Exhaust Lambda O2 Oxygen Sensor Hyosung GV125S GV300S
Keep your modern Bobber running smoothly on daily commutes. This vital oxygen sensor sends accurate data to your bike’s computer, preventing rough engine idling, high fuel use, and dashboard warning lights. It is a direct fit replacement built to keep your machine running cleanly without wasting petrol.
- Restore Efficiency // Fixes uneven engine running by keeping the fuel mixture balanced.
- Direct Replacement // Matches original factory specifications for a simple plug-and-play installation.
- Reliability // Solves common electronic fuel injection hesitation issues.
- 📦 Note // Sold as a single unit (remember that some exhaust pipes need a pair).
Description
The engine control computer on your modern GV125S or GV300S depends completely on the exhaust oxygen sensor to calculate petrol delivery. Over time, these sensors can become fouled by carbon soot or heat, making the bike feel hesitant or jumpy during normal riding. Fitting this fresh aftermarket version is a quick way to restore your motorcycle’s smooth throttle response, excellent fuel economy, and stable idling performance.
💎 Technical Performance Spec
| Fixes Rough IdleMaintains stable engine mapping at slow traffic speeds. | Improves Petrol MileageBalances the fuel mixture to stop your engine wasting fuel. |
| Clears Engine LightsResets dashboard fault warnings caused by old sensors. | OEM Spec ConnectorDirect matching plug links cleanly into the wiring harness. |
📜 Model Fitment
Confirmed Matches: Fits the Hyosung GV125S Bobber (2019 onwards) and the Hyosung GV300S Bobber (2020 onwards).
37950H99D0x component series
Note on Quantity: This part is sold individually. If your specific exhaust pipe setup uses two sensors (one for each engine area), make sure to select two items when ordering.
Using a dedicated oxygen sensor removal socket tool makes changing this part very straightforward. Always remember to apply a tiny smear of anti-seize thread paste to the replacement sensor threads to stop it getting stuck in the exhaust pipe later on.
🔧 Fitting Tips
- Apply Anti-Seize Compound: This is a very important step. Putting a thin coating on the threads ensures the metal will not bind inside the hot exhaust pipe from road moisture.
- Take Care Removing Old Parts: Old exhaust sensors can be tight. If your original part is difficult to turn, try loosening it carefully when the engine metal has warmed up slightly.
- Simple Plug Connection: The wire socket is a perfect match for your standard motorcycle wiring. No cutting or joining of wires is needed.
If you want us to double-check your motorcycle’s year or have questions , send us a quick email. For easy tuning advice, visual diagrams, or support from other owners, head to the forums.
Additional information
| Weight | 1 kg |
|---|---|
| Dimensions | 10 × 10 × 4 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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