WISECO ORWI-CO425727-ON Piston Bike 87MM

( Brand: Wiseco ), ( Manufacturer Part Number: ORWI-CO425727-ON ), ( Part Type: Piston )

Review WISECO Yamaha Dirt Bike Piston 87mm fits YZ490 1982

WISCO ORWI-CO425727-ON 87mm Replacement Piston for 1982 Yamaha YZ490 Motorcycle

Introducing the WISCO ORWI-CO425727-ON 87mm replacement piston, specifically designed for the 1982 Yamaha YZ490 motorcycle. This piston is a high-quality aftermarket solution for those in need of a piston replacement.

The WISCO piston is manufactured using advanced techniques and materials to ensure superior durability and performance. It features an 87mm bore size, making it an exact fit for the 1982 Yamaha YZ490 engine. The piston crown is designed with a optimized compression height and shape to provide maximum power and efficiency.

This piston comes with a ring pack that includes a compression ring, oil control ring, and skirt oil scraper ring. The rings are made from high-quality materials that are designed to provide excellent sealing and longevity. The skirt of the piston is designed with a full floating pin for minimal friction and reduced wear.

The WISCO ORWI-CO425727-ON piston is precision machined to ensure a perfect fit and finish. It is also balanced to reduce vibration and ensure smooth engine operation. The piston is coated with a thermal barrier coating to protect against detonation and provide improved heat resistance.

Installation of the WISCO piston is straightforward and can be completed with common hand tools. The piston comes with all necessary hardware, including a piston pin, piston pin bushing, and piston pin retaining clip. It also includes a gasket to ensure a proper seal between the piston and engine block.

In conclusion, the WISCO ORWI-CO425727-ON 87mm replacement piston is a high-quality aftermarket solution for the 1982 Yamaha YZ490 motorcycle. It is manufactured using advanced techniques and materials to ensure superior durability and performance. The piston comes with a ring pack and all necessary hardware for easy installation. With its precise fit, excellent sealing, and improved heat resistance, this piston is the ideal choice for those in need of a piston replacement for their 1982 Yamaha YZ490 motorcycle.

Wiseco WI-CO425727-ON 1982 Yamaha YZ490 Bike Piston (87mm): Pros, Cons, and Conclusion

The Wiseco WI-CO425727-ON is a high-performance aftermarket piston designed for the 1982 Yamaha YZ490 motorcycle. This piston offers an 87mm bore size, aiming to enhance power output and engine response. In this analysis, we will discuss the pros, cons, and a concluding recommendation.

1. Enhanced Power: The Wiseco piston is designed to provide improved power and torque, making it a popular choice among racers and performance enthusiasts. The increased bore size allows for more fuel and air mixture to be compressed during the combustion process, resulting in more power.

2. Improved Engine Response: With the Wiseco piston's lightweight design, the engine responds quicker, providing better acceleration and overall performance. This is beneficial for racing applications where quick throttle response is crucial.

3. High-Quality Material: The piston is manufactured using high-quality materials, ensuring durability and reliability. Wiseco uses a proprietary forging process and advanced coating technologies to produce pistons that can withstand the rigors of high-performance use.

1. Cost: Aftermarket performance pistons like the Wiseco WI-CO425727-ON can be quite expensive compared to stock OEM pistons. This may not be suitable for budget-conscious riders or those who do not require the additional power and performance.

2. Installation Complexity: Installing a high-performance aftermarket piston like the Wiseco WI-CO425727-ON can be a complex process that requires specialized tools and expertise. It is recommended to have the installation performed by a professional mechanic to ensure proper fitment and function.

3. Potential Engine Modifications: To fully realize the potential benefits of the Wiseco piston, additional engine modifications may be required. This could include upgraded camshafts, cylinder head work, or fuel system modifications. These modifications can add to the overall cost and complexity of the project.

The Wiseco WI-CO425727-ON 1982 Yamaha YZ490 Bike Piston (87mm) is a high-performance aftermarket piston that offers numerous benefits, including increased power, improved engine response, and high-quality materials. However, it also comes with potential drawbacks, such as a high cost, installation complexity, and the need for additional engine modifications.

Based on the analysis, it is recommended that this piston is a suitable choice for those who are serious about performance enhancements for their 1982 Yamaha YZ490 motorcycle. This could include racers, competition enthusiasts, or those who desire maximum power output from their bike. For riders who are budget-conscious or do not require the additional performance, a stock OEM piston may be a more suitable and cost-effective option.

Details:

Credit or Debit Card. Parts without fitment are to be assumed universal and may require vehicle modification. 1982 Yamaha YZ490 Dirt Bike Wiseco Piston 87mm: Compatibility: YZ490, Size: 87mm. I need to exchange an item.

Brand: Wiseco, model Number: ORWI-CO425727-ON. This is helpful if you are buying multiple items.

part #: orwico425727 prices

• $219.99-$243.95

specifications pistondon:

• for models: Yz490
• for makes: Yamaha
• for years: 1982
• brand: Wiseco
• mpn: Orwi-co425727-on
• part type: Piston

shipping pistondon:

• cost: $0.00
• transit: 3-5 Days
• type: Fixed
• service: Standard
• class: Standard

general pistondon:

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

payments pistondon:

• wallet: Apple-pay
• credit card: Discover
• other

returns pistondon:

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

seller pistondon:

• city: Sparks, NV
• rating: 99.8%
• # reviews: 78333

offer pistondon:

• quantity: 3
• availability: In Stock
• options: Ship-to-home
• started: February 22, 2026
• sold: 0

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