WISECO 890M06640 Piston Kit Standard 66.35MM

( Brand: Wiseco ), ( Manufacturer Part Number: 890M06640 ), ( Type: Engine ), ( Country/region Of Manufacture: United States ), ( California Prop 65 Warning: Cancer And Reproductive Harm Www.p65warnings.ca.gov ), ( Manufacturer Warranty: 1 Year Manufacturer Warranty ), ( Authorized Dealer: Yes ), ( Bore: 66.35mm ), ( Compatibility Disclaimer: Compatibility Chart Information Provided By ), ( Compression: Compression Not Available ), ( Height: 3.500 ), ( Legal Disclaimer: Your Local Laws Before Purchasing. ), ( Photo Disclaimer: For Reference Only, May Differ From Product, See Item Details. ), ( Sizing: Sizing Not Available ), ( Vehicletype: Offroad )

Review WISECO Piston Kit Standard Bore 66.35mm

The WiseCo 890M06640 Piston Kit is a high-performance upgrade for your motorcycle's engine, designed to deliver superior power and durability. This piston kit is specifically engineered for Harley-Davidson Touring models with 88 cubic inch engines, including the Road Glide, Street Glide, Electra Glide, and Ultra Limited.

Each piston in this kit is manufactured using a forged aluminum alloy construction. This process ensures a strong and consistent piston shape, which is essential for efficient combustion and reliable engine performance. The piston crowns are designed with a dish shape and a compression height of 66.35mm, which provides an optimal compression ratio for increased horsepower and torque.

The piston skirts are engineered with a full-length, high tensile, heat-treated, chrome molybdenum steel ring land. This design provides a strong and durable base for the piston rings, ensuring they maintain their sealing performance even under the most demanding riding conditions.

The piston pins are made from heat-treated, chrome molybdenum steel. They are precision machined to ensure a perfect fit in the piston and the connecting rod. The pins are also coated with a high-performance, low-friction, molybdenum disulfide (Moly) coating. This coating reduces friction and wear, leading to smoother engine operation and longer piston pin life.

The piston kit also includes new piston rings, which are made from a high-performance, low-friction, nitrided steel. The top ring is a compression ring, while the second ring is an oil control ring. The rings are precision machined to ensure a proper fit and sealing performance.

The WiseCo 890M06640 Piston Kit is a direct replacement for the original equipment pistons and rings on your Harley-Davidson Touring model. Installation is straightforward and can be done with common hand tools. This piston kit is an excellent choice for riders looking to improve their motorcycle's power and performance, while also ensuring long-lasting reliability.

Wiseco 890M06640 Piston Kit: A Detailed Analysis

The Wiseco 890M06640 piston kit is a popular aftermarket option for Honda's CRF450R motorcycles. This piston kit comes with several advantages and disadvantages that are essential to consider before making a purchase.

1. Enhanced Performance: The Wiseco piston kit is designed to provide better performance by allowing a higher compression ratio. This results in increased power output and improved engine efficiency.

2. Durability: The pistons in this kit are made from forged aluminum, ensuring superior strength and durability. They are also designed to reduce friction, which helps in reducing wear and tear on the engine.

3. Customization: The Wiseco piston kit offers various options for different compression ratios, allowing riders to tailor the engine to their specific riding style and track conditions.

4. Improved Thermal Efficiency: Wiseco pistons have a unique design that helps in improving thermal efficiency, which results in better fuel economy and reduced heat build-up.

1. Cost: The Wiseco piston kit is a more expensive option compared to OEM pistons. The price difference can be significant, making it an investment for serious racers or high-performance enthusiasts.

2. Installation Complexity: Installing a Wiseco piston kit requires a certain level of expertise and experience. It involves removing the engine from the motorcycle and disassembling several parts, which can be time-consuming and labor-intensive.

3. Potential Engine Damage: Installing the Wiseco piston kit incorrectly or using incorrectly sized pistons can result in engine damage. This risk is higher compared to installing OEM pistons due to the customization options available.

The Wiseco 890M06640 piston kit offers enhanced performance, durability, and customization options. However, it comes with a higher cost, installation complexity, and the potential risk of engine damage if not installed correctly.

If you are a serious racer or high-performance enthusiast looking for improved power output and engine efficiency, the Wiseco 890M06640 piston kit is an excellent investment. However, it is essential to ensure that the installation is carried out by an experienced professional to minimize the risks and maximize the benefits. For casual riders or those on a tight budget, the OEM piston kit may be a more suitable and cost-effective option.

Details:

250SC-R 19, All Wiseco Pistons are forged from high silicon, low expansion aluminum which offers superior strength, reduced weight, improved heat transfer, and longer life. Vehicle Fitment: 2017 2018 Sheri 250 SE-R, SE-R Factory, 2019 2022 Bore: 66.35mm. 250SE-R 14-16. Bore: 66.35mm, Compression: Compression Not Available, Sizing: Sizing SHERCO.

Diamond turned finish from one of the many CNC computer controlled turning centers guarantees you a perfect with no size variation.

part #: 890m06640 prices

• $89.99-$289.94

specifications pistondon:

• brand: Wiseco
• mpn: 890m06640
• type: Engine
• country/region of manufacture: United States
• california prop 65 warning: Cancer And Reproductive Harm Www.p65warnings.ca.gov
• manufacturer warranty: 1 Year Manufacturer Warranty
• authorized dealer: Yes
• bore: 66.35mm
• compatibility disclaimer: Compatibility Chart Information Provided By
• compression: Compression Not Available
• height: 3.500
• legal disclaimer: Your Local Laws Before Purchasing.
• photo disclaimer: For Reference Only, May Differ From Product, See Item Details.
• sizing: Sizing Not Available
• vehicletype: Offroad

seller pistondon:

• rating: 97.9%
• city: Cedar Park, Texas
• # reviews: 176132

returns pistondon:

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

offer pistondon:

• availability: In Stock
• quantity: 9
• options: Ship-to-home
• started: June 19, 2025
• sold: 0

payments pistondon:

• wallet: Paypal
• credit card: Diners-club
• other

shipping pistondon:

• transit: 5-8 Days
• cost: $0.00
• service: Expedited, Standard
• type: Fixed
• class: Expedited, Standard

general pistondon:

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

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