Help keep the starter locked out until the selector is in Park or Neutral, and keep your back-up lights switching on in Reverse, with this Standard Ignition switch, part number NS-123. This Neutral Safety Switch / Back-Up Light Switch is a direct-fit replacement for many vehicles, among them the 1997-2003 Ford Escort, 2000-2001 Mazda MPV and 1991-1994 Mazda 323. See the Buyer's Guide tab for the full list and engine details.
The switch reads the gear-selector position. It is designed to let the starter engage only in Park or Neutral and to power the back-up lamps when Reverse is selected. This part is listed under both names: neutral safety switch and back-up light switch.
- Controlled production: Standard Ignition, a global manufacturer of original equipment ignition products, maintains quality control throughout the manufacturing process, from componentry to finished product.
- Copper alloy conductors: Chosen for strong electrical conductivity with low resistive losses.
- 100% tested: Each part is checked to verify both mechanical and electrical switching performance.
- Built for technicians: Robust design and high-grade materials, backed by decades of research and development focused on what technicians need.
Signs this part may need replacing: The engine won't crank in Park or Neutral, the engine cranks in a drive gear, or the back-up lights stay off in Reverse. Other faults can cause these symptoms, so diagnose the circuit first. If a failed switch of this type is the cause, NS-123 replaces it.
Interchange: S26071 · F4062 · NS5564 · F6CZ7A247AA · FBO221444A · SW5166 · FB0221444A · FB0221444APT · FB0221444B · FB0221944A
This part cross-references / interchanges with the following part numbers:
S26071, F4062, NS5564, F6CZ7A247AA, FBO221444A, SW5166, FB0221444A, FB0221444APT, FB0221444B, FB0221944A
