YAMAHA 22K-11610-21-00 Nos Wiseco Piston Kit Topend 47MM 4840M04700

( Manufacturer Part Number: 22K-11610-21-00 ), ( Assembly: Yes ), ( Type: Cylinder With Piston )

Review YAMAHA Nos Wiseco 47mm Piston Kit Topend fits TTR90 TTR90E STD 2003–2007

The Yamaha 2005 03-07 TTR90/TTR90E WiseCO STD 47mm Piston Kit is an essential upgrade for your Yamaha TTR90 or TTR90E dirt bike. This piston kit, part number 4840M04700, is specifically designed for the 2005 model year and is a direct replacement for the stock piston.

The WiseCO piston is a standard type, with a diameter of 47mm, and is ideal for riders seeking improved performance and durability from their engine. This piston kit includes only the piston itself and does not include connecting rods, crankshafts, or other internal engine parts.

The piston is made from high-quality forged aluminum, which ensures strength and reliability. The piston crown is designed with a dished shape to optimize combustion efficiency and power output. The piston skirt is also designed with a full-skirted profile to minimize friction and improve ring sealing for better engine performance and longer engine life.

Installing this piston kit is a straightforward process for experienced mechanics or professionals. It is important to note that installing a new piston kit requires the disassembly of the engine, and it is recommended to follow the manufacturer's instructions carefully to ensure proper installation and avoid damaging any engine components.

In conclusion, the Yamaha 2005 03-07 TTR90/TTR90E WiseCO STD 47mm Piston Kit is a high-performance upgrade for your dirt bike. With its strong and durable forged aluminum construction and optimized combustion efficiency, this piston kit will provide improved power and reliability to your engine. It is important to ensure that the piston is installed correctly and that all necessary engine components are in good working order before installing the new piston.

Pros and Cons of Buying a Yamaha TTR90/TTR90E Wiseco 47mm Piston Kit (2005-2007)

The Yamaha TTR90 and TTR90E are popular enduros known for their durability and versatility. If you're considering upgrading your bike's performance by investing in a new piston kit, this Wisecostd 47mm piston kit (part number 4840m04700) might be an option. Let's examine the potential advantages and disadvantages of purchasing this kit.

1. Enhanced Power: A larger piston kit can lead to increased power output, providing a more responsive and exhilarating riding experience.

2. Improved Durability: Wiseco is a reputable brand in the aftermarket motorcycle industry, and their piston kits are known for their high-quality materials and robust construction. This kit may offer extended engine life and better resistance to wear and tear.

3. Better Compatibility: This piston kit is specifically designed for the Yamaha TTR90 and TTR90E models, ensuring a perfect fit and optimal engine performance.

4. Customization: Upgrading your piston kit allows you to personalize your motorcycle and tailor its performance to your specific riding style and preferences.

1. Cost: A new piston kit can be an expensive investment, especially for budget-conscious riders. The cost of this kit might be a significant factor to consider.

2. Installation Complexity: Installing a new piston kit requires a certain level of mechanical expertise and specialized tools. If you're not comfortable working on your bike, it might be worth considering hiring a professional mechanic.

3. Potential Performance Variations: Depending on the specific conditions of your engine, the new piston kit might not yield the exact power gains you expect. Engine performance can be influenced by various factors such as engine condition, fuel quality, and riding style.

In conclusion, buying a Yamaha TTR90/TTR90E Wiseco 47mm piston kit (part number 4840m04700) can offer several benefits, including enhanced power, improved durability, better compatibility, and the ability to customize your motorcycle. However, it also comes with potential drawbacks such as cost, installation complexity, and potential performance variations.

Ultimately, the decision to purchase this kit depends on your individual needs, budget, and riding preferences. If you're looking for increased power, improved engine life, and the ability to customize your TTR90 or TTR90E, this piston kit might be a worthwhile investment. However, if the cost and installation complexity are major concerns, it may be worth considering other alternatives or postponing the upgrade for the time being.

If you decide to proceed with the purchase, make sure to follow the installation instructions carefully to ensure proper installation and optimal engine performance. Additionally, consider investing in a high-quality gasket set and engine oil to maximize the benefits of the new piston kit.

Details:

Never ran or installed. 2005 03-07 YAMAHA NOS TTR90 TTR90E WISECO STD 47MM PISTON KIT TOPEND 4840M047 New in box. Ready to install!, Removed From: 2005 Yamaha TTR90E, Please review all pictures assess the condition of item.

part #: 22k116102100 prices

• $124.75-$165.99

specifications cylindermotorcycleiz:

• for models: Ttr90, Ttr90e, Std
• for makes: Yamaha
• for years: 2003-2007
• mpn: 22k-11610-21-00
• assembly: Yes
• type: Cylinder With Piston

payments cylindermotorcycleiz:

• other
• wallet: Paypal
• credit card: Mastercard

offer cylindermotorcycleiz:

• quantity: 1
• availability: In Stock
• started: May 20, 2026
• options: Ship-to-home
• sold: 0

general cylindermotorcycleiz:

• Motorcycle Scooter Parts Accessories > Engines Engine Parts > Cylinder Heads
• condition: Used

seller cylindermotorcycleiz:

• # reviews: 4451
• rating: 99.9%
• city: Virginia Beach, Virginia

returns cylindermotorcycleiz:

• time: 30 Days
• policy: Returns Accepted
• paid by: Buyer

shipping cylindermotorcycleiz:

• service: UPS Ground
• carrier: UPS
• type: Fixed
• cost: $0.00
• class: Standard
• transit: 3-8 Days

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