Standard Ignition NS-379 Neutral Safety Switch

Neutral Safety Switch for Ford Super Duty Applications

Standard Ignition NS-379 is a neutral safety switch built for dependable electrical and mechanical switching performance. It uses copper alloy conductors for strong conductivity and low resistance, making it a practical replacement for Ford E-350 Super Duty and Ford F-250 Super Duty service needs.

Fits 2005-2013 Ford E-350 Super Duty, N/A. Fits 2003-2010 Ford F-250 Super Duty, N/A. Fits 2003-2010 Ford F-350 Super Duty, N/A.

Key Features

• Female connector with 1 connector interface
• 3 male blade terminals for direct electrical connection
• Built with copper alloy conductors for efficient current flow
• 100% tested for mechanical and electrical switching performance
• Robust construction for service replacement use

Product Details

Standard Ignition NS-379 is a neutral safety switch for vehicles that require accurate transmission range signaling before the starter circuit will engage. This part number is listed for Ford E-350 Super Duty, Ford F-250 Super Duty, Ford F-350 Super Duty, and related Ford van applications across the model years shown. The NS-379 is engineered with durable materials and tested to verify switching function, helping restore proper starter interlock operation and reliable electrical communication at the transmission selector.

This part cross-references Cardone Reman 72-2633 for the same application.

Common Issues This Part May Resolve

• No-crank condition when the transmission is in Park or Neutral
• Starter engagement only in certain gear positions
• Intermittent or inconsistent neutral safety signal
• Transmission range switch electrical faults
• Starting circuit problems related to worn switch contacts

Installation Notes and Tips

Verify the connector style, terminal layout, and vehicle application before installation. The NS-379 uses a female connector with 3 male blade terminals, so matching the harness and switch indexing is important for correct fitment. Confirm the transmission is in the proper range and follow the vehicle service procedure for adjustment and alignment after replacement.

Quality Assurance

Standard Ignition builds this switch with high-grade materials and validates both mechanical and electrical operation through testing. The design reflects long-term development focused on technician requirements and consistent service replacement performance.