MHT3-3YHFH

Oversized 4-gauge OFC wiring kit for Big 3 electrical upgrades in vehicles

  • Product typeCar
  • Oversized 4-gauge conductors reduce voltage drop on high-current runs
  • Oxygen-free copper strands maximise conductivity for reliable power delivery
  • Green and black colour coding simplifies positive and negative identification
  • Big 3 upgrade design reinforces factory charging paths for stable voltage
  • New condition ensures full strand integrity and insulation performance

Big 3 Wiring Upgrade Kit

This oversized 4-gauge OFC wiring kit upgrades the factory big-three power paths in a vehicle. It replaces the alternator-to-battery, battery-to-chassis and engine-to-chassis cables with larger conductors. The green and black jacket colour-coding simplifies polarity identification during installation.

Installation Fit and Electrical Headroom

The kit plugs directly into existing battery posts, alternator output stud and chassis ground points without requiring new mounting locations. Thicker copper reduces voltage drop under heavy audio loads, freeing headroom for amplifiers and accessories. No additional terminals or fuse holders are included in the package.

Suited for High-Current Audio Builds

Installers adding large amplifiers or multiple batteries will benefit from the reduced resistance path. Vehicles staying with stock electrical systems and modest power demands will not see measurable gains. Buyers needing integrated fuse blocks, ring terminals or specific length cables should look for a more complete kit.

How it compares

Measured against everything we stock in Car Audio Accessories & Wiring, at today’s prices. Recalculated every night.

Price $115.99
Pricier than about 84% of the 2,768 comparable items (median $21.99).

Specifications

Product
Product typeCar

Questions about this item

Does the 4-gauge OFC cable handle continuous high-amperage runs without overheating?

The oversized 4-gauge oxygen-free copper conductors are designed for the high current demands of a Big 3 upgrade, reducing voltage drop under sustained load.

Will the insulation stay flexible and quiet when routed near the engine and exhaust?

The green and black PVC jacket remains pliable in engine-bay temperatures and resists abrasion, so it won't stiffen or rattle against surrounding components.

What battery terminal style does the kit assume I already have on the vehicle?

The kit provides raw cable and lugs; you must supply ring terminals that match your specific battery posts — top-post, side-post or stud — and the alternator and chassis bolt sizes.

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