Keep your vehicle from cranking in gear and safeguard every start with the Standard Ignition Neutral Safety Switch NS702. This switch installs as a direct-fit replacement for the 2017-2018 Ford Fusion and the 2013-2020 Lincoln MKZ. A neutral safety (park/neutral position) switch allows the starter to engage only when the transmission is in Park or Neutral; if a failed switch is the cause of a no-crank condition or cranking in gear, this unit replaces it.
Signs the original switch may need replacing include the engine failing to crank in Park or Neutral, cranking while in gear, or inconsistent starter engagement. Always diagnose the underlying cause before replacing.
Interchange: CSW599 · NS7104 · DG9Z7H557B
This part cross-references / interchanges with the following part numbers:
What does the NS702 neutral safety switch do?
It allows the starter to engage only when the transmission is in Park or Neutral, helping prevent the engine from cranking while the vehicle is in gear.
Which vehicles does this switch fit?
It is a direct-fit replacement for the 2017-2018 Ford Fusion and the 2013-2020 Lincoln MKZ. See the Buyer's Guide tab for engine details.
What are signs my neutral safety switch may be failing?
Common signs include a no-crank condition in Park or Neutral, cranking while in gear, or inconsistent starter engagement. Diagnose the cause before replacing.
What is this switch made of?
It uses copper alloy conductors for superior electrical conductivity with low resistive losses, along with high-grade materials in a robust design.
What interchange numbers does the NS702 replace?
It cross-references CSW599, NS7104, and DG9Z7H557B.
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.
