MOOSE RACING 971910 Piston 66.35MM

( Brand: Moose Racing ), ( Manufacturer Part Number: 971910 ), ( Part Type: Piston ), ( Warranty Details: See Manufacturer )

Review MOOSE RACING Piston 66.35mm Fits Yamaha fits YZ250 1999–2013

Introducing the Moose Racing 971910 Piston, an essential upgrade for your Yamaha YZ250 motorcycle model years 1999-2013. This high-performance piston is designed to deliver superior power and durability for off-road racing and riding enthusiasts.

Measuring 66.35mm in bore size, this piston is meticulously crafted from renowned forged material for impressive strength and reliability. The top ring groove is optimally designed to ensure proper ring seating and prevent blow-by, while the piston skirt features an enhanced design to minimize friction and ensure a snug fit within the engine cylinder.

The Moose Racing 971910 Piston boasts a unique design that benefits from a balanced and lightweight construction, allowing for optimal engine performance and increased power output. Its advanced design also makes it an excellent choice for high-revving applications, providing unmatched responsiveness and agility.

Engineered for off-road racing, this piston is designed to withstand the rigors of extreme conditions. Its durability is further enhanced by a robust and hard-wearing coating, providing added protection against the elements and ensuring a long service life.

The Moose Racing 971910 Piston is an easy and effective upgrade for your Yamaha YZ250 motorcycle. It is compatible with the stock crankshaft and connecting rod, making for a straightforward installation process. With its superior power output, enhanced durability, and responsive design, this piston is a must-have for any serious off-road rider or racer. Upgrade your Yamaha YZ250 and experience the difference with the Moose Racing 971910 Piston.

Moose Racing 971910 Piston for Yamaha YZ250 (1999-2013): A Detailed Analysis

The Moose Racing 971910 piston is a popular aftermarket option for owners of Yamaha YZ250 motorcycles manufactured between 1999 and 2013. This piston promises improved performance and durability. In this analysis, we will discuss the pros and cons of purchasing this Moose Racing piston.

1. Enhanced Performance: The Moose Racing 971910 piston is designed to provide improved performance by allowing for a higher compression ratio than the OEM piston. This results in increased horsepower and torque.

2. Durability: The piston is manufactured using a high-quality forged alloy, ensuring superior strength and durability compared to the OEM piston.

3. Reduced Weight: The Moose Racing piston is lighter than the stock piston, contributing to better engine response and overall performance.

4. Better Cooling: The piston features a larger cooling gallery, which helps dissipate heat more effectively, reducing the risk of engine damage.

5. Warranty: Moose Racing offers a 1-year limited warranty on their pistons, providing peace of mind to customers.

1. Cost: The Moose Racing 971910 piston is more expensive than the OEM piston. The cost difference may deter some customers.

2. Installation Complexity: Installing the aftermarket piston can be a challenging process, requiring specialized tools and skills.

3. Potential Engine Modifications: The higher compression ratio of the Moose Racing piston may necessitate additional engine modifications, such as a bigger carburetor or fuel injector, to ensure proper engine operation.

The Moose Racing 971910 piston is an excellent aftermarket option for Yamaha YZ250 owners seeking improved performance and durability. The benefits, such as enhanced power, superior strength, reduced weight, and better cooling, outweigh the potential drawbacks, including the higher cost and installation complexity. If you are comfortable with the required modifications and willing to invest in the piston, it can be a worthwhile upgrade for your motorcycle.

If you're looking to enhance the performance of your Yamaha YZ250 (1999-2013) and are prepared for the potential challenges of installing an aftermarket piston, the Moose Racing 971910 piston is a solid choice. It offers significant benefits that can contribute to a more enjoyable riding experience. Just be sure to carefully consider the installation process and any additional modifications required to ensure your engine operates efficiently and effectively.

Details:

Piston kits include piston, rings, wrist pin, and cir clips. Coated skirts ease break-in, decreasing wear, and aiding in lubrication. Wrist pins are nitrite coated providing a hardened wear resistant bearing surface. YZ250 2-Stroke.

This item fits the following applications. Wear resistant piston rings that are either nitrite or chrome plated. Moose Piston 66.35mm Fits Yamaha YZ250 1999 -2013: Gravity cast aluminum alloy with 18% silicon to increase resistance wear and decrease thermal distortion, thus providing a longer piston life.

part #: 971910 prices

• $386.95-$421.95

specifications pistondon:

• for models: Yz250
• for makes: Yamaha
• for years: 1999-2013
• brand: Moose Racing
• mpn: 971910
• part type: Piston
• warranty details: See Manufacturer

returns pistondon:

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

shipping pistondon:

• cost: $0.00
• type: Fixed
• service: UPS Ground
• carrier: UPS
• class: Standard
• transit: 2-6 Days

general pistondon:

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

seller pistondon:

• city: Grand Rapids, Michigan
• # reviews: 618827
• rating: 99.3%

payments pistondon:

• wallet: Paypal
• other
• credit card: Visa

offer pistondon:

• options: Ship-to-home
• started: July 8, 2025
• sold: 0
• quantity: 5
• availability: In Stock

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