Radiator Cooling Thermo Fan Switch Thermostat – Hyosung GV125-S (Bobber 125 S EFi)
Prevent catastrophic engine overheating with a reliable switch. This vital sensor sits in your radiator and tells the fan when to kick in. A failing switch is a common cause of stranded commuters—replace it with this OEM-spec unit to ensure your engine temperature stays under control.
- ✓FUNCTION // Triggers the cooling fan at the exact factory temperature.
- ✓RELIABILITY // Prevents overheating and potential engine damage.
- ✓QUALITY // Aftermarket unit meets or exceeds OEM specifications.
- ✓INSTALL // Simple swap during a coolant service.
Description
Keeping your liquid-cooled EFi V-Twin running at the correct temperature is non-negotiable for life on the road. The original cooling fan switch thermostat is a critical component that can fail without warning. When it does, your engine overheats, leaving you stranded.
💎 Essential Engine Health & Reliability
A perfect fit that offers peace of mind, especially for daily commuters and garage mechanics.
Triggers fan precisely.
Matches OEM reliability.
Simple 2-wire connector.
Built for long service intervals.
📜 Confirmed Fitment Guide
📅 YEARS: All S models from 2019+ onwards
❌ WILL NOT FIT: Older pre-2019 carbureted GV125s, GT125, GT250, or any 300cc models.
When replacing this sensor, you should always flush your old coolant and replace it with fresh, high-quality engine coolant.
🔧 Install Tips
- Cool Down First: Never open the cooling system when hot. Wait until the engine is cold to avoid serious burns.
- Bleed the Air: After fitting and refilling the coolant, you must bleed all air out of the system. Check your manual or the forums for the correct procedure.
Additional information
| Weight | 0.4 kg |
|---|---|
| Dimensions | 3 × 3 × 3 cm |
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Independent Shop supplying ride enhancements and quality spares with fast dispatch. Need assistance? Access our workshop guides, manuals, tutorials or drop by the forums for troubleshooting help.
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