A.A Ignition Key Switch for Johnson Evinrude OMC — Yamaha 5005801 / 175974 Replacement with Safety Lanyard and Push-to-Choke

A.A replacement ignition key switch for Johnson, Evinrude and OMC outboards with safety lanyard — model numbers 5005801 and 175974 — provides a direct plug-and-play swap to restore starting and kill-switch safety.

If your outboard ignition key is worn, the kill-switch lanyard is frayed, or the push-to-choke function has failed, this A.A aftermarket ignition key switch is designed to return reliable starting and safety control. Engineered to meet or exceed OEM specifications, the unit fits as a direct replacement for Yamaha part numbers 5005801 and 175974 and installs without rewiring on compatible Johnson, Evinrude and OMC/BRP systems.

How does this ignition key switch restore safe engine operation?

The assembly replaces the key switch and includes a safety lanyard that stops the engine if the operator leaves the helm. The built-in kill function acts instantly when the lanyard is pulled, helping prevent runaway boats and remaining compliant with standard safety practices.

• Integrated safety lanyard kill-switch for immediate engine shutoff
• Push-to-choke feature to help cold starts
• Designed to meet or exceed OEM safety and durability standards

Will this part fit my Johnson, Evinrude or OMC outboard?

This A.A ignition switch is a direct aftermarket replacement for units using Yamaha part numbers 5005801 and 175974 and is intended for compatible Johnson, Evinrude and OMC/BRP engines. Because it uses the same plug-and-play connector layout, installation is typically straightforward when the matching harness is present.

• Replaces Yamaha 5005801 and 175974
• Compatible with many Johnson/Evinrude/OMC models that accept these part numbers
• Simple plug-and-play design minimizes wiring changes

How easy is installation and what tools are needed?

Installation is designed for quick replacement: unplug the old switch, connect the new harness, and secure the mounting hardware. Most installations require only basic hand tools and take under an hour for a tidy job, with no special crimping or soldering required when the existing connector matches.

• Disconnect battery before replacing the switch
• Unplug factory connector and plug in new unit
• Secure switch in dash and test choke/kill functions

What performance characteristics and features should I expect?

The A.A ignition key switch includes push-to-choke operation for easier cold starts, robust contacts to handle starter currents, and a durable housing to tolerate marine environments. It’s manufactured as a direct replacement that meets or exceeds original equipment performance benchmarks.

• Push-to-choke for reliable cold-start assist
• Durable contacts and housing suited to marine use
• Meets or exceeds OEM specifications for fit and function

Who is this for: This A.A ignition key switch with safety lanyard is intended for boat owners, marine mechanics, and restoration projects that need a dependable, OEM-compatible replacement for worn or broken ignition switches on Johnson, Evinrude and OMC outboards. Choose this unit if you want a plug-and-play swap that restores starting, choke and kill-switch safety without complex rewiring.