Pollak 31-273 4-Position Ignition Switch - 7-Blade Terminals, Various Keyed

Enhanced Connectivity for Modern Fleet & Industrial Equipment

The Pollak 31-273 Ignition Switch is a high-capacity, 4-position starter switch engineered for vehicles requiring extensive accessory circuits. Unlike standard 4-terminal switches, the 31-273 features a 7-blade terminal configuration, designed to interface seamlessly with complex wiring harnesses, including the standard Packard connector #2984017.

Rugged Construction for Demanding Environments

Built with a durable zinc die-cast housing and a high-impact base, this switch is designed to withstand the heavy vibrations and mechanical stress common in commercial trucking and construction. It includes a momentary start function and is internally lubricated for a long service life of up to 50,000 cycles.

Advanced Environmental Protection

To ensure reliability in all weather conditions, the 31-273 is equipped with an internal lip seal and a weather-resistant O-ring. These features create a barrier against moisture and dust, preventing corrosion of the solid copper contacts and ensuring consistent electrical performance.

• 4-Position Function: Accessory – Off – On/Run – Start (Momentary).

• 7-Blade Terminals: Ideal for use with Packard connectors and complex electrical systems.

• Various Keyed: Provides unique key security (not keyed alike) for added vehicle protection.

• Weatherproof Design: Includes a protective lip seal and O-ring to keep out environmental contaminants.

• Industrial Strength: Solid copper contacts and zinc die-cast housing for maximum conductivity and durability.