Pollak 31-159 4-Position Ignition Switch – 4 #10-32 Stud Terminals, Keyed Alike

Professional-Grade Ignition Control with Enhanced Electrical Security

The Pollak 31-159 4-Position Ignition Switch is a high-performance electrical component engineered for heavy-duty vehicle and equipment applications. Designed with a rugged zinc die-cast housing, this universal-type switch is built to provide reliable service in demanding environments, including commercial trucking, agricultural machinery, and industrial equipment.

This model features a 4-position configuration (Accessory – Off – On/Accessory – Start) with a momentary start function. It is equipped with four #10-32 stud terminals, ensuring a high-torque, secure connection for your wiring harness. To simplify fleet operations, this switch comes Keyed Alike, allowing for one key to operate multiple units across your job site or fleet.

Key Features & Benefits:

• 4-Position Versatility: Dedicated settings for Accessory, Off, Ignition/Accessory, and Momentary Start.

• 4-Stud Terminal Interface: Features four #10-32 stud terminals for a robust, vibration-resistant electrical connection.

• Keyed Alike Convenience: Ideal for fleet managers, providing standardized key access across multiple vehicles or machines.

• Rugged Zinc Die-Cast Construction: Durable housing resists corrosion and impact in harsh work environments.

• High Conductivity: Built with solid brass terminals and copper contacts to ensure maximum electrical efficiency and minimal voltage drop.

• Weather-Resistant Design: Internally lubricated for smooth operation and longevity against dust and moisture.

Technical Specifications:

• Part Number: 31-159 (or 31-159P)

• Positions: 4 (Acc-Off-On/Acc-Start)

• Terminals: 4 x #10-32 Studs

• Base Type: Type 1

• Mounting: 1" - 24 UNS-2A Thread

• Keying: Keyed Alike (Includes 2 Keys)

• Current Rating: 12V DC (Accessory: 30A / Ignition: 8A / Start: 75A)