Each underdash wiring harness is manufactured according to the original General Motors specifications. Each part number is fully assembled, taped, and ready to install upon arrival. The dash harness is almost always the largest harness in a vehicle (for vehicles 1957 and newer), and will include a new fuse box that accepts the original style glass fuses. Underdash wiring harnesses are frequently available in factory gauge or warning light configurations. Cars with factory gauges typically include a temperature gauge, an oil pressure gauge, and an ammeter. Vehicles with a warning light dash do not have in-dash gauges for these items but bulbs that illuminate if the vehicle overheats or has low oil pressure. Under Dash Wiring Harness Features: Fully Assembled and Ready to Install! Correct Reproduction Fuse Block Original Style Connectors OE Style Terminals for Originality Correct Color Wiring for Easier Installation Pre-Wrapped in Black Harness Tape Same as original GM Harness When Required Replaces the Original Harness Exactly! Important: These harnesses are designed for use with factory installed electrical options. Aftermarket gauges, tachometers, ignitions systems, air conditioning assemblies, radios, etc. may required additional or custom wiring.
