Standard Ignition Back Up Light Switch,Neutral Safety Switch P/N:NS-20
Help keep the starter from engaging while the transmission is in gear with the Standard Neutral Safety / Back-Up Light Switch, part number NS-11. This switch is designed to let the engine crank only in Park or Neutral. It fits many vehicles, among them the 1972 Toyota Corolla, 1987-1988 Jeep Wrangler and 1968-1978 Dodge Charger. See the Buyer's Guide tab for the full list.
Standard lists this part under two names: neutral safety switch and back-up light switch. Besides its starter-circuit role, a back-up light switch turns on the reverse lamps when the transmission is shifted into Reverse.
Signs this switch may need replacing include an engine that won't crank in Park or Neutral, an engine that cranks in other gears, or back-up lights that don't come on or stay on. Wiring, fuses and switch adjustment can cause similar symptoms, so diagnose the cause before replacing the switch.
Interchange: J3218190 · J8121146 · S290 · 8800 · 1972523 · 2926495 · 2932820 · 3218190 · 8121146 · CR401 · NS6562 · 12336867 · 424705C1
This part cross-references / interchanges with the following part numbers:
Is this the right Charger switch for my 1968-1978 Dodge Charger?
Yes. The NS-11 is listed for the 1968-1978 Dodge Charger, along with many other vehicles. Check the Buyer's Guide tab to confirm your exact year and model.
Does the NS-11 fit the 1972 Toyota Corolla or the 1987-1988 Jeep Wrangler?
Yes, both the 1972 Toyota Corolla and the 1987-1988 Jeep Wrangler are listed applications. The Buyer's Guide tab has the complete fitment chart.
What does a neutral safety / back-up light switch do?
It is designed to allow the engine to crank only in Park or Neutral. Its back-up light function turns on the reverse lamps when the transmission is shifted into Reverse.
What are signs this switch may need replacing?
The engine may not crank in Park or Neutral, may crank in other gears, or the back-up lights may not work correctly. Check the wiring, fuses and switch adjustment before replacing it.
How is the Standard NS-11 tested?
Standard tests 100% of these switches to verify both mechanical and electrical switching performance. The switch uses copper alloy conductors for strong conductivity with low resistive losses.
WARNING: These products can expose you to chemicals including lead and phthalates, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.