HomeElectrical, Lighting and Body > SwitchesStandard Ignition NS-29 Neutral Safety Switch
Part #: NS-29

Standard Ignition NS-29 Neutral Safety Switch

⚙️ 26 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: Ford, E-150 Econoline, E-150 Econoline Club Wagon, E-250 Econoline, E-250 Econoline Club Wagon, E-350 Econoline, F-350, Bronco, E-350 Econoline Club Wagon, F-150, and F-250
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Reliable Neutral Safety Switch for Ford Vehicles

The Standard Ignition NS-29 Neutral Safety Switch is designed to ensure safe engine starting by preventing the vehicle from starting in gear. This switch is compatible with a range of Ford models including Bronco, F-150, F-250, F-350, and various Econoline series trucks and vans.

  • Connector Gender: Female
  • Connector Quantity: 1
  • Terminal Gender: Male
  • Terminal Quantity: 4
  • Compatible with Ford Bronco, F-150, F-250, F-350, and Econoline models
  • Part Number: NS-29

Technical Details and Compatibility

The NS-29 neutral safety switch features a female connector with a single connection point and four male terminals, ensuring secure and reliable electrical contact. This configuration is essential for proper integration with the vehicle’s starting system. Designed specifically for Ford trucks and vans such as the Bronco, E-150 Econoline, E-250 Econoline, and E-350 Econoline series, this switch meets the electrical and mechanical requirements of these models. The part number NS-29 identifies this exact switch, making it easier to find the correct replacement for your vehicle.

Purpose and Common Applications

  • Prevents engine from starting when the transmission is in gear
  • Ensures safety by allowing engine start only in neutral or park positions
  • Resolves issues with engine not starting or intermittent starting problems
  • Eliminates electrical faults related to faulty neutral safety switches
  • Helps maintain proper function of the vehicle’s ignition system

Installation Notes and Tips

When installing the Standard Ignition NS-29 neutral safety switch, ensure the vehicle is in park or neutral and the ignition is off. Disconnect the battery before beginning installation to avoid electrical shorts. Carefully match the female connector and four male terminals to the vehicle’s wiring harness to ensure proper fit and function. It is recommended to verify the switch alignment according to the vehicle’s service manual to prevent transmission or starting issues.

Quality Assurance and Warranty

Standard Ignition parts are manufactured to meet or exceed OEM specifications, providing reliable performance and durability. The NS-29 neutral safety switch undergoes rigorous quality control to ensure consistent operation. While specific warranty details may vary, Standard Ignition typically offers a limited warranty covering defects in material and workmanship. Consult the product documentation or manufacturer for exact warranty terms.

BrandStandard Ignition
Part NumberNS-29
Connector GenderFemale
Terminal GenderMale

This part fits 26 vehicles. Search below:

YearMakeModelTransmissionPositionNotes
1989FordE-150 EconolineAutomaticN/A
1989FordE-150 Econoline Club WagonAutomaticN/A
1989FordE-250 EconolineAutomaticN/A
1989FordE-250 Econoline Club WagonN/A
1989FordE-350 EconolineAutomaticN/A
1989FordF-350N/A
1988FordBroncoAutomaticN/Aw/o Electric Shift
1988FordE-150 EconolineAutomaticN/A
1988FordE-150 Econoline Club WagonAutomaticN/A
1988FordE-250 EconolineAutomaticN/A
1988FordE-250 Econoline Club WagonAutomaticN/A
1988FordE-350 EconolineAutomaticN/A
1988FordE-350 Econoline Club WagonAutomaticN/A
1988FordF-150AutomaticN/A4 Pin
1988FordF-250AutomaticN/A4 Pin
1988FordF-350AutomaticN/A4 Pin
1987FordBroncoN/Aw/o Electric Shift
1987FordE-150 EconolineAutomaticN/A
1987FordE-150 Econoline Club WagonAutomaticN/A
1987FordE-250 EconolineAutomaticN/A
1987FordE-250 Econoline Club WagonAutomaticN/A
1987FordE-350 EconolineAutomaticN/A
1987FordE-350 Econoline Club WagonAutomaticN/A
1987FordF-150AutomaticN/A
1987FordF-250AutomaticN/A
1987FordF-350AutomaticN/A

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

1S53122-880551289880588923251E7TP7A247CANS39NS6597S9005SW2136

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.