WOSSNER K4083D478-2 Piston Kit Cvo 4.500 120

( Brand: Wossner ), ( Manufacturer Part Number: K4083D478-2 ), ( Part Type: Piston )

Review WOSSNER Piston Kit For 4.500 Inch Stroke 120 Cid Cvo fits M8 500

The Wossner K4083D478-2 piston kit is an essential upgrade for Harley-Davidson CVO models with a 4.500 bore and 120mm stroke, specifically those powered by the iconic M8 engine. This top-quality piston kit is manufactured by Wossner, a renowned name in the automotive aftermarket, ensuring superior performance, durability, and reliability.

Each piston in this kit is meticulously crafted from forged 2618-T43 boron alloy. This material offers enhanced strength, rigidity, and thermal resistance compared to cast pistons, allowing the engine to handle increased horsepower and torque. The piston tops are honed to perfection with a crown shape that optimizes combustion efficiency and minimizes friction, reducing engine wear and improving overall performance.

The piston skirts are designed with an optimized shape and a state-of-the-art coating for superior ring sealing. This coating also enhances the piston's resistance to detonation and thermal shock, ensuring consistent power delivery and longer engine life. The piston rings included in the kit are made of high-temperature, nitrided, chrome-silicon alloy, offering excellent sealing properties even under heavy load and extreme temperatures.

The Wossner K4083D478-2 piston kit also features lightweight, high-strength connecting rods, ensuring precise rod-to-piston alignment and reduced reciprocating mass for improved engine response and efficiency. The piston pin is made from high-strength, heat-treated chromoly steel, ensuring secure retention of the piston in the cylinder and minimizing the risk of piston-pin bending.

This piston kit comes complete with all necessary hardware, including piston pins, piston pin bushings, and wrist pin bushings. The installation process is straightforward, making it an excellent choice for DIY enthusiasts or professional mechanics alike. By upgrading to this Wossner piston kit, you will not only enhance the performance and longevity of your Harley-Davidson CVO engine but also add a touch of exclusivity, as this kit is not available through the dealership network.

Wossner K4083D478-2 Piston Kit for 4.500 120 M8 CVO: A Detailed Analysis

The Wossner K4083D478-2 piston kit is a popular aftermarket option for Harley-Davidson's 4.500 120 M8 CVO engines. In this analysis, we will discuss the pros and cons of investing in this piston kit to help you make an informed decision.

1. Enhanced Performance: Wossner pistons are known for their high-performance capabilities. These forged pistons provide increased power output and improved combustion efficiency.

2. Durability: Forged pistons are more robust and durable than their cast counterparts. They are less prone to failures such as piston ring wear and can handle higher compression ratios.

3. Improved Engine Life: The Wossner piston kit can help extend the life of your engine by reducing engine temperatures, improving ring seal, and reducing detonation.

4. Customization: Wossner pistons are available in various sizes and specifications, allowing you to customize your engine to meet your specific performance goals.

1. Cost: The Wossner piston kit is a more expensive option compared to OEM pistons. However, the increased performance and durability may justify the investment for some riders.

2. Installation: Installing aftermarket pistons can be a complex process and requires specialized tools and expertise. It is recommended that the installation is performed by a professional mechanic.

3. Compatibility: It is essential to ensure that the Wossner piston kit is compatible with your specific engine model and year. Incorrect installation can lead to serious engine damage.

The Wossner K4083D478-2 piston kit offers numerous benefits, including enhanced performance, durability, improved engine life, and customization options. However, it comes with a higher cost, the need for professional installation, and compatibility considerations. If you are looking for high-performance and durability, the investment in this piston kit may be worthwhile. However, if you are on a budget or prefer a simpler and more affordable solution, the OEM pistons may be a better option for you. Ultimately, the decision depends on your individual needs, preferences, and budget.

Details:

part #: k4083d4782 prices

• $350.55-$448.00

specifications pistondon:

• for models: M8, 500
• brand: Wossner
• mpn: K4083d478-2
• part type: Piston

returns pistondon:

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

offer pistondon:

• options: Ship-to-home
• sold: 0
• availability: In Stock
• quantity: 4
• started: March 14, 2026

payments pistondon:

• other
• credit card: Visa
• wallet: Google-pay

general pistondon:

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

shipping pistondon:

• class: Standard
• transit: 4-7 Days
• cost: $0.00
• type: Fixed
• carrier: FedEx
• service: FedEx Ground / FedEx Home Delivery

seller pistondon:

• rating: 99.9%
• # reviews: 32319
• city: Orange, California

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