WISECO S7V3QYUVRP Forged Piston Kit 92MM 13.5

( Brand: Wiseco ), ( Manufacturer Part Number: S7V3QYUVRP ), ( Type: Piston Kit ), ( California Prop 65 Warning: Warning, And Birth Defects. ), ( Item Weight: 1.0000 ), ( Length: 4.800 ), ( Compression Ratio: 13.5 ), ( Piston Size: 96.00mm Standard ), ( Piston Type: Forged ), ( Engine Type: 4-stroke ), ( Displacement: 399cc ), ( Oem Piston Bore Size: 92 Mm ), ( Package Quantity: Each )

Review WISECO Forged Piston Kit 92mm 13.5 Yamaha fits YZ400F 1998–1999

The WiseCO S7V3QYUVRP Forged Piston Kit is specifically designed for Yamaha YZ400F motorcycles manufactured between 1998 and 1999. This piston kit is an upgrade from the OEM (original equipment manufacturer) piston, offering enhanced performance and durability.

The forged piston design ensures superior strength and consistency compared to cast pistons. Each piston is meticulously crafted using high-quality forged aluminum alloy, resulting in a more robust and reliable component. The piston crown is engineered with a unique dish shape to improve combustion efficiency and power output.

The piston skirt features a full-length oil cooled skirt design. This innovative feature helps to reduce piston temperatures by up to 30 degrees Celsius, preventing thermal expansion and ensuring optimal piston-to-liner clearance. The skirt also includes a reinforced rib design, which increases piston stability and reduces the risk of piston slap.

The piston kit comes with a set of rings, including a compression ring, oil control ring, and two piston rings. These rings are made from high-quality materials that provide excellent sealing and ring grip, ensuring optimal engine performance and efficiency.

The piston kit also includes a set of wrist pins, which are precision machined from high-strength material to accommodate the increased power output of the upgraded pistons. The wrist pins are also coated with a wear-resistant material to ensure long-lasting performance.

The WiseCO S7V3QYUVRP Forged Piston Kit is a direct replacement for the OEM piston, making installation straightforward and hassle-free. It is designed to work seamlessly with the existing engine components and requires no modifications. This piston kit is an excellent choice for riders who are looking to improve the performance and reliability of their Yamaha YZ400F motorcycle.

Wiseco S7V3QYUVRP Forged Piston Kit (92mm, 13.5, Yamaha YZ400F 98-99) - A Detailed Analysis

The Wiseco S7V3QYUVRP forged piston kit is a popular upgrade for the Yamaha YZ400F 98-99 model. This piston kit is known for its high-performance capabilities, but like any aftermarket part, it comes with its advantages and disadvantages. In this analysis, we will discuss the pros and cons of investing in this piston kit.

1. Enhanced Power and Performance: Forged pistons are stronger and lighter than their stock counterparts. They enable better compression ratios, leading to increased horsepower and torque.

2. Durability: Forged pistons are more resilient to the heat and stress generated during high-performance riding. They are less prone to cracking or melting, extending the engine's life.

3. Improved Engine Response: The forged pistons offer better ring sealing, ensuring a more efficient combustion process. This results in improved engine response and overall performance.

1. Cost: Forged pistons are more expensive than stock pistons. The Wiseco S7V3QYUVRP kit is no exception, making it a significant investment for enthusiasts.

2. Installation Complexity: Installing a forged piston kit requires a high level of expertise and specialized tools. It is not a DIY project and should be left to professionals to avoid damaging the engine.

3. Potential Weight Disadvantage: Although forged pistons are lighter than stock pistons, the difference might not be significant enough to produce noticeable weight savings. This may not be a significant concern for most riders.

The Wiseco S7V3QYUVRP forged piston kit offers numerous advantages for those seeking enhanced power, improved performance, and increased engine durability. However, its high cost and installation complexity are important considerations. Ultimately, the decision to invest in this kit depends on your budget, riding style, and commitment to maintaining a high-performance engine.

For enthusiasts who prioritize power, performance, and durability, the Wiseco S7V3QYUVRP forged piston kit is an excellent investment. It is essential to ensure that the installation is carried out by a professional mechanic to minimize any potential risks. For riders who are budget-conscious or prefer a more straightforward upgrade, other aftermarket parts may be more suitable.

Details:

All Wiseco pistons are priced with rings and cir clips. Wiseco went on to making a plethora of innovative motor sports equipment from clutch covers valve kits, including Forged Piston Kit 92mm 13.5:1, that will not have you questioning the quality or care was put in them. After almost a century in the business, Wiseco has been identified as piston manufacturer, but they didn't stop there. Wiseco is unique because we forge all of our pistons in-house, and produce tooling right here in the USA.

Compression Ratio: 13.5:1. Use our shipping packaging to ship back the item, DO NOT tape label directly original manufacturers box. Wiseco leads the performance aftermarket by producing highest quality forged pistons for Dirt Bikes, ATV, Snowmobiles, Marine Vehicles, and Motorcycles right here in USA. Any fitment provided is for US Spec model's.

Forged from high-silicon alloy for maximum strength and dependability. Wiseco offers a complete range of popular piston model's and years for both trail racing applications. Engine Type: 4-Stroke. Oem Piston Bore Size: 92mm.

Piston Type: Forged. Item must be in original undamaged unopened packaging.

part #: s7v3qyuvrp price

• $259.02

specifications pistondon:

• for models: Yz400f
• for makes: Yamaha
• for years: 1998-1999
• brand: Wiseco
• mpn: S7v3qyuvrp
• type: Piston Kit
• california prop 65 warning: Warning, And Birth Defects.
• item weight: 1.0000
• length: 4.800
• compression ratio: 13.5
• piston size: 96.00mm Standard
• piston type: Forged
• engine type: 4-stroke
• displacement: 399cc
• oem piston bore size: 92 Mm
• package quantity: Each

returns pistondon:

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

shipping pistondon:

• class: Standard
• type: Fixed
• cost: $0.00
• service: Standard
• transit: 5-9 Days

seller pistondon:

• city: Parkersburg, West Virginia
• rating: 98.7%
• # reviews: 1994 6

offer pistondon:

• quantity: 1
• availability: In Stock
• sold: 0
• options: Ship-to-home
• started: June 18, 2025

general pistondon:

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

payments pistondon:

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

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