WISECO 4419M08400 Piston Kit 84.00MM

( Brand: Wiseco ), ( Manufacturer Part Number: 4419M08400 ), ( Engine Type: 4-stroke ), ( Type: Piston Kit ), ( Performance Part: Yes )

Review WISECO Piston Kit Yamaha Series 84.00mm fits YFM350

Introducing the WISCO 4419M08400 piston kit, specifically designed for Yamaha YFM350 engines with a bore size of 84.00mm. This high-performance piston kit is an excellent choice for those seeking to enhance their engine's power and efficiency.

The WISCO piston kit includes four new pistons, rings, and clips, ensuring a complete and comprehensive solution for engine rebuilding or upgrading. Each piston is meticulously engineered using premium-grade aluminum alloy, ensuring both strength and lightweight properties.

The piston tops are CNC machined to exacting specifications, providing a precise fit within the engine cylinder. The piston skirts are designed with a honed finish to minimize friction and promote smooth engine operation. The piston rings are made from high-tensile materials, ensuring a tight seal within the piston bores to prevent compression leakage and improve engine performance.

The piston kit also includes new clips to securely hold the pistons in place within the engine. These clips are designed to provide a secure and reliable hold, ensuring the pistons remain in place during engine operation.

By upgrading to the WISCO 4419M08400 piston kit, you can expect improved engine performance, increased power output, and enhanced durability. This piston kit is an excellent investment for enthusiasts looking to maximize the potential of their Yamaha YFM350 engine.

In summary, the WISCO 4419M08400 piston kit is a high-quality, premium solution for upgrading or rebuilding the Yamaha YFM350 engine with an 84.00mm bore size. It includes four new pistons, rings, clips, and is engineered using premium-grade materials to ensure both strength and lightweight properties. By upgrading to this piston kit, you can expect improved engine performance, increased power output, and enhanced durability.

Wiseco 4419M08400 Piston Kit for Yamaha YFM350: A Comprehensive Analysis

The Wiseco 4419M08400 piston kit is designed for the Yamaha YFM350 ATV. This kit includes high-performance pistons that can provide better power and efficiency. In this analysis, we will discuss the advantages and disadvantages of purchasing this piston kit.

1. Enhanced Performance: The Wiseco pistons are made of forged aluminum, which is stronger and lighter than stock pistons. This results in increased power output and improved engine response.

2. Durability: Forged pistons are known for their durability and resistance to engine stress. This piston kit can withstand the rigors of off-road riding, making it a suitable upgrade for heavy usage.

3. Improved Fuel Efficiency: The lighter pistons can help the engine run more efficiently, resulting in improved fuel economy and longer run times between refills.

4. Customizable: Wiseco offers various piston designs and sizes to cater to different riding styles and engine modifications. This allows riders to tailor their engine performance to their specific needs.

1. Cost: The Wiseco piston kit is more expensive than OEM (Original Equipment Manufacturer) pistons. This could be a significant investment for some riders, especially those on a tight budget.

2. Installation: Installing the piston kit requires a certain level of mechanical expertise. This could be a challenge for some riders, and it may be necessary to hire a professional mechanic for the installation.

3. Potential Engine Tuning: Installing high-performance pistons like the Wiseco kit may require additional engine tuning to ensure optimal performance. This could involve additional costs and time.

The Wiseco 4419M08400 piston kit for the Yamaha YFM350 offers several advantages, including enhanced performance, durability, improved fuel efficiency, and customizability. However, it also comes with some disadvantages, such as a higher cost, installation challenges, and potential engine tuning requirements.

If you are an avid off-road rider looking for improved engine performance and durability, the Wiseco piston kit may be worth the investment. However, it is essential to consider your budget, mechanical expertise, and the potential need for engine tuning before making the purchase. For casual riders or those on a tight budget, the OEM pistons may be a more suitable option.

Details:

This includes model's like the Warrior, Raptor 350 early years that share same top end, and other 350-class Yamaha quads using engine platform. For sale is a new old-stock Wiseco 4419M08400 forged piston kit for the Yamaha YFM350 series ATV. The box shows shelf wear and handwriting, but the piston kit inside is unused.

part #: 4419m08400 prices

• $189.99-$210.95

specifications pistondon:

• for models: Yfm350
• for makes: Yamaha
• brand: Wiseco
• mpn: 4419m08400
• engine type: 4-stroke
• type: Piston Kit
• performance part: Yes

returns pistondon:

• policy: No Returns

seller pistondon:

• rating: 100.0%
• # reviews: 64
• city: wood bury, New Jersey

offer pistondon:

• quantity: 1
• sold: 0
• options: Ship-to-home
• started: November 21, 2025
• availability: In Stock
• best offers: True

payments pistondon:

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

general pistondon:

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

shipping pistondon:

• type: Calculated
• cost: $0.00
• carrier: USPS
• service: USPS Ground Advantage
• transit: 5-13 Days
• class: Standard

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