Standard Ignition NS-99 Neutral Safety Switch

Reliable Neutral Safety Switch for Nissan and Infiniti Vehicles

The Standard Ignition NS-99 Neutral Safety Switch is designed to ensure safe and accurate transmission operation for select Nissan and Infiniti models. Engineered with durable materials and precise specifications, this switch helps maintain proper vehicle function and safety.

• Compatible with Nissan 200SX, G20, NX, and Sentra models
• 12-volt electrical rating suitable for standard automotive systems
• Black face color with aluminum and plastic finish for durability
• Rectangular male connector with 4 blade terminals for secure electrical connection
• Bolt mount attachment method for straightforward installation
• Compact length of 4.25 inches (107.95 mm) for proper fitment

Product Features and Specifications

The NS-99 neutral safety switch from Standard Ignition is constructed from metal with an aluminum and plastic finish, providing a robust and corrosion-resistant component. It features a single rectangular male connector housing four male blade terminals, ensuring reliable electrical contact. The switch mounts securely using bolts, though mounting hardware is not included. Its black face color complements the vehicle’s engine bay aesthetics while maintaining functional design. This switch operates at 12 volts, matching the electrical requirements of Nissan and Infiniti vehicles such as the 200SX, G20, NX, and Sentra.

Purpose and Common Applications

• Prevents engine start unless the transmission is in neutral or park
• Ensures safety by disabling starter motor in unsafe gear positions
• Helps maintain proper transmission control system operation
• Resolves issues related to engine cranking failure or intermittent starting
• Addresses electrical connection problems in the neutral safety circuit

Installation Notes and Tips

Installation of the NS-99 neutral safety switch requires removal of the old switch and mounting the new unit using bolts (mounting hardware not included). Ensure the rectangular male connector aligns properly with the vehicle’s wiring harness. Verify that all four blade terminals are securely connected to avoid electrical faults. It is recommended to test the switch function before finalizing installation to confirm proper operation. Consult the vehicle’s service manual for specific torque specifications and safety precautions.

Quality Assurance and Warranty

Standard Ignition manufactures the NS-99 neutral safety switch to meet OEM standards for fit, form, and function. The use of metal construction with aluminum and plastic finishes ensures durability under typical operating conditions. While mounting hardware and gaskets are not included, the product is designed for reliable long-term performance in compatible Nissan and Infiniti models. Warranty details should be confirmed with the point of purchase or manufacturer documentation.