WSM-5647-486518 WSM Platinum Piston Gp Kit GP1800 Yamaha

Review WSM Platinum Series Piston Kit 86.40mm Yamaha Gp for YAMAHA GP1800 2017–2018

Introducing the WSM WSM-5647-486518 Platinum Piston Kit, specifically designed for the Yamaha GP1800 and GP1800 models from 2017 and 2018. This piston kit is an excellent upgrade for your watercraft, ensuring superior performance, reliability, and longevity.

The Platinum Piston Kit comes with four high-quality pistons, each featuring a platinum-coated skirt that reduces friction and minimizes scuffing. This coating not only enhances the piston's durability but also contributes to a smoother, more efficient engine operation. Additionally, the pistons are precision-machined to ensure a perfect fit and minimal clearance, ensuring optimal power transfer and piston-to-cylinder contact.

The WSM pistons are made from a high-strength forged aluminum alloy, which offers superior strength, rigidity, and resistance to detonation. The piston crowns have been optimized for the GP1800 engine, providing excellent heat dissipation and combustion efficiency. The pistons are also designed with a balanced shape, ensuring even weight distribution and minimizing vibration.

This kit also includes four piston rings, each featuring a nitrided surface treatment that enhances their durability and reduces wear. The rings are precision-machined to ensure a proper fit and optimal sealing performance.

The WSM Platinum Piston Kit is an excellent investment for any Yamaha GP1800 or GP1800 owner looking to maximize their watercraft's performance and reliability. With its high-quality materials, precise machining, and innovative design, this piston kit is sure to provide years of dependable service.

Installing the WSM Platinum Piston Kit is a straightforward process that can be completed with common hand tools. Detailed instructions and technical support are available from WSM to ensure a successful installation.

In summary, the WSM WSM-5647-486518 Platinum Piston Kit is a top-of-the-line upgrade for your Yamaha GP1800 or GP1800. With its platinum-coated pistons, high-strength aluminum alloy construction, and precision machining, this kit delivers superior performance, reliability, and longevity.

The WSM WSM-5647-486518 Platinum Piston Kit is a performance upgrade for the Yamaha GP1800 watercraft model from 2017 and 2018. Here are some potential pros and cons to consider before making a purchase.

1. Increased Horsepower: The platinum piston kit is designed to provide a horsepower boost, making your watercraft faster and more responsive.

2. Enhanced Engine Performance: The pistons are made from high-quality materials, such as forged aluminum alloy, which can improve engine efficiency and durability.

3. Improved Throttle Response: The piston kit can help improve throttle response, allowing for quicker acceleration and smoother power delivery.

4. Upgraded Aesthetics: The platinum piston kit can also enhance the visual appeal of your watercraft with its high-end finish and components.

1. Cost: The WSM Platinum Piston Kit is a premium upgrade, and the cost may be a significant investment for some buyers.

2. Installation Complexity: Installing the piston kit may require specialized tools and knowledge, adding to the overall cost and time investment.

3. Potential Compatibility Issues: Ensure that the piston kit is compatible with your specific model year and engine configuration before making a purchase.

4. Potential Warranty Voiding: Installing aftermarket parts like the WSM Platinum Piston Kit may void your watercraft's factory warranty.

The WSM WSM-5647-486518 Platinum Piston Kit offers significant performance improvements, including increased horsepower, enhanced engine efficiency, and improved throttle response. However, these benefits come at a cost, both financially and in terms of installation complexity. Additionally, there is a risk of compatibility issues and potential warranty voiding. Ultimately, the decision to purchase the piston kit depends on your budget, technical abilities, and desired performance enhancements for your Yamaha GP1800 watercraft.

If you're an experienced watercraft owner with a solid understanding of engine mechanics and a desire for increased performance, the WSM Platinum Piston Kit may be a worthwhile investment. However, for those with less technical expertise or a tighter budget, it may be more prudent to explore other options for enhancing your watercraft's performance. Always ensure that you research the compatibility of the piston kit with your specific model and year before making a purchase.

Details:

Wsm platinum series piston kit 86.40mm Yamaha gp 1800 GP1800 2017 -2018: kit contains: 1 one piston as well rings, pin and clips to match piston bore size: 86.40mm, actual contents may vary from photo, pistons are made of high strength hardened aluminum. They are designed to prevent skirt and ring groove breakage. I need to exchange an item. Piston walls are treated with a nonabrasive coating which reduces heat and friction for extended life.

Parts without fitment are to be assumed universal and may require vehicle modification.: brand: Wsm, model number: WSM-5647-486518. Compatibility, Yamaha Fox cruiser shoe fa1800-a 2008-2016, Soho fc1800-a 2017 , Fox/fa1800 2008-2015, fc1800 2014-2018, Fez-r 1800 gx1800 2009-2016, Fez-s gx1800-a gp 1200 gp1200 1997-1999, GP1800 2017 -2018, SUV sv1200 1999, XL xa1200 1998-1999, ltd 1999. This is helpful if you are buying multiple items.

specifications watercraftimp:

• for models: Gp1800
• for makes: Yamaha
• for years: 2017–2018
• brand: Wsm
• mpn: Wsm-5647-486518
• part type: Piston

shipping watercraftimp:

• type: fixed
• transit: 2-7 days
• class: standard
• service: standard

offer watercraftimp:

• options: ship-to-home
• in stock #: 1
• availability: in stock
• sold #: 17
• price: $130.42
• item condition: New
• started: february 11, 2026

general watercraftimp:

• category: Watercraft Parts > Engines > Impellers Components

returns watercraftimp:

• paid by: seller
• time: 30 days
• policy: returns accepted

payments watercraftimp:

• credit card: visa
• other
• wallet: apple-pay

seller watercraftimp:

• rating: 99.9%
• city: boise, id
• # reviews: 77481