NGK Uprated HT Coil Spark Plug Cap/Covers (x2) – Hyosung GTR GT GV (Various Models)
🤍 Genuine NGK // 🏡📦🚚 3–4 Days UK Delivery
Premium spark upgrade for Hyosung riders who demand better ignition performance from a trusted Japanese brand! 🏁
- 🌡 Improved heat resistance for stable performance under load
- 🔩 Better vibration resistance thanks to silicone outer shell
- ⚡ Higher sparking rate with ceramic resistor technology
- ⚡ Sharper RPM response for snappier throttle feel
- ✔ Trusted NGK quality vs. factory parts — fewer ignition problems
- 💡 Sold as a set of 2 pieces (Front & Rear)
🔻 Scroll down for full tech details!
Description
⚡ NGK Uprated HT Coil Spark Plug Caps – Hyosung GT / GTR / GV Series
(x2 Pieces – Front & Rear)
When it comes to ignition performance, every component counts. Your spark plugs are like your tyres – without them, you’re going nowhere. But the unsung hero in this chain is the HT Coil Spark Plug Cap – the part that connects your ignition coil to your spark plug, delivering the electrical punch your engine needs, every time, even when HOT.
Many Hyosungs suffer from poor OEM caps that break down over time, leading to weak spark, misfires, and inconsistent performance. This NGK upgrade is a premium, proven solution used by riders who demand reliability and power.
🚨 Common Faulty OEM Cap Symptoms:
- Bike jerks or surges when the cap gets hot
- Misfire or hesitation between 6–9k RPM
- Bouncy or erratic RPM needle
- Exhaust note changes – feels boggy
- Cracked insulation or visible wear on older bikes
| 🚚 UK Delivery | 🛠 Fitting Instructions |
|---|---|
| In stock – allow 3–4 working days Includes BOTH caps (Front & Rear) |
No special tools required – swap & go! (Need help?) |
🌍 Global Shipping Available – contact us for a quick quote.
🏍 Model Fitment
| GT125R & RC | GT250R & RC | GT650R & RC |
| GV650 | GV125 Aquila (Up to 2017) | ST7 |
| GV250 Carby & EFI | GT125 Naked | GT250 Naked |
🔬 NGK Technical Advantages:
- ⚡ Faster cold starts, runs cooler, vibration-resistant
- ☔ Better weather resistance thanks to ceramic resistor
- 📡 Perfect noise suppression without reducing performance
- 🛡 Prevents flashover & maintains steady resistance over time
- 💪 Rugged phenolic resin & heat-resistant rubber build
- 🔒 Moisture-proof design to avoid electrical leakage
💡 Install Tips:
- 🧼 Clean the plug top and coil terminal before fitting
- ⚙️ Check HT leads for cracks or wear – replace if needed
- 🛑 Don’t overtighten – push until fully seated, no forcing
- 📏 Match the old cap length to ensure correct fit
- 🔍 Ideal time to inspect spark plugs for fouling or wear
🎬 Customer Video Review: Watch on YouTube
OEM Reference: 33500H88412, 33500H88411, 33500H88410, 33510-05C01, 33500HC8101, 33500HP9511, 33500HP9500, 33500HP9510, 33500HP9512
Additional information
| Weight | 0.5 kg |
|---|---|
| Dimensions | 10 × 5 × 2.5 cm |
7 reviews for NGK Uprated HT Coil Spark Plug Cap/Covers (x2) – Hyosung GTR GT GV (Various Models)
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Your Hyosung parts hub genuine & aftermarket parts + upgrades with UK & worldwide shipping.
Lee Bartlett (verified owner) –
Fits a lot better than original plug cap and as always you can’t go wrong with NGK products. Very good quality plug cap.
dufferdave (verified owner) –
Top Quality , improves performance and tickover.
Andy (verified owner) –
Easy upgrade
Luke –
Easily fitted and noticeable improvement. Highly recommended. Fast delivery to Spain. Excellent service from Marcel
eman ellul –
Just upgraded to the uprated 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
sverrema –
Ordered these from Norway. Super fast delivery and responses from the team during the order process. The caps together with uprated coils and iridium spark plugs have made a big difference. Cold start much easier and engine feels snappier 🙂
MattHyo627 (verified owner) –
Installed on RC 2018. Can’t go wrong with NGK, the rest of the reviews have got everything spot on. Can’t fault them, great starts, improved performance and great value. Can’t beat it.
Matt