0SWGJCDCDW WSM Overbore Piston Jet Ski Ultra Kit Di Kawasaki

Review WSM Overbore Piston Kit .5mm Over 80.5mm Kawasaki Jet Ski Ultra 130 for KAWASAKI DI 2001–2004

WSM Overbore Piston Kit for Kawasaki Jet Ski Ultra 130 DI (01-04) - 5mm Bore, 80.5mm Stroke

Upgrade your Kawasaki Jet Ski Ultra 130 DI (model years 01-04) with the WSM Overbore Piston Kit. This kit includes high-performance pistons designed to enhance the power output and overall efficiency of your watercraft engine.

The WSM Overbore Piston Kit consists of five pistons, each with a 5mm overbore and a 80.5mm stroke length. This overbore design increases the engine's displacement, allowing for more fuel and air to be combusted during each power stroke. The result is an increase in horsepower and torque, delivering a more exhilarating and responsive riding experience.

Each piston is meticulously crafted from a high-strength alloy material. This ensures optimal durability and reliability, even during the most demanding water sports activities. The pistons are also nitrided, a process that enhances their surface hardness and reduces friction with the cylinder walls. This reduction in friction leads to less engine wear and improved combustion efficiency.

Additionally, the pistons feature a state-of-the-art ring package. The rings are designed to minimize piston-to-cylinder wall contact, reducing the risk of scuffing and scoring. This results in smoother engine operation and improved engine longevity.

The WSM Overbore Piston Kit also includes new piston rings, piston pin, piston pin bushings, and piston pin clips. Each component is manufactured to OEM specifications for a perfect fit and seamless installation.

In conclusion, the WSM Overbore Piston Kit is the ideal upgrade for those seeking to boost the power and efficiency of their Kawasaki Jet Ski Ultra 130 DI (model years 01-04). With its high-performance pistons, durable materials, and optimized ring package, this kit is sure to deliver impressive results and enhance your watercraft riding experience.

Pros and Cons of Buying a WSM Overbore Piston Kit for Kawasaki Jet Ski Ultra 130 DI (01-04)

The WSM Overbore Piston Kit (part number WSM 0SWGJCDCDW) is a popular upgrade option for the Kawasaki Jet Ski Ultra 130 DI (model years 2001-2004). This piston kit is designed to provide increased performance, durability, and efficiency. In this analysis, we will discuss the key advantages and disadvantages of purchasing and installing this piston kit.

1. Increased Power: The overbore piston kit allows for a larger bore size, which results in an increase in engine displacement. This leads to more power output, enabling the jet ski to accelerate faster and reach higher top speeds.

2. Improved Durability: The piston kit is made from high-quality materials, such as forged pistons and rings. These components are designed to withstand the rigors of high-performance use, resulting in a longer lifespan and reduced maintenance requirements.

3. Enhanced Efficiency: The overbore piston kit allows for a more efficient combustion process, resulting in improved fuel economy and reduced exhaust emissions.

4. Customization: Installing a WSM Overbore Piston Kit is an excellent way to personalize your Jet Ski Ultra 130 DI, setting it apart from other stock models and providing a unique riding experience.

1. Cost: The piston kit is a significant investment, with prices ranging from several hundred to over a thousand dollars, depending on the installation and any additional components required.

2. Installation Complexity: Installing the piston kit requires a certain level of mechanical expertise and the use of specialized tools. This may result in additional labor and time costs, as well as the potential for errors during the installation process.

3. Compatibility: Ensure that the piston kit is compatible with your specific Jet Ski Ultra 130 DI model year and engine configuration. Incorrect installation can lead to poor performance, decreased durability, or even engine damage.

4. Potential for Increased Noise: The increased power output of the piston kit can result in increased engine noise, which may not be desirable for all users.

The WSM Overbore Piston Kit for the Kawasaki Jet Ski Ultra 130 DI (01-04) offers significant advantages in terms of power, durability, and efficiency. However, these benefits come at a cost, both financially and in terms of installation complexity. Careful consideration should be given to the potential benefits and drawbacks before deciding to purchase and install this piston kit.

If you are an experienced jet ski enthusiast seeking to enhance the performance and longevity of your Kawasaki Jet Ski Ultra 130 DI (2001-2004), the WSM Overbore Piston Kit may be an excellent investment. Ensure that you have the necessary mechanical expertise, tools, and compatibility information to ensure a successful installation. For those with less experience or a tighter budget, alternative upgrades or maintenance measures may be more suitable.

Details:

Any fitment provided is for us spec model's. Piston Diameter: 80.5mm. Use our shipping packaging to ship back the item, do not tape label Directly original manufacturers box. Order one kit per cylinder.

Wrist pin bearing included: yes. Complete piston kit. Item must be in original undamaged unopened packaging. Stock cylinders will need to be re-bored and re-plated the appropriate size.

Oem piston bore size: 80mm. 2001 Kawasaki jet ski ultra 130 Di jh1100b. Rings available separately. Piston over bore amount: 0.5mm.

This kit will only fit cylinders that are overbore to the bore size listed, standard pistons available in another listing.

specifications watercraftimp:

• for models: Di
• for makes: Kawasaki
• for years: 2001–2004
• brand: Wsm
• mpn: 0swgjcdcdw
• part type: Jet Piston
• california prop 65 warning: Warning, And Birth Defects Or Other Reproductive Harm.
• compatible model: Jet Ski Ultra 130 Di
• length: 4.600
• oem piston bore size: 80 Mm
• package quantity: Each
• piston diameter: 80.5 Mm
• piston over bore amount: 0.5 Mm
• wrist pin bearing included: Yes

shipping watercraftimp:

• transit: 2-6 days
• class: standard
• type: fixed
• service: standard

payments watercraftimp:

• credit card: Diners-club
• other
• wallet: google-pay

general watercraftimp:

• category: Watercraft Parts > Engines > Impellers Components

offer watercraftimp:

• in stock #: 3
• sold #: 14
• availability: in stock
• started: december 16, 2025
• price: $88.43
• item condition: New
• options: ship-to-home

returns watercraftimp:

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

seller watercraftimp:

• rating: 99.3%
• city: parkersburg, west virginia
• # reviews: 25557