ATHENA S4F06640018A Forged Piston Kit Standard 66.34MM

( Brand: Athena ), ( Manufacturer Part Number: S4F06640018A ), ( Part Type: Piston ), ( Manufacturer Warranty: No Warranty ), ( Size: A Standard Bore 66.34mm )

Review ATHENA Forged Piston Kit Standard Bore 66.34mm

The Athena S4F06640018A Forged Piston Kit is an upgrade solution for those seeking superior engine performance and durability. This piston kit is designed specifically for standard engines with a bore size of 66.34mm. Each piston is meticulously forged from high-quality aluminum alloy, ensuring exceptional strength and rigidity.

The piston crowns are engineered with a dish shape and a compression height of 11.2mm. This design enhances combustion efficiency, allowing for better fuel economy and an increase in power output. Additionally, the piston skirts feature a full-floating design, which minimizes friction and reduces wear on the piston rings.

The piston pins are made from heat-treated steel, ensuring maximum strength and durability. They are also coated with a phosphate finish, which provides an excellent surface finish and helps prevent corrosion. The piston rings are made of high-temperature, low-friction materials, ensuring a proper seal and prolonging engine life.

The piston kit also includes piston pin retainers, which are made of high-strength steel and are designed to provide a secure fit for the piston pins. The piston pin retainers are also coated with a phosphate finish to prevent corrosion.

The Athena S4F06640018A Forged Piston Kit is designed to be a direct replacement for OEM pistons, making installation straightforward. Each piston comes with a matching wrist pin and piston pin bore diameter, ensuring a precise fit. The piston kit also includes new piston rings and ring grooves, which are machined to exacting tolerances to ensure a proper seal.

In summary, the Athena S4F06640018A Forged Piston Kit is an excellent upgrade for those seeking improved engine performance and durability. The forged aluminum pistons, high-strength steel piston pins, and phosphate-coated piston pin retainers ensure maximum strength and longevity. The piston design enhances combustion efficiency, and the piston rings ensure a proper seal. This piston kit is a direct replacement for OEM pistons and is easy to install.

Pros and Cons of buying a Athena S4F06640018A Forged Piston Kit (66.34mm)

The Athena S4F06640018A forged piston kit is a popular choice among engine builders and enthusiasts seeking high-performance upgrades. This kit is designed for engines with a piston bore size of 66.34mm. In this analysis, we will discuss the advantages and disadvantages of investing in this forged piston kit.

1. Enhanced Durability: Forged pistons are known for their superior strength and durability compared to their cast counterparts. They can withstand the increased pressures and temperatures encountered in high-performance applications.

2. Weight Reduction: Forged pistons are generally lighter than cast pistons, which can lead to improved engine response and increased horsepower.

3. Customizability: The Athena S4F06640018A kit offers various options for piston rings, dome shapes, and skirt coatings, allowing users to tailor the pistons to their specific engine requirements.

4. High-Quality Materials: The pistons are made of high-quality forged aluminum alloy, ensuring long-lasting performance and reliability.

5. Improved Engine Efficiency: The forged pistons' lighter weight and more efficient design can lead to improved combustion efficiency and increased fuel economy.

1. Higher Cost: Forged piston kits like the Athena S4F06640018A are generally more expensive than cast piston kits due to their manufacturing process and materials.

2. Complex Installation: Installing forged pistons requires a high level of expertise and specialized tools, which may necessitate the assistance of a professional engine builder or machine shop.

3. Potential Clearance Issues: In some cases, the installation of forged pistons may require adjustments to the engine's crankshaft, connecting rods, or cylinder bore to ensure proper clearance and fitment.

4. Potential Increased Noise: Forged pistons can be louder than cast pistons due to their lighter weight and increased rigidity, which may not be desirable for all applications.

The Athena S4F06640018A forged piston kit offers several advantages, including enhanced durability, weight reduction, customizability, high-quality materials, and improved engine efficiency. However, it also comes with some disadvantages, such as a higher cost, complex installation, potential clearance issues, and increased noise.

Upon evaluating the pros and cons, the decision to purchase this forged piston kit ultimately depends on the specific needs, resources, and preferences of the engine builder or enthusiast. If durability, weight reduction, and customizability are top priorities, and the user has the necessary expertise and resources for installation, the Athena S4F06640018A forged piston kit could be an excellent investment. On the other hand, if the budget is limited or the installation complexity is a concern, a cast piston kit may be a more suitable alternative.

Before purchasing the Athena S4F06640018A forged piston kit, it is essential to consider the engine application, budget, and installation capabilities. It is recommended to consult with a professional engine builder or machine shop to assess the compatibility, benefits, and potential challenges of this forged piston kit for your specific engine build. Additionally, thorough research and comparison with other forged piston kits in the market can help ensure an informed purchasing decision.

Details:

Forged piston kits are available in A, B and C sizing. Forged piston tooling allows for the lightest available product. All pistons are forged using a precision heat-treatment process that allows for production tolerances of just 0.01mm. Both include 3% copper in materials for better heat resistance.

Athena Forged Piston Kits 2-stroke pistons are made from 4032 Slocum. Kits include anti-wear coated piston, rings, pin and cir clips. 4-stroke pistons are made from 2618 Slocum - the same material used to produce Formula 1.

part #: s4f06640018a prices

• $155.26-$177.99

specifications pistondon:

• brand: Athena
• mpn: S4f06640018a
• part type: Piston
• manufacturer warranty: No Warranty
• size: A Standard Bore 66.34mm

seller pistondon:

• # reviews: 3776
• rating: 99.2%
• city: Greenwich, New York

general pistondon:

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

returns pistondon:

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

shipping pistondon:

• cost: $0.00
• type: Fixed
• transit: 4-8 Days
• carrier: UPS, USPS
• service: UPS Ground, USPS Priority Mail
• class: Standard, Expedited

payments pistondon:

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

offer pistondon:

• quantity: 4
• sold: 0
• started: March 7, 2025
• availability: In Stock
• options: Ship-to-home

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