Description
A leaking oil strainer cover is a messy problem that is easy to avoid. The original rubber O-ring becomes hard and brittle over time because of constant engine heat cycles, losing its power to seal the bottom casing. This genuine replacement seal is soft and designed to provide a reliable, oil-tight fit every single time. It is a very cheap item that plays an important part in keeping your motor clean and healthy during your trips on everyday roads.
💎 LOWER CASING SEAL SPECIFICATIONS
| Stops Oil WeepingLocks the fluid inside the sump to avoid messy oil drops under the bike. | Heat Resistant RubberMade from a durable compound that won’t shrink or rot from hot lubricant. |
| Keeps Things CleanPrevents oil mist from spraying onto your lower exhaust or frame rails. | Peace of Mind SwapA small preventative fix you can trust during your regular maintenance work. |
📜 Confirmed Fitment Guide
Modern V-Twin Bobber Group: Direct fitment verified for the fuel-injected cruiser models specified below.
- Hyosung GV300S Aquila Bobber EFi: Fits all standard models from 2020 to present.
- Hyosung GV300SS Aquila Spoke Bobber: Fits all wire-wheel models from 2020 onwards.
- Older Generation 125 / 250 / 650 Models: This O-ring is built strictly for the modern liquid-cooled 300cc engine setup. It will not fit classic air-cooled bikes like the GV125, GV250, or old GT sport models.
🔧 Install Tips
- Clean the Surfaces: Meticulously wipe down the strainer cap and the engine casing seat before you put the new O-ring on. This ensures no road grit bits block the seal.
- Easy Swap: Simply pull off your old flattened rubber seal and slide the new soft ring into the clean groove on the cap.
- Hand Tighten First: Put the strainer cover back on and snug the bolts down gently. The rubber seal does all the stopping work, so you do not need to overtighten and risk stripping the soft casing threads!














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