WSM 50-311-04K Piston Kit Atv Utv Watercraft Pwc 0.25MM 92.25MM Atv/utv

( Brand: Wsm ), ( Manufacturer Part Number: 50-311-04K ), ( Part Type: Piston ), ( Make: Polaris )

Review WSM Piston Kit 0.25mm Oversize To 92.25mm Atv/utv Watercraft Pwc

The WSM 50-311-04K Piston Kit is a high-performance replacement option for ATV, UTV, and watercraft PWC engines with a cylinder bore measurement of 92.25mm and a piston compression height of 0.25mm. This piston kit is manufactured by WSM, a trusted name in the powersports industry, ensuring top-notch quality and reliability.

The piston itself is made from a durable, forged material for enhanced strength and durability. The piston crown is designed with a precise compressional shape to maximize power output and efficiency. The piston skirt is engineered for a snug fit within the engine cylinder, minimizing blowby and reducing power loss.

The piston kit also includes a set of rings, which are essential for sealing the combustion chamber and preventing the escape of combustion gases. The rings are precision-machined to ensure a perfect fit and optimal ring gap for efficient sealing. The kit includes a compression ring, an oil control ring, and a skirt oil scraper ring.

The piston pin is another critical component of the kit, designed to securely connect the piston to the connecting rod. The pin is made from high-strength material and is precision-machined for a perfect fit within the piston and connecting rod. The piston pin bushing is also included in the kit and is designed to minimize friction and wear for smooth engine operation.

The WSM 50-311-04K Piston Kit is an excellent choice for powersports enthusiasts looking to upgrade their engine performance or restore their ATV, UTV, or watercraft PWC to its original glory. With its high-quality components, precise engineering, and attention to detail, this piston kit is sure to provide reliable, efficient, and powerful performance for years to come.

WSM 50-311-04K Piston Kit for ATV/UTV Watercraft: A Detailed Analysis

The WSM 50-311-04K piston kit is a popular aftermarket upgrade for personal watercraft (PWC) owners. This kit comes with 0.25mm pistons and is suitable for ATV/UTV watercraft. In this analysis, we will discuss the pros and cons of buying this piston kit to help you make an informed decision.

1. Enhanced Performance: The 0.25mm thick pistons provide better compression and improved engine performance, leading to increased power and acceleration.

2. Durability: The piston kit is made of high-quality materials, ensuring long-lasting performance and resistance to wear and tear.

3. Customizability: This kit offers the flexibility to upgrade your watercraft's engine for better performance, making it an attractive option for enthusiasts.

4. Affordable: Compared to OEM (Original Equipment Manufacturer) piston kits, aftermarket options like the WSM 50-311-04K are often more affordable, providing excellent value for money.

1. Installation Complexity: Installing the piston kit requires expertise and experience, as it involves disassembling the engine and performing precise measurements and adjustments.

2. Risk of Damage: Improper installation or incorrect setup can lead to engine damage, potentially resulting in expensive repairs.

3. Compatibility: Ensure the piston kit is compatible with your specific watercraft model before purchasing, as using an incompatible kit can lead to engine issues.

The WSM 50-311-04K piston kit is an excellent choice for those seeking improved performance and durability for their ATV/UTV watercraft. However, it's crucial to consider the installation complexity and potential risks before making a purchase. If you have the necessary expertise or are willing to pay for professional installation, this piston kit can deliver significant performance gains at an affordable price.

If you're considering purchasing the WSM 50-311-04K piston kit, ensure you have the necessary skills and tools for the installation process. Alternatively, consider hiring a professional to install the kit to minimize the risk of damage. Always double-check the compatibility of the kit with your watercraft model before making a purchase.

Details:

Piston pin is 5mm higher on long rod pistons to accommodate. WSM, Piston Assembly, This item fits the following model's: Polaris Scrambler 500 4x4 2009, Polaris 2008, 2007, 2006, 2005, 2004, Sportsman 6x6 EFI 2006. Made in Germany. Ported to match WSM Banshee sleeves.

Competitively priced forged pistons. Bore: 92.25mm, Sizing: 0.25mm Oversize, Sold as: Kit. Any damage claims may be exchanged for the identical item only. Coated with MOS2 for high performance and heat absorption.

part #: 5031104k prices

• $107.85-$113.24

specifications pistondon:

• brand: Wsm
• mpn: 50-311-04k
• part type: Piston
• make: Polaris

returns pistondon:

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

shipping pistondon:

• transit: 5-11 Days
• type: Fixed
• cost: $0.00
• class: Economy, Standard, Expedited
• service: Economy, Standard, Expedited

seller pistondon:

• rating: 99.6%
• city: Loudon, Tennessee
• # reviews: 644329

offer pistondon:

• quantity: 1
• started: May 3, 2026
• options: Ship-to-home
• availability: In Stock
• sold: 0

payments pistondon:

• wallet: Paypal
• other
• credit card: Discover

general pistondon:

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

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