WISECO 4825PS Forged Piston Fm Es 4825M09000 90MM

( Brand: Wiseco ), ( Manufacturer Part Number: 4825PS ), ( Machine Type: Atv ), ( Items Included: Piston Rings, Wrist Pin, Forged Piston, Circlips ), ( Piston Diameter: 90.00mm ), ( Engine Type: 4-stroke ), ( Type: Piston ), ( Manufacturer Warranty: 1 Month ), ( Cylinder Bore Diameter: 3.544 ), ( Pin Diameter: 19.00mm ), ( Unit Quantity: Each ), ( Country Of Origin: United States ), ( Performance Part: Yes )

Review WISECO Forged Piston 90mm Bore Honda Fm Fe Es fits FOREMAN TRX450 STD

The WISCO 4825PS/4825M09000 forged piston is a high-performance upgrade designed specifically for Honda TRX450FM, TRX450FE, and TRX450ES Foreman and Farm Edition models. This piston is engineered to provide superior durability, increased power, and enhanced reliability for those seeking to maximize the capabilities of their ATV.

Crafted from forged 2618-T43 aluminum alloy, this piston ensures exceptional strength and rigidity. Its closed-deck design enhances ring seal and prevents piston-to-bore contact, minimizing the risk of ring failure and oil consumption. The piston features a flat-top design with a 90mm bore diameter, making it suitable for use with high-compression engines.

The piston also boasts a cutting-edge, state-of-the-art, skirt coating. This advanced technology provides enhanced piston-to-liner contact, reducing friction and promoting longer piston life. It is designed to improve engine efficiency and power output by reducing energy losses.

The piston skirt utilizes a 0.020-inch piston pin bore, which is ideal for use with a 5/16-inch piston pin. The piston pin itself is made from high-strength, heat-treated chrome-moly steel, ensuring a secure fit and exceptional durability.

The top ring groove measurement is 0.076 inches, and the second ring groove measurement is 0.046 inches. These dimensions are crucial for ensuring proper ring fit and sealing performance.

The WISCO 4825PS/4825M09000 forged piston is a direct replacement for the OEM component, making installation straightforward and hassle-free. It comes complete with a new piston pin, piston pin bushings, and a piston ring set to simplify the installation process.

In summary, the WISCO 4825PS/4825M09000 forged piston is an exceptional upgrade for Honda TRX450FM, TRX450FE, and TRX450ES Foreman and Farm Edition models. Its superior strength, enhanced durability, and power gains make it an ideal choice for those seeking to elevate their ATV's performance.

Wiseco 4825PS 4825M09000 Forged Piston for Honda TRX450FM, FE, Foreman ES: A Comprehensive Analysis

The Wiseco 4825PS 4825M09000 forged piston is a popular aftermarket upgrade for Honda TRX450FM, FE, and Foreman ES ATVs. This piston is known for its strength, durability, and performance enhancements. In this analysis, we will discuss the pros and cons of purchasing this piston to help you make an informed decision.

1. Enhanced Performance: The forged piston design provides increased strength and rigidity compared to stock pistons. This results in better power delivery and increased engine performance.

2. Improved Durability: Forged pistons are more resilient to engine heat and pressure, allowing them to last longer than stock pistons. This is essential for heavy-duty use and high-performance applications.

3. Customizable: Wiseco offers various piston options to cater to different riding styles and engine modifications. This allows users to fine-tune their ATVs to better suit their needs.

4. Better Compatibility: The Wiseco 4825PS 4825M09000 piston is designed specifically for the Honda TRX450FM, FE, and Foreman ES models. This ensures proper fitment and reduces the risk of compatibility issues.

1. Cost: Forged pistons are more expensive than stock pistons due to their manufacturing process and materials. This may be a significant investment for some users.

2. Installation Complexity: Installing a forged piston kit requires professional expertise and specialized tools. This adds to the overall cost and time investment.

3. Potential Engine Tuning: Installing a high-performance piston may require additional engine modifications to ensure optimal performance and reliability.

The Wiseco 4825PS 4825M09000 forged piston offers significant performance and durability improvements for Honda TRX450FM, FE, and Foreman ES ATVs. While the cost and installation complexity may be deterrents for some users, the benefits of increased power, longevity, and customization make this piston an excellent upgrade for those who demand the most from their ATVs.

If you use your Honda TRX450FM, FE, or Foreman ES ATV for heavy-duty work or high-performance applications, investing in a Wiseco 4825PS 4825M09000 forged piston is a worthwhile consideration. Consult with a professional mechanic to ensure proper installation and consider any necessary engine modifications to maximize the benefits of this upgrade.

Details:

1x WISECO 4825M09000 90.00mm FORGED PISTON. 1998 1999 2000 2001 2002 Honda TRX450ES FOREMAN ES. 2002 2003 2004 Honda TRX 450FE FOREMAN ES. WISECO PART NUMBER: 4825M09000.

part #: 4825ps prices

• $184.99-$185.35

specifications pistondon:

• for models: Trx450, Std, Foreman
• for makes: Honda
• brand: Wiseco
• mpn: 4825ps
• machine type: Atv
• items included: Piston Rings, Wrist Pin, Forged Piston, Circlips
• piston diameter: 90.00mm
• engine type: 4-stroke
• type: Piston
• manufacturer warranty: 1 Month
• cylinder bore diameter: 3.544
• pin diameter: 19.00mm
• unit quantity: Each
• country of origin: United States
• performance part: Yes

general pistondon:

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

returns pistondon:

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

payments pistondon:

• other
• credit card: Mastercard
• wallet: Paypal

seller pistondon:

• # reviews: 22938
• rating: 100.0%
• city: Safety Harbor, Florida

offer pistondon:

• quantity: 1
• sold: 0
• started: January 21, 2026
• availability: In Stock
• options: Ship-to-home

shipping pistondon:

• cost: $0.00
• carrier: USPS
• service: USPS First Class, USPS Priority Mail, USPS Priority Mail Express
• transit: 3-8 Days
• class: Standard, Expedited
• type: Calculated

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