fits model: Yz450f, Yz250f. make: Yamaha. year: 2006–2009.

( Type: Subframe Mounting Hardware ), ( Machine Type: Dual Sport Motorcycle, Off-road Motorcycle, Street Motorcycle ), ( Color: Silver ), ( Material: Steel ), ( Placement On Vehicle: Rear ), ( Country Of Origin: Japan ), ( UPC: 901050815600 )
The **Yamaha 90105-08156-00** is a high-quality, precision-engineered set of **OEM replacement screws and bolts** specifically designed for Yamaha s **2006 2009 YZ450F and YZ250F dirt bikes**, ensuring a perfect fit for critical engine, frame, and suspension components. Crafted from **heat-treated alloy steel**, these fasteners are engineered to withstand extreme stress, high vibrations, and harsh off-road conditions, delivering uncompromising durability and reliability. Each screw and bolt in this set is meticulously machined to Yamaha s exact specifications, guaranteeing seamless compatibility with stock and aftermarket parts while maintaining the bike s structural integrity. The **zinc-plated finish** provides excellent corrosion resistance, protecting against moisture, dirt, and chemical exposure ideal for riders who push their machines to the limits in mud, sand, or wet terrain. Whether used for routine maintenance, frame repairs, or engine rebuilds, these fasteners eliminate the risk of loosening or stripping, ensuring consistent performance and safety. Perfect for mechanics, DIY enthusiasts, and Yamaha dealerships, this **universal-fit replacement set** is a cost-effective solution for restoring or upgrading your bike s original hardware without sacrificing quality.
### Pros and Cons of Buying Yamaha YZ450F/YZ250F Screws and Bolts (Part Number: 90105-08156-00, Model Years: 2006 2009)
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#### **Pros**
1. **OEM Quality and Fit**
The screws and bolts from Yamaha are original equipment manufacturer (OEM) parts, meaning they are designed specifically for the 2006 2009 YZ450F and YZ250F models. This ensures a precise fit, reducing the risk of misalignment or damage during installation. OEM parts are also manufactured to Yamaha s strict quality standards, which can improve reliability and longevity compared to aftermarket alternatives.
2. **Reliability and Durability**
Yamaha uses high-grade materials and precise machining for its fasteners, which helps prevent premature wear, loosening, or failure especially in high-stress applications like motorcycle engines. This can be particularly important for critical components like cylinder head bolts, crankshaft bolts, or clutch components, where failure could lead to serious mechanical issues.
3. **Compatibility with Stock and Modified Bikes**
These parts are compatible with both stock and lightly modified bikes, including those with aftermarket components that don t alter the bolt pattern or thread specifications. For example, if you re running a stock engine or a simple tune, these bolts will integrate seamlessly without requiring modifications.
4. **Ease of Installation**
Since these are genuine Yamaha parts, they come with clear labeling and often include instructions or torque specifications (if applicable). This can simplify the replacement process, especially for riders who prefer to avoid guesswork when servicing their bikes.
5. **Warranty Coverage**
If purchased directly from Yamaha or an authorized dealer, these parts may come with a warranty, providing peace of mind in case of defects. This is particularly useful for critical fasteners that could affect performance or safety.
6. **Consistency with Other OEM Components**
Using OEM fasteners ensures consistency with other parts in your bike, such as gaskets, seals, or bearings. This can help maintain optimal engine performance and reduce the risk of leaks or misalignments that might arise from mixing OEM and aftermarket parts.
7. **Resale Value**
If you ever sell or trade in your bike, having OEM fasteners in place can make the bike more appealing to buyers who prefer stock or minimally modified machines. It signals that the bike has been well-maintained with genuine parts.
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#### **Cons**
1. **Higher Cost**
OEM parts are typically more expensive than aftermarket alternatives. For example, a single cylinder head bolt or a set of clutch bolts from Yamaha may cost significantly more than equivalent parts from brands like A1, Race Tech, or other third-party manufacturers. This can be a drawback for riders on a tight budget or those who prioritize cost savings.
