Boat Ignition Switch 87-17009A5 Fit Mercury Outboard 25 2 CYL (International)
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Compatible Models
We do our best to list all compatible models. Although this may be the part you need, your exact model may not appear below.
Boat Ignition Switch for Mercury Outboard 25 2 CYL (International)
This boat ignition switch 87-17009A5 is a direct electrical replacement for starting and stopping a Mercury outboard 25 2 CYL (International) engine, matching the original key-switch function.
Overview
This boat ignition switch 87-17009A5 is built to replace the worn key switch on a Mercury Outboard 25 2 CYL (International) motor. It controls the ignition circuit for reliable engine start and shutdown, and it is ideal for marine use on small outboard-powered boats.
Built For Performance
- OEM cross-reference part number 87-17009A5
- Standard marine ignition switch positions (off, on, start)
- Rugged construction for exposed deck and console mounting
- Simple plug-in or terminal-style wiring for straightforward replacement
- Compatible with 2-cylinder Mercury outboard electrical systems
Fits These Machines
- for Mercury Outboard 25 2 CYL (International)
- for Mercury Outboard 30 2 CYL (International)
On-The-Job Use
- Replaces the original ignition switch on a Mercury 25 2 CYL outboard
- Used for key-controlled starting on aluminum fishing boats and tenders
- Common repair item for small outboard maintenance and restoration projects
Specs At A Glance
| Part Number(s) | 87-17009A5 |
| Application | Mercury Outboard 25 2 CYL (International) |
| Type | Ignition Switch |
Good To Know
Q: Can this switch be used on a Mercury 30 2 CYL as well? A: Yes, the part number 87-17009A5 is shared between Mercury 25 2 CYL and 30 2 CYL (International) outboards, so it can replace the ignition switch on both models if the wiring matches.
Q: Does this switch come with a wiring harness? A: This is the ignition switch unit only; you will reuse the existing wiring connectors or terminals from your current outboard setup.
Slight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.