WISECO ORWI-CO424089-ON Piston Bike 71MM

( Brand: Wiseco ), ( Manufacturer Part Number: ORWI-CO424089-ON ), ( Part Type: Piston )

Review WISECO Kawasaki Dirt Bike Piston 71mm fits KX250 1985–1986

Introducing the WISCO ORWI-CO424089-ON piston, specifically designed for the 1985-1986 Kawasaki KX250 motorcycle. This high-performance piston is an excellent replacement for worn-out or damaged parts.

The piston features a compression height of 32.5mm and a total height of 71mm, making it an ideal fit for the KX250's engine. The crown design is optimized to ensure maximum combustion efficiency and power output, while the skirt is engineered for superior strength and durability.

The piston's ring grooves are precision-machined to ensure proper ring fit and sealing. The piston rings (sold separately) are crucial for preventing engine oil from leaking into the combustion chamber and compressing the air-fuel mixture.

The piston's top ring groove is designed for a 0.8mm compression ring, while the second groove accommodates a 0.5mm oil control ring. The piston's skirt is designed to work with a 0.4mm piston pin, which is included with the piston kit (sold separately).

The piston is made of forged aluminum alloy, ensuring both strength and lightweight properties. The material's high thermal conductivity helps dissipate heat, reducing the risk of engine damage caused by overheating.

Installing the piston is a straightforward process, but it requires proper tools and experience to ensure a safe and accurate fit. It is important to follow the manufacturer's instructions carefully and to consult a professional mechanic if you are unsure about any steps in the installation process.

In summary, the WISCO ORWI-CO424089-ON piston is a high-quality replacement part for the 1985-1986 Kawasaki KX250 motorcycle. Its optimized design ensures maximum power output, while its forged aluminum alloy construction guarantees both strength and lightweight properties. With proper installation, this piston will help keep your KX250 running at its best.

Wiseco WI-CO424089-ON 1985-1986 Kawasaki KX250 Bike Piston: A Detailed Analysis

The Wiseco WI-CO424089-ON piston is a popular aftermarket option for the 1985-1986 Kawasaki KX250 motorcycles. This piston offers several advantages over the stock piston. In this analysis, we will discuss the pros and cons of purchasing this piston.

1. Enhanced Performance: The Wiseco piston is designed to provide better performance than the stock piston. It offers increased compression ratio, resulting in better power delivery and increased horsepower.

2. Durability: The piston is made from high-quality materials, ensuring longer lasting performance compared to the stock piston. Wiseco uses its proprietary forging process to create a stronger and more durable piston.

3. Reduced Weight: The Wiseco piston is lighter than the stock piston, which can help improve engine response and overall performance.

1. Cost: The Wiseco piston is more expensive than the stock piston. This can be a significant investment for some riders.

2. Installation Complexity: Installing the Wiseco piston can be a more complex process than installing a stock piston. It may require specialized tools and skills, which could add to the overall cost and time investment.

The Wiseco WI-CO424089-ON piston is an excellent choice for riders who want to improve the performance of their 1985-1986 Kawasaki KX250 motorcycle. The piston offers enhanced durability, improved performance, and reduced weight compared to the stock piston. However, the increased cost and installation complexity are important considerations. Ultimately, if you are looking to get the most out of your KX250 and are willing to invest in a high-quality aftermarket piston, the Wiseco WI-CO424089-ON piston is a solid choice.

If you are considering purchasing the Wiseco WI-CO424089-ON piston for your 1985-1986 Kawasaki KX250 motorcycle, make sure you are prepared for the increased cost and installation complexity. Consider seeking out the assistance of a professional mechanic to ensure the installation is done correctly. Additionally, be sure to follow all necessary safety precautions when installing the piston. Overall, the benefits of the Wiseco piston in terms of improved performance and durability make it a worthwhile investment for serious KX250 riders.

Details:

Credit or Debit Card. All Wiseco 4 cycle pistons come complete with rings, wrist pins and cir clips. This is helpful if you are buying multiple items. All Wiseco 2 cycle pistons are supplied with rings and cir clips.

Only Wiseco replacement ring sets can be used on pistons. I need to exchange an item. Parts without fitment are to be assumed universal and may require vehicle modification. 1985 1986 Kawasaki KX250 Dirt Bike Wiseco Piston 71mm: Compatibility: KX250, Notes: Electrocution Bore - Cylinder sleeking or replanting required for oversized, Size: 71mm.

Wiseco 2 cycle pistons are not supplied with a wrist pin unless noted in the .

part #: orwico424089 prices

• $175.85-$262.99

specifications pistondon:

• for models: Kx250
• for makes: Kawasaki
• for years: 1985-1986
• brand: Wiseco
• mpn: Orwi-co424089-on
• part type: Piston

seller pistondon:

• rating: 99.9%
• # reviews: 74942
• city: Indiana, US

offer pistondon:

• sold: 0
• quantity: 2
• availability: In Stock
• started: January 14, 2026
• options: Ship-to-home

payments pistondon:

• wallet: Paypal
• credit card: Mastercard
• other

returns pistondon:

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

shipping pistondon:

• service: Standard
• type: Fixed
• transit: 2-7 Days
• class: Standard
• cost: $0.00

general pistondon:

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

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