Classic Update Wiring Harness, With Rally Gauges & Rear Defroster (1978 Firebird)Find parts that fit my vehicle

Authentic Dash Harness. The Dash Wiring Harness with Rally Gauges, Digital Clock, and Defrost (78L) is designed to provide a factory-accurate electrical connection for your vehicle’s dashboard components. It ensures reliable function of all dash instruments including gauges, warning lights, and added features like the digital clock and rear window defogger. This harness allows proper operation of electrical systems critical to driver awareness and vehicle control.

Construction and Appearance. Manufactured to meet original General Motors specifications, this dash harness is fully assembled, taped, and ready for installation. It features high-quality wiring and connectors with a design that incorporates a new fuse box compatible with original style glass fuses. The harness is engineered for durability while maintaining the authentic look and function of the vehicle’s dash.

Installation. Installation is straightforward due to the harness being fully assembled and ready to install, requiring no complex modifications or drilling. It fits directly in place of the original dash harness, making replacement or restoration efficient and precise.

Application. Specifically fits Pontiac Firebird 1978 models equipped with rally gauges, digital clock radio, and electric rear window defogger. Includes a twist-in lamp socket for the heater control indicator lamp applicable to late 1978 models.

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