Oil Drain Cap Strainer Cover – Hyosung GD250R GD250N RT125D
Maintain your engine’s lifeblood. This replacement strainer cover plate and standard bolt set is the perfect fix for rounded hardware or weeping leaks. Specifically sourced for the modern single-cylinder GD and RT range to ensure a factory-standard seal.
- Complete Kit // 1x Strainer Cover Plate + 1x Standard Drain Bolt.
- Direct Fit // Exact replacement for GD250R, GD250N, and RT125D models.
- Reliability // Restores the sump point to original specifications.
- Note // Supplied with a non-magnetic bolt (O-Ring sold separately).
Description
Whether you are hitting the streets on a GD250 or taking your RT125D along everyday dirt paths, your oil drain assembly takes constant impact from heat and road grime. A damaged strainer cap can lead to slow leaks that ruin an engine over time. This high-quality replacement version allows you to refresh your sump parts during your next service, keeping the engine base tidy, secure, and oil-tight.
💎 Service Upgrades & Add-ons
 UPGRADE SUMP BOLTTrap loose engine metal flakes. Get a Magnetic Bolt here. |
 ADD LEAKPROOF O-RINGEssential casing seal. Add one to your basket. |
📜 Model Fitment
Confirmed Matches: Fits GD250N and GD250R Exiv singles up to 2020. Also matches RT125D and RX125 carburettor models across all production years.
This cap set will not fit the modern GV125S Bobber, GV300, or any of the larger V-twin GT engine series. Check your crankcase design before buying.
Single-cylinder engine setups vibrate more than twin-cylinder units, increasing the risk of standard fasteners backing out. Upgrading to our high-strength **Magnetic Sump Bolt** adds extra safety while catching microscopic wear particles before they reach your oil filter. View the upgrade here.
🔧 Service Tips for Singles
- Warming Helps Fluid Flow: Always warm your engine metal slightly before dropping the oil. Warmer oil thins out and carries more suspended contaminants out of the crankcase channels.
- Never Reuse Flat Seals: This core metal set does not include the flexible rubber seal ring. Reusing a crushed or flattened old O-ring is the leading cause of persistent underside drips.
- Torque Down Carefully: The engine oil pan casting is a soft alloy blend. Always track your tension using manual tools to avoid stripping out the internal thread tracks in the block.
If you want to confirm your sump plug thread diameter or need advice on removing a stuck factory filter mesh, For maintenance advice, oil capacity tables, or support, head to the forums.
Additional information
| Weight | 0.6 kg |
|---|---|
| Dimensions | 20 × 20 × 3 cm |
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Independent Shop supplying ride enhancements and quality spares with fast dispatch. Need assistance? Access our workshop guides, manuals, tutorials or drop by the forums for troubleshooting help.
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