Stainless Steel Engine Inspection Plug (TDC Viewer Cap) – Hyosung GV125-S EFi (Aquila 125 S)
Solve that rusty cap problem permanently. This CNC-machined stainless steel inspection plug replaces the weak OEM alloy viewer cap. It’s stronger, totally corrosion-proof, and designed to be removed cleanly every time you perform a valve clearance or timing check. A smart, long-term upgrade.
- ✓MATERIAL // CNC-machined Stainless Steel (Brushed finish).
- ✓ADVANTAGE // Won’t seize or rust like the factory steel plug.
- ✓INSTALL // Works with standard Allen key or socket (no special tool needed).
- ✓WHAT’S INCLUDED // 1x Plug & 1x New sealing washer.
Description
Regular valve clearance checks are essential maintenance for the GV125S Bobber. Unfortunately, the factory steel inspection plug is a common failure point—it rusts solid, making access difficult or impossible without damaging the engine cover threads. This stainless steel upgrade is the definitive modification for life on the road. It’s precision-made to fit perfectly and provides a sleek, technical visual look to your engine bay, saving you headaches during every service interval.
💎 Performance in the Details (CNC/Stainless)
The final touch your engine deserves. Stronger, sharper, and built to resist the UK weather.
Stays clean and easy to remove.
No awkward OEM tool needed.
Seals perfectly with the included washer.
Adds a subtle custom aesthetic.
📜 Confirmed Fitment Guide
📅 YEARS: All S models from 2019+ onwards.
❌ WILL NOT FIT: Older pre-2019 carbureted GV125s, GT125, GT250, or any 300cc models.
Match this inspection plug with the stainless steel main crank plug for a full, clean engine bay aesthetic.
View Stainless Crank Plug here.
🔧 Install Tips
- Use Anti-Seize: A light touch of anti-seize or clean oil on the threads is highly recommended to ease future maintenance.
- Torque Carefully: Tighten gently by hand until snug, then use the specific low torque setting from your service manual. Do not overtighten!
- See the Video: Check the video in the gallery for a quick visual guide!
Additional information
| Weight | 0.3 kg |
|---|---|
| Dimensions | 3 × 3 × 3 cm |
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GARAGE PICKS // ADD TO BUILD
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MAF MAP (Throttle Body Mass Air Pressure Sensor) – Hyosung GV125S [Bobber 125 S]
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Stainless Steel Crank Shaft Plug (Flywheel Stator Cover Cap) – Hyosung GV125-S [Bobber 125 S]
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520 Upgrade Chain & Sprocket Kit [Conversion] – Hyosung GV125-S EFi Bobber 125 S
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Stainless Steel Engine Covers Bolt Kit (Motor Case Screws) – Hyosung GV125-S EFi Bobber
£19.99
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