Apico Engine Plug - EP-011 BLUE
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Product Information
Full details
The Apico Engine Plug is designed for motocross and enduro riders who demand increased durability and a professional aesthetic for their off-road machine. Crafted from aero-grade aluminium, this component serves as a robust upgrade over standard plastic OEM plugs, providing better resistance to engine pressure and heat. While it offers a significant improvement in build quality and visual appeal, users should note that they must source or reuse their existing OEM O-rings to ensure a proper, leak-free seal during installation.
All features
| Model Part Number | EP-011 BLUE |
|---|---|
| Brand | Apico |
Extended Product Information
FAQs
Does this plug include an O-ring?
No, the Apico Engine Plug is designed to be used with your existing OEM O-rings for optimal fitment.
Can I use this on a non-Yamaha bike?
This specific MPN (EP-011) is engineered for the listed Yamaha models; it may not fit other brands due to thread pitch and diameter differences.
Will the anodised blue finish scratch easily?
While the anodised coating is durable, it can be scratched by hard steel tools. We recommend using a well-fitting hex driver.
Which tool size should I use?
The plug is designed to accept both 6mm and 8mm hex keys, depending on the specific application port.
Is this part street legal?
The plug is a mechanical component and does not affect emissions, but always check local regulations regarding vehicle modifications.
Troubleshooting
Plug feels tight or difficult to seat
Back the plug out and ensure no debris is in the threads; ensure the O-ring is properly seated in the groove.
Visible oil seepage around the plug
Remove the plug and inspect the OEM O-ring for cracks or flattening; replace the O-ring if it no longer provides a firm seal.
Pros and Cons
Pros
- Significantly stronger than stock plastic OEM plugs
- Durable anodised finish prevents rust and wear
- Provides a distinct 'factory' racing appearance
- Fits a broad range of popular Yamaha YZ and WR models
- Easy to install with standard hand tools
Cons
- Does not include new O-rings (must reuse existing ones)
- Blue anodised finish may fade over long-term high-heat exposure
- Only compatible with specific Yamaha engine ports
Setup, Compatibility & Care
Compatibility
This plug is specifically compatible with the following Yamaha off-road models:
- YZ250F
- YZ450F
- WR250F
- WR450F
- YZ250FX
- YZ450FX
Installation
- Ensure the engine is cool before attempting to remove the existing plug.
- Clean the area around the plug port to prevent debris from entering the engine.
- Remove the old plug and carefully extract the OEM O-ring.
- Clean the O-ring and inspect for tears or hardening.
- Lubricate the O-ring with a small amount of clean engine oil and seat it onto the Apico Engine Plug.
- Tighten the plug by hand to avoid cross-threading, then use the appropriate 6mm or 8mm hex tool for final securing.
Care
Clean the plug with a non-corrosive degreaser during oil changes. Avoid using abrasive brushes that could scratch the anodised finish.