WISECO PK1237 Top End Piston Kit Compression 193564153845 13.1 77.00MM

( Brand: Wiseco ), ( Manufacturer Part Number: PK1237 ), ( UPC: 193564153845 ), ( C.a.r.b. Notice: Not Legal For Sale Or Use In California ), ( Bore Actual: 77.00mm ), ( Compression Ratio Actual: 13.1 ), ( Displacement: 250cc ), ( Stroke: 53.60mm ), ( Type: Piston Kit )

Review WISECO Top End Piston Kit 13.1 Compression 77.00mm Bore fits STD

The WiseCo 13.1 compression top end piston kit with part number 193564153845 is an essential upgrade for any engine seeking improved performance and durability. This piston kit is designed for applications where standard pistons may not meet the demands of increased power output and higher compression ratios.

Each piston in this kit is meticulously crafted from high-quality forged aluminum alloy. This material offers superior strength and reliability, enabling the pistons to withstand the rigors of high-performance operation. The pistons are further engineered with precise dimensions to ensure a perfect fit in your engine.

The WiseCo top end piston kit features a compression height of 77.00mm and a compression ratio of 13.1:1. These specifications make this kit an excellent choice for engines that require a boost in power and efficiency. The piston design also includes a domed piston crown that enhances combustion efficiency and promotes even fuel distribution.

Additionally, the piston kit includes new rings, rings carriers, and clips. These components are designed to work in harmony with the new pistons, ensuring optimal sealing and preventing any unwanted blow-by. The rings are made from low-friction materials that help minimize wear and prolong engine life.

The WiseCo 193564153845 top end piston kit 1237 is an ideal solution for engine builders, racers, and enthusiasts seeking maximum performance from their powerplant. With its high-quality materials, precise dimensions, and proven design, this piston kit is sure to deliver the power and reliability you've been looking for.

In summary, the WiseCo 13.1 compression top end piston kit with part number 193564153845 is a must-have upgrade for any engine demanding increased power and efficiency. The kit includes high-quality forged aluminum pistons, new rings, rings carriers, and clips, all designed to provide optimal performance and reliability. With a compression height of 77.00mm and a compression ratio of 13.1:1, this piston kit is an excellent choice for engines requiring a boost in power and efficiency.

Wiseco 13.1 Compression Top End Piston Kit (193564153845) - Pros, Cons, and Conclusion

The Wiseco 13.1 compression top end piston kit (193564153845) is a popular choice among engine builders and enthusiasts for high-performance applications. Let's examine the key advantages and disadvantages of this piston kit.

1. High Compression: The pistons are designed for a 13.1:1 compression ratio, which is beneficial for increased power and efficiency in high-performance engines.

2. Forged Construction: The pistons are forged from 2618-T6 aluminum alloy, ensuring strength and durability under extreme conditions.

3. Low Weight: The pistons' lightweight design contributes to reduced reciprocating mass and improved engine response.

4. Enhanced Ring Performance: Wiseco's patented ring design improves sealing and reduces friction, leading to better engine performance and longer ring life.

5. Wide Applicability: The piston kit is available for various engine sizes and configurations, making it a versatile choice for various applications.

1. Cost: The Wiseco piston kit is more expensive than stock or OEM pistons due to its high-performance design and materials.

2. Installation Complexity: Installing aftermarket pistons requires specialized tools and expertise, which can add to the overall cost and time investment.

3. Clearance Concerns: Ensuring proper clearance between pistons and other engine components is crucial for proper function and longevity.

4. Potential for Ring Damage: Improper installation or use of incorrect ring gaps can lead to ring damage or engine issues.

The Wiseco 13.1 compression top end piston kit (193564153845) offers significant benefits for high-performance applications, including increased power, efficiency, and durability. However, it comes with a higher cost, installation complexity, and potential risks. If you're building a high-performance engine and are willing to invest time, expertise, and resources, this piston kit is a solid choice. For those with more modest goals or limited resources, stock or OEM pistons may be a more suitable option.

If you're in the market for a high-performance piston kit and have the necessary expertise, tools, and resources, the Wiseco 13.1 compression top end piston kit (193564153845) is an excellent choice. However, consider carefully whether the benefits outweigh the costs and complexities before making your purchase. For less demanding applications, stock or OEM pistons may be a more cost-effective and simpler solution.

Details:

High Performance ring kit and alloy pin included with each piston for extended life sustained power. Labeling a product as being for Racing Only or Closed Course Competition is not sufficient it to be included under this classification. Ask a question at the bottom of. 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. 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. S677 - Piston Pin 16 x 40mm Non Chromed TW. It must be a competition vehicle and not used at any time on public highway.

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. PK1237: Includes The Following Components4842M07700 - KX250F '04-05/ Suez RMZ250 '04-06 13.1:1. These parts do not require approval as long they are used on public highways. Replacement Parts that have the same function and affect on emissions as they are replacing.

Some items are made to order and can have longer lead times; check the shipping details for an estimate. Wiseco complete top end Piston Kits are offered for nearly every popular motorcycle application. Check the shipping calculator for estimated costs. CW16 - 16mm Round Wire Locks Set of Two.

Competition or Racing Vehicle Parts that are used exclusively in competition on race only vehicles. 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. 7700YC - 77.00mm Ring Set .8 x 1.5mm. Slip on mufflers in applications whereby the catalyst is not contained original muffler an example of a replacement part.

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.

specifications pistondon:

• for models: Std
• brand: Wiseco
• mpn: Pk1237
• upc: 193564153845
• c.a.r.b. notice: Not Legal For Sale Or Use In California
• bore actual: 77.00mm
• compression ratio actual: 13.1
• displacement: 250cc
• stroke: 53.60mm
• type: Piston Kit

offer pistondon:

• quantity: 1
• options: Ship-to-home
• availability: In Stock
• started: January 24, 2026
• sold: 0

general pistondon:

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

shipping pistondon:

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

returns pistondon:

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

seller pistondon:

• # reviews: 108701
• city: Lebec, California
• rating: 99.8%

payments pistondon:

• credit card: Mastercard
• other
• wallet: Paypal

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