Pollak 31-178 4-Position Ignition Switch – 4 Stud Terminals (#10-32) – Keyed Alike D250

Reliable Ignition Control for Heavy-Duty Performance

Upgrade your vehicle's starting system with the Pollak 31-178 4-Position Ignition Switch. Engineered for the demanding environments of heavy trucks, off-road equipment, and marine applications, this universal switch offers a rugged zinc die-cast housing and internal weather-resistant seals to ensure long-lasting durability against moisture and dust.

Keyed Alike D250 Convenience The 31-178 model is Keyed Alike with code D250, making it the perfect solution for fleet managers or equipment owners who want to simplify key management across multiple vehicles or machines.

Superior Construction & Specs Featuring a 4-position configuration (Accessory – Off – On/Accessory – Start), this switch includes a momentary start function with a spring return. It is equipped with four #10-32 stud terminals for secure wiring connections and solid copper contacts for maximum conductivity.

Key Features:

• Heavy-Duty Housing: One-piece zinc die-cast construction.

• Weather Protection: Features two lip seals to prevent moisture and debris from entering the contact chamber.

• Universal Fit: Designed for a standard 1" diameter mounting hole (Mounting Hole Pattern 5).

• High Amperage Rating: 30A Accessory / 8A Ignition / 75A Start (Make) at 14V DC.

• Complete Package: Includes two keys (D250) and all necessary mounting hardware.

Common Applications:

• Heavy-Duty Trucks & RVs

• Construction & Agricultural Equipment

• Marine Vessels & Industrial Machinery

• Towing & Utility Vehicles