Pollak 31-499 4-Position Ignition Starter Switch – Replaces 31-366P – 7 Blade Terminals – Heavy-Duty Zinc Die-Cast

The Modern Standard for Heavy-Duty Ignition Control

The Pollak 31-499 4-Position Ignition Switch is the high-performance successor to the popular 31-366P. Specifically engineered for the rigorous demands of the heavy-duty truck, agricultural, and construction industries, this switch combines rugged physical durability with precise electrical engineering.

Constructed with a robust one-piece zinc die-cast housing, the 31-499 is built to handle high-vibration environments while providing a smooth, reliable transition between power states. Whether you are performing a routine maintenance replacement or upgrading your equipment’s electrical interface, this switch delivers OEM-level quality you can trust.

Key Features & Benefits:

• Direct Replacement: The official replacement for the discontinued Pollak 31-366P, ensuring a perfect fit and function without the need for rewiring.

• 4-Position Versatility: Features dedicated detents for Accessory – Off – On – Start (Momentary Start).

• 7-Blade Terminal Configuration: Engineered for easy integration with standard wiring harnesses, allowing for accessory and ignition circuit management.

• Extreme Durability: One-piece zinc die-cast housing and high-impact plastic base protect against mechanical wear and impact.

• Environmental Shielding: Features internal O-ring and lip seals designed to block out moisture, dirt, and corrosive contaminants.

• Superior Conductivity: Solid copper contacts minimize resistance and heat, ensuring reliable engine cranking every time.

Technical Specifications:

• Part Number: 31-499 (Retail: 31-499P)

• Legacy Part Cross-Reference: Replaces 31-366P

• Positions: 4 (Acc-Off-On-Start)

• Terminals: 7 Blade Terminals

• Rating: 12V DC, 30A (Typical)

• Housing Material: Zinc Die-Cast

• Mounting: 1" Diameter Threaded Stem

• Keying: Various Keyed (Includes 2 Keys)