Name: Engine Front Sprocket Drive Shaft Oil Seal O-Ring Kit - Hyosung 125 &amp; 250 GV GT Models
SKU: 09283-27010_GT125RC
Availability: InStock

Engine Front Sprocket Drive Shaft Oil Seal O-Ring Kit – Hyosung 125 & 250 GV GT Models

Estimated delivery dates: Apr 23, 2026 - Apr 24, 2026

£5.99

💎 FRONT SPROCKET SHAFT SEAL KIT | OIL-TIGHT SAFETY UPGRADE

Stop dangerous oil leaks before they hit your rear tyre. This essential 2-piece service kit restores a perfect seal to the front sprocket area, eliminating messy engine splatter and ensuring peak safety on the road.

✅ Safety First: Prevents oil fling onto the rear tyre and potential loss of grip.
🛠️ Comprehensive Kit: Includes both the Inner O-Ring and Outer Oil Seal (2 parts total).
⚙️ OEM Spec Quality: Reliable fitment for all compatible 125cc & 250cc legacy models.
📦 Maintenance Must: Smart upgrade when changing sprockets or performing engine maintenance.

❗ CRITICAL CHECK: Often mistaken for a neutral sensor leak. If you have oil behind your front sprocket cover, you need this kit. Play it safe!

Description

Over time, the constant rotation, heat, and pressure can wear down the front sprocket shaft seals, leading to a steady weep of engine oil. If you have an older Hyosung 125 or 250, replacing these soft seals is a non-negotiable safety upgrade. This kit is designed to provide an oil-tight seal, protecting your engine’s performance and, crucially, keeping your rear tyre clean and safe from dangerous oil residue.

💎 Essential Seals for Safe Performance

Use this kit to resolve those stubborn leaks and regain full confidence in your machine.

Stop Oil Splatter Keeps your engine casing and swingarm clean.	Safety Assurance Prevents hazardous oil fling onto your rear tire.
Dual Component Fix Includes both the O-Ring and the Oil Seal for a complete job.	OEM Quality Fit Engineered to match original specs perfectly.

📜 Confirmed Fitment Guide

✅ FITS (125cc & 250cc Legacy Models):
• GT125/R/RC, GT250/R/N/EFI (2003-2021)
• GV125 (Carb), GV250 Aquila (2001-2016)
• RX125 / XRX125

❌ WILL NOT FIT: GV125-S or GV300-S Fuel Injected models (2019+).

💡 RECOMMENDED PAIRING:
When performing this repair, it is crucial to install a fresh front sprocket locking washer. We stock those too—view all hardware here.

🔧 Install Tips

Sprocket Alignment: Ensure the raised “hump” of your front sprocket faces OUTWARDS (away from the engine) when refitting.
Clean the Area: Thoroughly clean the shaft and casing area before installing new seals to ensure a perfect fit.
Gently Does It: Use a flat tool to gently lever out the old seals, taking care not to scratch the soft aluminium engine casing.

📧 FITMENT QUESTIONS? Email us with your bike details. For technical help or community opinions, visit the HyoRiders Forums.

OEM Ref#: 09280-26003 / 09280-19005