Standard Ignition NS-70 Neutral Safety Switch

Neutral Safety Switch for Toyota and Lexus

Standard Ignition NS-70 is a 12V neutral safety switch built with a metal body, aluminum and plastic finish, and a rectangular female connector. It uses 9 male blade terminals and a bolt-mount attachment style for a direct electrical and mechanical replacement on select Toyota and Lexus applications.

Compatible with 1990-1994 Toyota 4Runner and select Lexus models including LS400, SC300, and SC400, this Standard Ignition NS-70 neutral safety switch is a fitment-based replacement for vehicles that need accurate park/neutral circuit operation. This part cross-references 8454035040 and JA4052 for the same application.

Key Features

• Neutral safety switch for 12V vehicle electrical systems
• 9-terminal design with male blade terminals
• 1 rectangular female connector
• Bolt-mount attachment method
• Metal construction with gray and silver finish
• Length: 3.875 in. (98.425 mm)
• Standard Ignition NS-70 replacement part number

Detailed Description

The Standard Ignition NS-70 neutral safety switch is used in the transmission start-circuit and gear-position interlock system. On vehicles such as the Toyota 4Runner and Lexus LS400, SC300, and SC400, the switch helps ensure the starter circuit operates only in Park or Neutral and supports proper signal routing for the transmission range circuit. The NS-70 is built with a metal housing, push-on mounting type, and a single rectangular connector for a straightforward OE-style electrical interface.

For buyers searching for a neutral safety switch for 1990-1994 Toyota 4Runner, 1990-1992 Lexus LS400, or 1992-1994 Lexus SC300 and 1992-1993 Lexus SC400, this part number provides a direct reference point for service and replacement work. Standard Ignition NS-70 is also referenced by S9266 and NS6435.

What It Helps Fix

• Engine will not crank in Park or Neutral
• Intermittent starter engagement
• Incorrect park/neutral switch signal
• Transmission range circuit faults tied to the switch
• Starting issues related to worn or damaged switch contacts

Installation Notes and Tips

Verify connector style, terminal count, and mounting layout before installation. The NS-70 uses a 9-terminal blade configuration with a single rectangular female connector and bolt-mount attachment, so alignment with the transmission selector mechanism is important. Confirm the vehicle application against the listed fitment for 1990-1994 Toyota 4Runner and the specified Lexus LS400, SC300, and SC400 model years before replacement.

Quality Assurance

Standard Ignition is a recognized aftermarket brand for electrical and switch components. This NS-70 neutral safety switch is built to match the listed application details and connector configuration for service replacement use.