WISECO PK1594 Top End Piston Kit 193564152831 66.40MM

( Brand: Wiseco ), ( Manufacturer Part Number: PK1594 ), ( UPC: 193564152831 ), ( C.a.r.b. Notice: Not Legal For Sale Or Use In California ), ( Bore Actual: 66.40mm ), ( Bore Oversize: Std ), ( Displacement: 249cc ), ( Stroke: 72.00mm ), ( Type: Piston Kit )

Review WISECO Top End Piston Kit 66.40mm Bore Fits Honda fits CR250R STD 1997–2001

The WiseCo 193564152831 Top End Piston Kit is specifically designed for Honda CR250R motorcycles with a standard bore size of 66.40mm and a model year range of 97-01. This piston kit is an excellent choice for riders looking to upgrade their motorcycle's performance or for those in need of a replacement.

The piston kit includes high-quality components, including new pistons, rings, and pin. The pistons are made from forged aluminum alloy, ensuring superior strength and durability. The piston rings are made from a nitrided material, which provides excellent ring seal and reduces friction for improved engine performance. The pin is made from chrome molybdenum steel, ensuring a strong connection between the piston and the connecting rod.

The piston kit also includes new wrist pins and wrist pin bushings. The wrist pins are made from chrome molybdenum steel, and the bushings are made from a high-quality material that ensures a snug fit and minimizes engine noise.

The piston kit is designed to be a direct replacement for the original equipment, making installation straightforward. Each piston comes with a matching piston pin, and the kit includes all necessary hardware for installation. The piston kit also includes new gaskets, making it a complete top end rebuild kit.

Overall, the WiseCo 193564152831 Top End Piston Kit is an excellent value for Honda CR250R riders looking to improve their motorcycle's performance or replace worn-out components. With high-quality materials and a straightforward installation process, this piston kit is a smart investment for any CR250R owner.

Wiseco 193564152831 Top End Piston Kit for Honda CR250R: A Detailed Analysis

The Wiseco 193564152831 Top End Piston Kit, designed for the Honda CR250R model years 97-01 with a 66.40mm bore, is a popular aftermarket upgrade among motocross enthusiasts. Let's delve into the pros and cons of investing in this product, followed by an Recommendation.

1. Enhanced Performance: The Wiseco piston kit is designed to provide increased power and torque. This can lead to improved acceleration and overall performance on the track or trail.

2. Durability: Wiseco is known for their high-quality pistons, which are engineered for long-term durability. This kit may help reduce the likelihood of piston failure, extending the life of the engine.

3. Customizability: The kit is available in various dome shapes and compressions, allowing riders to tailor the kit to their specific riding style and engine modifications.

4. OEM-like Fitment: The piston kit's close tolerances to OEM specifications ensures a smooth installation process and optimal engine operation.

1. Cost: The Wiseco piston kit is pricier compared to OEM alternatives. This may deter some budget-conscious riders from considering the upgrade.

2. Complex Installation: Installing the piston kit requires a high level of mechanical expertise. This can be a significant challenge for those without the necessary skills or resources.

3. Potential Power Increase: While some riders may appreciate the additional power, others may find it to be too much for their skill level or riding conditions.

The Wiseco 193564152831 Top End Piston Kit offers several benefits for Honda CR250R owners, including performance enhancements, durability, and customizability. However, it comes with a higher price tag and a complex installation process. Ultimately, the decision to purchase this kit depends on an individual's budget, mechanical abilities, and desired riding experience.

If you are an experienced rider looking for a significant performance boost, have the necessary mechanical skills, and are willing to invest in a high-quality piston kit, the Wiseco 193564152831 Top End Piston Kit for the Honda CR250R is an excellent choice. However, if you are budget-conscious or lack the mechanical expertise for installation, it may be prudent to consider other options or seek professional assistance.

Details:

Ask a question at the bottom of. Check the shipping calculator for estimated costs. It must be a competition vehicle and not used at any time on public highway. CW18 - 18mm Round Wire Locks Set of Two.

High Performance ring kit and alloy pin included with each piston for extended life sustained power. B1003 - Top End Bearing 18 x 22 21.8mm. Replacement Parts that have the same function and affect on emissions as they are replacing. This means that if a vehicle was not originally equipped with catalyst and all other emissions related controls were connected such as oxygen sensors are reconnected, then the part is considered Replacement Part.

If the vehicle has a catalyst and installation of part does not remove catalyst, all other emissions related controls are reconnected, then this is considered replacement. Each piston is built from race proven designs that are chosen by the top teams in all forms of racing including Supergrass, Motocross, GNCC, Super bike, and more. Wiseco complete top end Piston Kits are offered for nearly every popular motorcycle application. Competition or Racing Vehicle Parts that are used exclusively in competition on race only vehicles.

PK1594: Includes The Following Components2614CS - 66.40mm Ring. EO number and will arrive with appropriate labels to indicate the approved status. Modified Parts that alter the emissions control related performance from original part they are replacing, These may have catalysts in them but perform differently equipment or require alteration elimination of other components such as oxygen sensors. Slip on mufflers in applications whereby the catalyst is not contained original muffler an example of a replacement part.

These parts do not require approval as long they are used on public highways. Some items are made to order and can have longer lead times; check the shipping details for an estimate. Full exhaust systems installed on vehicles that did not originally contain a catalyst and whereby the design allows re installation original function of any other emissions control related components are also considered replacement parts. Labeling a product as being for Racing Only or Closed Course Competition is not sufficient it to be included under this classification.

768M06640 - Hon CR250R'97-01/Hus CR/WR'98-13 2614CS.

specifications pistondon:

• for models: Cr250r, Std
• for makes: Honda
• for years: 1997-2001
• brand: Wiseco
• mpn: Pk1594
• upc: 193564152831
• c.a.r.b. notice: Not Legal For Sale Or Use In California
• bore actual: 66.40mm
• bore oversize: Std
• displacement: 249cc
• stroke: 72.00mm
• type: Piston Kit

seller pistondon:

• city: Lebec, California
• rating: 99.8%
• # reviews: 108691

offer pistondon:

• started: January 24, 2026
• quantity: 2
• availability: In Stock
• sold: 0
• options: Ship-to-home

general pistondon:

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

payments pistondon:

• other
• wallet: Google-pay
• credit card: Visa

returns pistondon:

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

shipping pistondon:

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

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