WISECO PISTON PK1401 Kit 193564154156 77.00MM 12.5 WR250F/YZ250F 4-STROKE

( Brand: Wiseco Piston ), ( Manufacturer Part Number: PK1401 ), ( Warranty Details: See Manufacturer ), ( UPC: 193564154156 )

Review WISECO PISTON Kit 77.00mm 12.5 #pk1401 Fits Yamaha Wr250f/yz250f 4-stroke fits WR250F YZ250F

The WiseCO Piston Kit 193564154156 is a high-performance replacement solution for the piston on Yamaha WR250F and YZ250F motorcycles. This piston is designed specifically for 4-stroke engines with a bore size of 77.00mm and a stroke length of 12.5mm. The piston kit includes 14 pieces, ensuring that you have all the necessary components for a complete replacement.

The piston is made from forged aluminum alloy, ensuring superior strength and durability. The piston crown features a compression height of 40.5mm and a total height of 68.5mm, providing optimal engine performance. The piston skirt is designed with a thin-walled, oil-cooled design to effectively dissipate heat and reduce friction, leading to improved engine efficiency.

The piston rings included in this kit are made of high-quality, heat-resistant materials. The compression ring is designed to seal the combustion chamber effectively, while the oil control ring ensures proper oil control and prevention of oil consumption. The piston rings are also designed to minimize friction and wear, ensuring long-lasting performance.

The piston kit also includes a piston pin, piston pin bushings, and piston pin retaining clips. These components are all made from high-quality materials and are precisely machined to ensure a perfect fit and optimal performance.

The WiseCO Piston Kit 193564154156 is specifically designed to fit Yamaha WR250F and YZ250F motorcycles, ensuring a direct replacement with no need for modification. This kit is an excellent choice for riders who are looking to improve the performance of their motorcycle engine, or for those who need to replace a worn-out or damaged piston. With its high-quality components, precise machining, and direct fitment, this piston kit is an excellent value for the price.

Wiseco Piston Kit (193564154156) for Yamaha WR250F/YZ250F: A Comprehensive Analysis

The Wiseco Piston Kit 193564154156, designed for the Yamaha WR250F and YZ250F with a 77.0mm bore and a 12.5:1 compression ratio (PK1401), is a popular upgrade among motorcycle enthusiasts. Let's delve into the pros and cons of investing in this piston kit.

1. Enhanced Power and Performance: The Wiseco piston kit is designed to deliver increased power and torque, improving the overall performance of your motorcycle.

2. High-Quality Materials: Wiseco pistons are made of forged aluminum alloy, ensuring superior strength and durability.

3. Improved Engine Efficiency: The piston kit can enhance the fuel efficiency of your engine, resulting in better mileage.

4. Enhanced Longevity: The piston kit is known for its long-lasting performance, which can save you money in the long run.

5. Customizable: The piston kit is available in various bore sizes and compression ratios, allowing you to tailor the performance of your engine to your specific needs.

1. Cost: The Wiseco piston kit is relatively expensive compared to OEM pistons.

2. Complex Installation: Installing the piston kit requires specialized knowledge and tools, which may necessitate hiring a professional.

3. Potential Impact on Emissions: Increased power output may result in higher exhaust emissions, which could be a concern for some riders.

4. Noise Levels: The piston kit might produce more noise than stock pistons, which some riders may find bothersome.

The Wiseco Piston Kit 193564154156 offers significant advantages in terms of power, performance, and durability. However, it comes with a higher price tag and a complex installation process. If you're primarily concerned with cost or ease of installation, you might prefer an OEM piston. However, if you're looking to maximize the performance of your Yamaha WR250F or YZ250F, the Wiseco piston kit is a worthwhile investment.

If you're an experienced motorcycle enthusiast with the necessary tools and knowledge, the Wiseco Piston Kit 193564154156 is an excellent choice for enhancing the power and performance of your Yamaha WR250F or YZ250F. For those who lack the expertise or resources for installation, it might be more practical to consider an OEM piston or seek professional assistance.

Details:

Maximum compression and oil control. Pressure seal groove. Race-Ready dome finish. Light weight and superior strength.

Reduced friction/scuff resistant. Maximum ring seal. Improved flame travel. Horizontal slot pin oiling.

Chrome plated Piston pin. Skirt coated Armor Glide. Smooth edges for improved combustion flow. Note: All kits cover a single cylinder only.

part #: pk1401 prices

• $268.96-$299.95

specifications pistondon:

• for models: Wr250f, Yz250f
• for makes: Yamaha
• brand: Wiseco Piston
• mpn: Pk1401
• warranty details: See Manufacturer
• upc: 193564154156

general Pistondon:

• condition: New
• Motorcycle Scooter Parts Accessories > Engines Engine Parts > Pistons, Rings Piston Kits

offer Pistondon:

• options: Ship-to-home
• started: February 13, 2026
• availability: In Stock
• sold: 0
• quantity: 2

seller Pistondon:

• rating: 99.7%
• city: Grand Rapids, Michigan
• # reviews: 677012

returns Pistondon:

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

shipping Pistondon:

• transit: 4-7 Days
• carrier: UPS
• type: Fixed
• class: Standard
• service: UPS Ground
• cost: $0.00

payments Pistondon:

• wallet: Paypal
• other
• credit card: Discover

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