Tired of wondering whether your outboard will crank safely? The Mercury Neutral Safety Switch (87-8M0207794) slips into the control bracket and quietly makes sure your engine can’t fire unless the throttle sits squarely in neutral—a small part with a big payoff. 
PartsVu

Why this OEM upgrade belongs in every Mercury owner’s toolbox:

• Marine-grade build – molded polymer housing, stainless hardware, and weather-sealed leads shrug off corrosion and salt spray. 
  PartsVu
  
  
• Exact Mercury fit – drops straight into the factory mount and plugs into the three-wire harness used on dozens of 135–250 hp FourStroke, Verado, and MerCruiser control brackets.
  Freeport Marine Supply

• Compact & light – only 0.07 lb; package footprint roughly 6.5 × 4.25 × 1 in, so it won’t crowd linkage hardware. 
  MerCruiser Parts
  
  
• Proven lineage – supersedes 8M0052939, 889514A01, and 814281A7, giving you the latest revision with improved sealing. 
  Freeport Marine Supply

Swap the tired switch during a routine cable check, click the connector home, and cruise off knowing every start will be smooth, deliberate, and unmistakably Mercury-reliable.