Engine TDC Inspection Plug (Magnetic Flywheel Viewer Cap) – Hyosung GT125 GT125R GV125

Description

The stock Hyosung TDC plug is a basic, functional part that often becomes an eyesore or seizes up over time. Our CNC-machined aluminium version is a stylish and functional upgrade designed to protect your engine internals. As your engine wears, small metallic particles are released into the oil—this plug uses a high-strength magnetic tip to catch those particles before they can circulate further, providing an early warning system for proactive riders.

💎 Performance with the Reliability!

Finished in tough anodised colours, this plug adds weather resistance and corrosion protection to the stator cover. Because it’s aluminium, it won’t react with the casing and seize as easily as standard steel hardware, making future valve clearances or timing checks much easier.

📜 Confirmed Fitment Guide (125cc v-Twin only)

Reference OEM Part Number: 09247H12102

🔧 Expert Installation Tips

• Don’t Overtighten: Aluminium threads are strong but don’t need the same “brute force” as steel. Snug is enough to seal the washer.
• Check the Magnet: At every oil change, unscrew this plug and wipe any “fuzz” (metal particles) off the tip. It’s a great way to monitor your internal engine health.
• Swap & Go: No special tools needed. Simply unscrew the old plastic/steel plug and replace with this CNC beauty.

📧 FITMENT QUESTIONS? Email us with your bike details. For timing tutorials or engine advice, visit the HyoRiders Forums.