When a personal watercraft won't start or a spare key fob won't connect, two very different parts usually enter the picture: a stator magneto coil and a key fob remote programmer. One keeps the ignition and charging system powered; the other handles the Yamaha Security Immobilizer System (Y-COP) so you can register a new remote. Both are new-condition parts, and the stator coil is priced about $37 lower than the programmer. Still, your decision should be driven by the repair task more than by the listed price.
Quick Verdict
If your WaveRunner FAT1100 SX212SSX needs charging or ignition help, the Stator Magneto Coil is the targeted replacement part. If you already have a working engine but can't get a new key fob recognized, the Key Fob Remote Programmer Interface Tool is the accessory you need.
Comparison at a Glance
| Product | Listed Price | Price Bar | Best For |
|---|---|---|---|
| Stator Magneto Coil for FAT1100 SX212SSX | USD 112.93 | Ignition and charging repair | |
| Key Fob Remote Programmer Interface Tool | USD 149.99 | Key fob registration |
Where Each Product Wins
These two parts don't overlap in function, so the right choice depends on what your watercraft is actually doing.
- Stator Magneto Coil wins when your project is an ignition or charging system repair. It's a replacement stator assembly for the FAT1100 SX212SSX Waverunner, and it comes as one unit.
- Key Fob Remote Programmer Interface Tool wins when you need to register a remote key fob. It's designed for Yamaha WaveRunner models and handles the key registration role.
Product Notes
Stator Magneto Coil for FAT1100 SX212SSX Waverunner
This new stator assembly is built for the FAT1100 SX212SSX Waverunner and works as an aftermarket replacement for the ignition and charging system. If your watercraft has weak spark or weak charging output, this is the core component you'd swap in. The manufacturer warranty runs for 1 month. The package weight is 1,145 g, with the quantity set at one piece, so you receive a single stator assembly rather than a kit. It's also purely a stator coil - it has no role in key fob programming or security immobilizer setup. If your trouble is with the security system, you'll want the interface tool instead.
Key Fob Remote Programmer Interface Tool
This interface tool is made for programming and registering remote key fobs on Yamaha WaveRunners with the Y-COP security system. It works with Yamaha models that have that system and requires a Windows-based computer. The package includes the interface tool only - the actual key fob is not included. That makes it the right choice when you already have a fob but need to link it to your watercraft. The tool is focused on the security interface, not engine repair, so it won't solve a stator or charging problem. If your watercraft is losing spark or battery charge, this programmer won't help you diagnose that.
Final Choice by Use Case
- Engine won't stay running or isn't charging: Go with the Stator Magneto Coil for FAT1100 SX212SSX.
- Need to register a new or spare key fob: Go with the Key Fob Remote Programmer Interface Tool.
- You have both concerns: Start with the stator coil to get the engine healthy, then use the programmer if a fob still won't sync.
