Wiring Harness Modified Single Box Weatherpack

The Wiring Harness Modified Single Box Weatherpack (MPN 50-2033) is a purpose-built ignition harness designed for custom automotive electrical systems, primarily used in race cars, hot rods, and heavily modified vehicles where factory wiring cannot support performance upgrades or custom dash configurations. This harness pairs seamlessly with Quickcar switch panels and single-box ignition systems, eliminating the need for complex wiring modifications and reducing installation time on competition or street builds. Whether you're converting to a modern ignition control system or building out a custom race car from the ground up, this weatherpack connector solution provides a clean, reliable interface between your ignition box and driver-accessible controls.

The modified single-box configuration uses Weatherpack connectors—a mil-spec sealed connector standard trusted in automotive and off-road applications for superior weather resistance and vibration tolerance. Weatherpack terminals are individually sealed within the connector body, protecting against moisture ingress, corrosion, and electrical failure in harsh underhood environments common in drag racing, off-road, and extended motorsport use. The harness design accommodates the compact profile required for modern ignition modules while maintaining proper conductor gauge and current-carrying capacity for high-ignition-demand engines. At 0.8 lbs and compact dimensions (7.55 x 1.95 x 11.15 inches), this harness integrates easily into tight engine bays without adding bulk, and the pre-terminated design eliminates crimping and soldering errors during installation.

Mechanics and fabricators working with Quickcar switch panels, LS swap projects, or standalone ignition systems will find this harness essential for clean, professional builds. The weatherpack connector standard ensures long-term reliability on vehicles exposed to engine heat cycling, vibration, and moisture—critical for race-weekend reliability and street performance applications. Installation is straightforward: connect the ignition box side to your single-box ignition control module, route the harness to your dashboard or switch panel location, and terminate at the driver-side controls. This harness is ideal for custom car builders, race teams, and restoration shops tackling modern ignition retrofits on classic vehicles or purpose-built competition platforms.