WISECO 491-P8 Piston

( Brand: Wiseco ), ( Manufacturer Part Number: 491-P8 ), ( Engine Type: 2-stroke ), ( Type: Piston ), ( Items Included: Piston Rings ), ( Country Of Origin: United States )

Review WISECO Piston 491 P8 Suzuki Motocross fits RM 125 1981–1983

The WISCO 491-P8 piston is a high-performance replacement piston designed specifically for Suzuki RM125 motorcycles manufactured between 1981 and 1983. This piston is an excellent choice for riders seeking to enhance their bike's power and reliability.

The WISCO 491-P8 piston is made from forged aluminum alloy, ensuring superior strength and durability. Its design features a compression height of 30.4mm and a total height of 53.5mm, which provides optimal engine performance. The piston's crown is designed with a dome shape to improve combustion efficiency, while the skirt is engineered with a full-length oil cooled skirt to minimize friction and reduce engine temperatures.

The WISCO 491-P8 piston also includes a ring package that consists of a compression ring, a secondary ring, and an oil control ring. These rings are made from high-quality materials and are precision machined to ensure a proper fit and optimal performance. The compression ring is designed with a heavy-duty alloy to provide maximum clamping force, while the secondary ring and oil control ring are designed to minimize friction and prevent oil consumption.

This piston is also compatible with Suzuki RM125 motorcycles that use the same engine specifications as the 1981-1983 models, making it a versatile option for riders looking to upgrade their bikes. The WISCO 491-P8 piston comes with detailed installation instructions, ensuring an easy and hassle-free installation process.

Overall, the WISCO 491-P8 piston is an excellent upgrade for Suzuki RM125 motorcycles manufactured between 1981 and 1983. Its forged aluminum alloy construction, optimized piston design, and high-quality ring package make it a reliable and high-performance option for riders seeking to enhance their bike's power and reliability.

Wiseco 491-P8 Piston for Suzuki RM125 (1981-1983): A Detailed Analysis

The Wiseco 491-P8 piston is a popular aftermarket upgrade for Suzuki RM125 motorcycles manufactured between 1981 and 1983. This piston is known for its high performance and durability. 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 Wiseco 491-P8 piston is designed to deliver improved performance. It has a forged construction that allows it to withstand the increased power and stresses of high-performance riding. The piston also features a lighter weight, which helps to reduce rotating mass and improve engine response.

2. Improved Durability: The forged piston material used in the Wiseco 491-P8 is more durable than the stock piston. This makes it less prone to failure due to engine heat, detonation, or other stresses.

3. Customizability: The Wiseco 491-P8 piston is available in various sizes and configurations to suit different riding styles and engine modifications. This allows riders to tailor the piston to their specific needs and preferences.

1. Cost: The Wiseco 491-P8 piston is more expensive than the stock piston. This may be a deterrent for some riders, especially those on a tight budget.

2. Installation Complexity: Installing the Wiseco 491-P8 piston requires a certain level of mechanical expertise. It is not a simple bolt-on upgrade, and improper installation could lead to engine damage.

3. Potential Clearance Issues: Depending on the specific engine modifications, there may be clearance issues when installing the Wiseco 491-P8 piston. This could require additional modifications or adjustments to the engine.

The Wiseco 491-P8 piston is an excellent upgrade for Suzuki RM125 motorcycles (1981-1983) looking for improved performance and durability. Its forged construction and lighter weight make it a popular choice among high-performance riders. However, the higher cost, installation complexity, and potential clearance issues are important considerations.

If you are a serious off-road rider and are looking to extract the maximum performance from your Suzuki RM125, the Wiseco 491-P8 piston is a worthwhile investment. However, if you are on a tight budget or are not comfortable with the installation process, you may want to consider other options. In such cases, it is recommended to consult with a professional mechanic or engine builder to determine the best solution for your specific situation.

Details:

New Old Stock / Not Pictured No Bearing or Pin. The Wiseco Piston 491 P8 is a high-quality piston designed specifically for Suzuki RM 125 motorcycles from 1981 to 1983. Made in the USA, this piston is compatible with 2-stroke engines and comes rings included.

part #: 491p8 prices

• $88.99-$95.00

specifications pistondon:

• for models: Rm, 125
• for makes: Suzuki
• for years: 1981-1983
• brand: Wiseco
• mpn: 491-p8
• engine type: 2-stroke
• type: Piston
• items included: Piston Rings
• country of origin: United States

offer pistondon:

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

returns pistondon:

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

general pistondon:

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

shipping pistondon:

• class: Economy
• service: Economy
• transit: 4-10 Days
• type: Fixed
• cost: $10.95

seller pistondon:

• # reviews: 1544
• rating: 100.0%
• city: Baton Rouge, Louisiana

payments pistondon:

• wallet: Paypal
• credit card: Mastercard
• other

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