Simple 12 Circuit Wiring Harness Kit with 12V Fuse Block

Universal 12-circuit wiring harness designed for basic 12-volt vehicles that do not require modern high-draw accessories. Suitable for classic cars, hot rods, trucks, kit cars, race cars, and custom builds needing a clean, reliable electrical system.

• Universal design for nearly any 12-volt vehicle
• Supports carbureted or EFI engines (EFI requires additional engine-specific harness)
• Compatible with automatic or manual transmissions
• Intended for vehicles without power windows, power locks, large audio systems, or other high-load accessories

Electrical system:
• Number of circuits: 12
• Fuse style: Mini blade (APM/ATM spec)
• Fuse block included
• Appropriate wire gauge and fuse rating for each circuit load
• Uses modern blade fuses available at any auto parts store

Wiring construction:
• Automotive-grade copper wire
• GXL polyethylene insulation
• High temperature rating (-40°F to +257°F)
• Color-coded using standard GM circuit colors
• Labeled every six inches for easy identification
• Wire gauge range: 8–16 gauge

Fuse block:
• Compact two-piece design
• Fuse block dimensions: 3.7" x 1.9" x 3.8"
• Clip-in fuse block allows easy service and flexible mounting
• Includes turn signal and hazard flasher

Steering column compatibility:
• Plug-and-play with most 1968–1996 GM tilt steering columns
• Compatible with many aftermarket GM-style tilt columns
• Includes ignition switch connectors
• Can be adapted to non-GM columns using included wiring diagrams

Harness layout:
• Wires bundled into four pre-sorted sections for easier routing:
– Front/engine feed
– Dash
– Ignition and lighting
– Rear of vehicle
• Tail light leads are 12 feet long (may need extension for wagons or pickup trucks)

Included components:
• Wiring harness with pre-labeled circuits
• Mini fuse block with installed fuses
• Flasher
• Wiring connectors and terminals
• Firewall grommet
• Zip ties
• Instruction manual with color diagrams

Installation notes:
• Custom mounting required (no mounting bracket included)
• Ensure mounting hardware does not contact internal terminals
• Fuse block base can be separated for easier installation

Specifications:
• Number of circuits: 12
• Fuse block: Yes
• Fuse type: Mini blade
• GM column compatible: Yes
• Ignition switch location: Column or dash
• Harness length: Standard