2. **Limited Availability**
While Yamaha parts are widely available through dealers and online retailers, some specific fasteners (especially older or less common ones) may be harder to find than aftermarket options. This could require ordering from specialty suppliers or waiting for stock, which may not be ideal for urgent repairs.
3. **Overkill for Minor Repairs**
For non-critical fasteners (e.g., fairing bolts, seat bolts, or minor trim components), OEM parts may not offer any meaningful advantage over aftermarket bolts, which are often just as durable and significantly cheaper. In such cases, spending extra on OEM parts may not be justified.
4. **Potential for Over-Torquing**
Some riders, especially those unfamiliar with proper torque specifications, may accidentally over-torque OEM bolts, leading to stripped threads or damaged components. While Yamaha provides torque values, improper handling can still occur, especially if the rider lacks experience or the right tools (e.g., a torque wrench).
5. **Environmental and Ethical Concerns**
Purchasing new OEM parts contributes to the production of additional components, which may have environmental implications (e.g., manufacturing waste, energy use). Some riders prefer to source used or refurbished parts to reduce their environmental footprint, though this is less common for fasteners.
6. **No Customization Options**
Unlike aftermarket fasteners, OEM parts do not offer customization options such as different thread coatings (e.g., zinc, cadmium, or black oxide), specialized treatments (e.g., heat-treated for high-stress applications), or unique designs. For riders looking to optimize performance or aesthetics, aftermarket alternatives may provide better flexibility.
7. **Potential for Counterfeit Parts**
When purchasing OEM parts from third-party sellers (e.g., eBay, Amazon, or unscrupulous dealers), there is a risk of receiving counterfeit or substandard replicas. While Yamaha s official dealers and authorized sellers minimize this risk, buyers should always verify the authenticity of parts, especially for high-value or critical components.
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#### **Conclusion**
The decision to buy Yamaha OEM screws and bolts (90105-08156-00) for your 2006 2009 YZ450F or YZ250F depends on your priorities. If you value **reliability, precision, and long-term durability** especially for critical components like engine fasteners OEM parts are an excellent choice. They offer peace of mind, consistency with your bike s other systems, and the assurance of a proper fit. Additionally, if you plan to sell or trade the bike later, OEM parts can enhance its appeal.
However, if **cost is a major concern** or you re replacing non-critical fasteners, aftermarket alternatives may be a more practical option. Aftermarket bolts are often just as durable, especially from reputable brands, and can save you money without compromising performance. The trade-off is that you ll need to ensure the aftermarket parts meet or exceed OEM specifications in terms of material quality and thread standards.
For most riders, **OEM fasteners are worth the investment for critical components** (e.g., cylinder head bolts, crankshaft bolts, or clutch components), while aftermarket parts can suffice for less critical areas (e.g., fairings, seat, or minor trim). Always verify the authenticity of parts, especially when buying from non-dealer sources, and follow manufacturer torque specifications to avoid damage.
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#### **Recommendation**
- **Buy OEM (Yamaha) for critical fasteners** (e.g., engine bolts, clutch components) where precision, reliability, and warranty coverage are important.
- **Consider aftermarket alternatives for non-critical fasteners** (e.g., fairing bolts, seat bolts) where cost savings are a priority, but ensure the aftermarket parts meet or exceed OEM standards.
- **Purchase from authorized Yamaha dealers or trusted online retailers** to avoid counterfeit parts and ensure authenticity.
- **Use a torque wrench** and follow Yamaha s torque specifications to prevent over-torquing, which can damage threads or components.
- **Check for used/refurbished options** if budget is a constraint, but prioritize quality and compatibility over cost savings for safety-critical parts.
Used part in good condition. 2007 YZ450F OEM Subframe Mounting Screws, Brand: Yamaha, 06-09 YZ450F, YZ250F, Includes any and all parts shown in the photos. See pictures for a detailed explanation of the condition. Part shows scratches and wear from normal use.