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  3. YAMAHA 5UP-11400-10-00

YAMAHA 5UP-11400-10-00 Crankshaft Piston Kit

fits model: Yz250, Yz250x. make: Yamaha. year: 2005–2020.

5up-11400-10-00 Yamaha Yz250 Crankshaft And Piston Kit Fits 2005-2020 Yz250x

( Manufacturer Part Number: 5UP-11400-10-00 ), ( Part Type: Crankshaft Piston ), ( Country/region Of Manufacture: Japan )

Review YAMAHA Crankshaft And Piston Kit Fits fits YZ250 YZ250X 2005–2020

The Yamaha YZ250 X Crankshaft Piston Kit, part number 5UP-11400-10-00, is a comprehensive replacement solution for the internal engine components of the Yamaha YZ250 X motorcycle model, produced between 2005 and 2020. This kit includes both the crankshaft and piston assemblies, ensuring a complete and efficient engine overhaul.

The crankshaft, a vital engine component, is a forged steel piece designed to efficiently transfer power from the engine to the transmission. It features a precision-machined surface for optimal engine balance and a snug fit within the engine case. Its design allows for a smooth power delivery and increased durability.

The piston, accompanying the crankshaft, is a high-performance, forged aluminum unit engineered for exceptional strength and efficiency. It boasts a unique design with a compression height that optimizes engine performance and power output. The piston also includes a lightweight skirt that minimizes frictional losses and contributes to the engine's overall efficiency. The top ring groove is precision machined to ensure a proper seal with the piston rings.

Both components are designed to meet or exceed OEM specifications to ensure a seamless installation and optimal engine performance. These upgraded parts are perfect for riders seeking improved power, durability, and longevity for their Yamaha YZ250 X motorcycles. Installing this kit can lead to increased horsepower, smoother engine operation, and overall engine longevity.

Pros and Cons of Buying Yamaha YZ250 Crankshaft Piston Kit (5UP-11400-10-00) for 2005-2020 YZ250x

Introduction:

The Yamaha YZ250 is a popular dirt bike model known for its high performance and durability. Over time, components like the crankshaft and piston may need replacement. Here's a breakdown of the pros and cons of buying a 5UP-11400-10-00 Yamaha YZ250 crankshaft piston kit for 2005-2020 YZ250x models.

Pros:

1. Improved engine performance: A new crankshaft and piston kit can result in improved engine performance, including increased horsepower and torque.

2. Extended engine life: Replacing worn-out components with new ones can extend the life of the engine and prevent potential damage.

3. OEM (Original Equipment Manufacturer) parts: The kit includes genuine Yamaha parts, ensuring a proper fit and reliable operation.

4. Peace of mind: By using OEM parts, you can have confidence that your bike is safe and performing optimally.

5. Availability: The kit is readily available from Yamaha dealers and online retailers.

Cons:

1. Cost: The price of the kit may be high compared to aftermarket alternatives or used parts.

2. Installation complexity: Installing the new crankshaft and piston requires specialized tools and expertise, adding to the cost and time.

3. Potential for hidden damages: Replacing the crankshaft and piston may reveal other hidden damages or worn components that will require additional repair costs.

Conclusion:

The decision to buy the Yamaha 5UP-11400-10-00 YZ250 crankshaft piston kit for 2005-2020 YZ250x models depends on various factors, such as your budget, the condition of your bike, and your personal preferences. While the kit offers improved engine performance, extended engine life, and peace of mind, it comes with a high cost and potential for hidden damages. If you prioritize performance and reliability, the OEM kit is a solid choice. However, if you're looking for a more cost-effective option, consider aftermarket or used parts, but be aware of potential compatibility issues and reduced warranty coverage.

Recommendation:

If you're planning to keep your Yamaha YZ250 for an extended period or use it extensively, investing in the OEM crankshaft piston kit is a wise decision for optimal performance and engine longevity. However, if you're on a tight budget or prefer a more cost-effective solution, research reliable aftermarket brands and carefully consider the potential trade-offs. Ultimately, consult with a qualified mechanic or Yamaha dealer to help you make the best decision for your specific situation.

Details:

1 Crankshaft, 2 Main Bearings and seals, Forged Piston 66.37mm, Cast Rasping Bearing, Wrist pin, ring set, Missing Wrist pin Cir clips Brand new Kolyma Racing Solutions YZ250 Crankshaft Kit fits 2005 2019 YZ250x engines. Includes a free spare 66.37mm Cast Piston.

part #: 5up114001000 prices

  • $169.99-$373.99

specifications motoralph:

  • for models: Yz250, Yz250x
  • for makes: Yamaha
  • for years: 2005-2020
  • mpn: 5up-11400-10-00
  • part type: Crankshaft Piston
  • country/region of manufacture: Japan

payments motoralph:

  • credit card: Discover
  • wallet: Paypal
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general motoralph:

  • Motors > Parts Accessories > Other
  • condition: New other see details

offer motoralph:

  • options: Ship-to-home
  • best offers: True
  • quantity: 1
  • sold: 0
  • started: July 28, 2025
  • availability: In Stock

returns motoralph:

  • policy: No Returns

seller motoralph:

  • city: Jacksonville, North Carolina
  • rating: 100.0%
  • # reviews: 34

shipping motoralph:

  • cost: $22.04
  • type: Calculated
  • transit: 3-8 Days
  • carrier: UPS
  • class: Standard
  • service: UPS Ground
for models: yz250, yz250x, for makes: yamaha, for years: 2005-2020, part type: crankshaft piston, country/region of manufacture: japan,
sku: 9515334283876761,

Yamaha 5UP-11400-10-00 Is Similar To:

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5 offers $169.99–$373.99 USD
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  • Offer #5: $249.95 price + $0.00 shipping estimate = $249.95* total. Direct Replacement for the Following OEM Part Numbers: , 5UP-11400-00-00Fits The Following OEM Models:Yamaha YZ250X: 2016-2024Yamaha YZ250 Monster Energy Yamaha Racing Edition: 2022-2023Yamaha YZ250 50th Anniversary Edition: 2024Yamaha YZ250: 2003-2024.FREE SHIPPING

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