WISECO 4939M08500 Piston Kit 193564126337 85MM

( Brand: Wiseco ), ( Manufacturer Part Number: 4939M08500 ), ( UPC: 193564126337 ), ( C.a.r.b. Notice: Not Legal For Sale Or Use In California ), ( California Prop 65 Warning: Cancer And Reproductive Harm Https ), ( Type: Piston Kit )

Review WISECO Piston Kit 85mm fits 2011

WiseCo 4939M08500 Piston Kit - 85mm Bore Size for High-Performance Applications

The WiseCo 4939M08500 piston kit is a premium aftermarket solution designed for high-performance applications in engines with an 85mm bore size. This piston kit is a perfect upgrade for enthusiasts seeking improved power output, increased efficiency, and enhanced engine durability.

Each piston in this kit is meticulously crafted from forged 2618-T6 aluminum alloy, ensuring superior strength and rigidity. The piston crown is CNC-machined with a dished shape and a compression height of 26.5mm, optimized for high-compression applications. The piston skirts feature a full-floating design, minimizing friction and allowing for smooth engine operation.

The piston kit comes with matching WiseCo 4939M08500 connecting rods, engineered to provide optimal balance and strength for the larger pistons. The rods are forged from 4340 chromoly steel, ensuring durability even under the most demanding conditions.

The piston kit is also designed to work seamlessly with your engine's existing rings, thanks to the piston-to-wall clearance that is optimized for most factory-installed ring sets. However, if you are planning on using aftermarket rings, WiseCo recommends consulting their technical team to ensure proper clearance and compatibility.

The WiseCo 4939M08500 piston kit is an excellent choice for those looking to extract more power from their engine while maintaining or even improving its reliability. Its high-quality materials, precise machining, and thoughtful design make it an ideal upgrade for high-performance applications.

This piston kit is backed by WiseCo's commitment to quality and customer satisfaction. It comes with a comprehensive installation guide and technical support is available should you have any questions or concerns during the installation process. Upgrade your engine today with the WiseCo 4939M08500 piston kit and experience the difference in power and efficiency.

Wiseco 4939M08500 Piston Kit (85mm): A Detailed Analysis

The Wiseco 4939M08500 piston kit, with a bore size of 85mm, is a popular upgrade option for high-performance applications. In this analysis, we'll discuss the essential pros and cons to help you make an informed decision.

1. Enhanced Performance: Wiseco pistons are known for their superior strength and durability. This piston kit can improve your engine's power output and efficiency.

2. Customizable: This kit is available in various materials (aluminum, forged, etc.) and designs, allowing you to tailor the pistons to your specific engine requirements and performance goals.

3. Improved Ring performance: The piston kit comes with top-quality rings designed to minimize friction and improve ring sealing.

4. Heat Resistance: Wiseco pistons are engineered to handle high temperatures, which can contribute to increased horsepower and overall engine performance.

1. Cost: Upgrading to a Wiseco piston kit can be quite expensive compared to stock pistons. The price may be a significant factor for some enthusiasts.

2. Complex Installation: Installing a piston kit requires a high level of mechanical expertise and specialized tools. It's recommended to have the installation done by a professional to ensure proper fitment and performance.

3. Potential Clearance Issues: Depending on the engine configuration, clearance issues between the piston and other engine components may arise during installation. Careful measurement and possible modifications may be necessary.

The Wiseco 4939M08500 piston kit offers significant performance gains for high-performance applications. However, the high cost and complex installation process may deter some enthusiasts. If you're looking to maximize the power output of your engine and have the means to install the kit professionally, this piston kit could be an excellent investment.

If you're in the market for a high-performance piston kit and are willing to invest in the upgrade, the Wiseco 4939M08500 piston kit is an excellent choice. Be sure to consult with a professional mechanic for installation and any necessary modifications to ensure optimal performance and longevity.

Details:

4939M08500: Piston Kit - 0.50mm, All Wiseco Pistons are forged from high silicon, low expansion aluminum which offers superior strength, reduced weight, improved heat transfer, and longer life. 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. These parts do not require approval as long they are used on public highways

Check the shipping calculator for estimated costs. It must be a competition vehicle and not used at any time on public highway. Ask a question at the bottom of. Labeling a product as being for Racing Only or Closed Course Competition is not sufficient it to be included under this classification.

ATV / XS 09-10 Yamaha YFM450FX Wolverine Auto 4x4 450 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. Slip on mufflers in applications whereby the catalyst is not contained original muffler an example of a replacement part. ATV / XS 06-08 Yamaha YFM450FX Wolverine 4x4 450 1.

EO number and will arrive with appropriate labels to indicate the approved status. Diamond turned finish from one of the many CNC computer controlled turning centers guarantees you a perfect with no size variation. 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. Some items are made to order and can have longer lead times; check the shipping details for an estimate.

Competition or Racing Vehicle Parts that are used exclusively in competition on race only vehicles. Replacement Parts that have the same function and affect on emissions as they are replacing. 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.

part #: 4939m08500 prices

• $159.99-$232.95

specifications pistondon:

• for years: 2011
• brand: Wiseco
• mpn: 4939m08500
• upc: 193564126337
• c.a.r.b. notice: Not Legal For Sale Or Use In California
• california prop 65 warning: Cancer And Reproductive Harm Https
• type: Piston Kit

returns pistondon:

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

seller pistondon:

• # reviews: 108716
• city: Lebec, California
• rating: 99.8%

shipping pistondon:

• class: Standard
• cost: $0.00
• service: Standard
• type: Fixed
• transit: 3-7 Days

payments pistondon:

• other
• credit card: Visa
• wallet: Paypal

general pistondon:

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

offer pistondon:

• options: Ship-to-home
• quantity: 9
• started: January 26, 2026
• sold: 0
• availability: In Stock

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