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Aftermarket Stator Magneto Alternator Coil – Hyosung 125cc & 250cc Carb Models

Estimated delivery dates: Sep 2, 2026 - Sep 8, 2026
4 reviews

£59.99

⚡ AFTERMARKET CARBY 125 & 250 STATOR COIL // A RELIABILITY FIX!

Solve charging issues permanently and fix flat batteries for good. The electrical system is the heart of your V-twin, and our aftermarket stator coil delivers stable, consistent power. It runs cooler than the outdated old OEM units, ensuring your battery stays optimally charged. This is the single best way to cure cutting-out bugs during a maintenance project or solve ongoing charging issues.

  • Improved Output // Better winding design offers a much steadier electrical supply to your rectifier and battery.
  • Runs Cooler // Generates significantly less internal heat, directly extending the overall component lifespan.
  • Direct Replacement // Simple bolt-on fitment across most standard 125cc and 250cc carbureted variants.
  • Gasket Included // High-quality magneto cover gasket provided also for GV and GT owners.
  • In Stock // Ready for your next ignition overhaul task. Restore clean power delivery to your system immediately.
⚠️ CRITICAL FITMENT ALERT: This stator is for CARBURETED MODELS ONLY. It will NOT fit Electronic Fuel Injection (EFi) models (typically post-2009/2010 for 250s). Check the full compatibility list below before ordering to avoid a cancellation.
⚠️ Also 2013+Onwards “GT125P” “GT125RC” (with LED rear lights) will not fit because they use 18-pole stators (Don’t worry click here).
READ BELOW FOR FULL LIST!
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Description

When your machine starts struggling with dim dashboard lights, intermittent ignition cuts, or a mysteriously flat battery, the generator is the prime suspect. The original black factory components run excessively hot and are now discontinued forever by the manufacturer in Korea. This quality aftermarket Hyosung stator coil serves as a direct, green replacement designed to restore stable voltage across your entire wiring circuit. It optimizes thermal management, generates less internal heat, and keeps your system charging perfectly during touring, road trips, or daily riding. The kit packs an  bolt-on upgrade that includes a complimentary magneto cover gasket for GT and GV variants to ensure a tidy, leak-free casing lock on your workbench during your latest restoration project.

💎 ALTERNATOR OVERHAUL HYOSUNG STATOR COIL SPECIFICATIONS

Component Details
Updated Wiring High-grade isolated copper copper coils providing consistent electrical current and stable battery charging.
Thermal Shielding Advanced green core compound engineered to withstand continuous engine oil immersion without burning out.
Free Casing Gasket Supplied complete with a matching paper seal for GT and GV configurations (❌ Excludes RT and RX models).

📜 Confirmed Model Fitment

Hyosung Models: Fits the following models below only. Double-check your fuel systems to confirm you run carburettors before checking out.

GV125 Aquila Carb
2002 to 2008 models
GT125 & GT125R Carb
2003 to 2009 models
GV250 Aquila Carb
2003 to 2008 models
GT250 & GT250R Carb
2003 to 2009 models
RX125 & RT125 Karion
All production years
❌ CRITICAL INCOMPATIBILITY WARNING:

This stator configuration will strictly NOT fit later electronic fuel injection configurations. Please watch out for the following exclusions:

  • 2008-2010 Transitory Models: Many 250cc variants shifted to fuel injection during this window. Verify you possess active carburettors before unboxing. (Note: We have successfully supplied this component to a rider running a rare late 2010 carburetted model in New Zealand!)
  • GT125 RC & GT125P Naked (2010-2020): These later variants use a slimmer flywheel and a completely separate 18-pole generation system. Please see our dedicated [product page] to purchase that specific alternative.
  • GV125 Aquila (2016-2018): Later carb systems run updated alternator widths. Please contact us via email to verify alternative components.  2016-2018 was the final 2 years of GV125 carb models and they used thinner stators and thinner flywheels.  ⚠️This is important!
  • GV125-S EFi Bobber (2019+ onwards) – These are the new generation EFi machines.  The carb based stator will NOT fit.    If you want an EFi stator for your GV125-S Bobber EFi model (2019+ onwards) please click here for the product page. 

🔧 Installation Advice & Expert Tips

Replacing your generator core is a standard maintenance task. Follow these specialist tips on the workbench to maximize component lifespan:

  • Always Inspect Your Regulator Rectifier: This is a highly crucial system check! A failing or shorted voltage regulator will rapidly roast a brand new stator coil within minutes of operation. Always test your battery charging output parameters using hand tools after seating the cover.
  • Plan a Full Engine Fluid Change: Accessing the internal magneto wheel requires unbolting the left side casing, which naturally drains your engine oil. We highly recommend completing a clean change by dropping a fresh oil filter and fresh oil into your crankcase simultaneously during assembly.
  • Seal the Magneto Casing Face Right: Clean the contact faces with a clean cloth. Utilize the included high-quality replacement gasket and torque your cover screws down evenly in a star sequence. Remember: ☑️ the free gasket is allocated for GT (up to 2012) and GV (up to 2017) models only— ❌RT125 and RX125 variants do not receive a gasket inside this pack.
  • 📖 Need the official workshop service manuals to trace wiring layouts? Join our community forum discussion straight here.
📧 NOT SURE HOW TO TRACE AN ALTERNATOR PHASE SHORT WITH A MULTIMETER? If your system drops voltage when hot or you want to verify your wire connector blocks before opening your order package, you can upload a crisp photo on our boards to get fast help from other owners. For fast sales support, email us your question or if you want to trade quick mechanical tips, head straight over to our technical help forums.

Additional information

Weight 2 kg
Dimensions 30 × 20 × 8 cm
Model Name

GT125R/GT125, GT250 GV250, GV125, RT125 RX125

4 reviews for Aftermarket Stator Magneto Alternator Coil – Hyosung 125cc & 250cc Carb Models

  1. anthony harris

    defo good magneto and defo wakes up the bike

  2. Barry white

    Received my stator today very fast and reliable service once again and thankyou to Marcel who has helped me with getting my bike back up and running will post pics on hyosung website thankyou

  3. Torbjorn Wold-Hansen

    This is an absolute must have for your Hyosung! Had it for around one year now, and it works great.
    Easy to install (P&P) and it delivers on it’s promises!

  4. eman ellul

    Just upgraded to these coils, the uprated regulator, the uprated stator and ngk caps with iridium spark plugs. I have to say it made an amazing difference, the bike almost no longer needs choke (less than a minute and only on first start in the morning), acceleration has improved significantly and my bike is now charging (which was my original problem :p). Very happy with all items 🙂
    Bike is a 2003 gv250 carby model

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