Headlight or Fuel Pump Relay – Hyosung GT125R GT250R GV250 ST7 GT650 GV650
Restore reliable power to your bike’s critical electrical lines. This direct replacement box fixes flickering bulbs on carb models and gets fuel pumping correctly on EFi injected systems, making a new Hyosung fuel pump relay the fastest way to solve sudden starting dropouts on local roads.
- 💡Lighting // Powers high-draw headlamps directly to fix dimming, twitchy, or totally dead front bulbs.
- ⛽ Injection // Sends the essential start signal to the tank pump to build up required line pressure.
- Fitment // Simple push-in prong layout designed to match the main factory wiring loom socket.
- EFi & CARBY // Relay also works for older carb models for their headlights too.
If you are renewing both your fuel pump and your main headlamp together, change your quantity to 2x at checkout.
Description
Electrical gremlins are incredibly annoying to track down, but the actual fix is often just a straightforward, push-in switch box exchange. These bikes use this specific multi-purpose relay block across an incredibly wide selection of model years for two highly critical jobs: turning on the high-draw front bulbs or feeding steady power down to the fuel pump on injection blocks. Because it clicks on and off constantly every single time you ride, the inner contacts wear down naturally over the years. Fitting our high-quality aftermarket Hyosung fuel pump relay is a fast garage maintenance win that stops unexpected breakdown worries on local roads.
💎 POWER SWITCHING HYOSUNG FUEL PUMP RELAY SPECIFICATIONS
| Fuel Pump FixRestores the vital ignition power link to stopped or weak injection pumps. | Headlight SafetyStops main bulb flickering or sudden dark blackouts when riding home at night. |
| True Factory BlueprintEngineered to drop straight into the loom slot to replace factory code: 38740HG5100. | Plug and Play SwapProngs slide smoothly straight into the stock plastic plug holder without tools. |
| Premium InternalsSourced from high-quality parts to ensure long-term heavy current switching. | Sealed Outer HousingTough outer shell casing designed to block road spray, moisture, and engine grime. |
📜 Confirmed Fitment Guide
Multi-Model Electrical Group: Verified pin fitment across the wide range of carb and injection twin platforms listed below. See the diagram picture for location tips.
- Hyosung GT125R / GT250R / GT650R: Fits faired sports models across all production years.
- Hyosung GV250 / GV650 Aquila: Fits cruiser models running matching factory code layouts.
- Hyosung ST7 Cruiser: Fits the 700cc cruiser injection network.
Depending on your exact model year, this identical block is utilized on the headlight wiring lines OR the fuel delivery lines. Check your bike’s original wire colors to see which line you are renewing.
🔧 Install Tips
- Safety Comes First: Always go under your seat and unbolt the black negative terminal cable from your battery before you unhook or pull any plastic wire connections on your frame loom.
- Finding the Right Box: Relays are normally tucked away securely under the main rider seat or hidden behind the plastic rear side fairings. Take a quick look over your owner chart to find the exact box you need to replace.
- Listen for the Click: A healthy, correctly connected unit should make a crisp, distinct mechanical clicking sound the split second you turn your ignition key on (for fuel system lines) or when you click your handlebar light switches.
Additional information
| Weight | 0.5 kg |
|---|---|
| Dimensions | 5 × 5 × 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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