Moose Offroad 0910-6517 Piston Kit 14.3:1 2019-2025 Yamaha YZ250F

Unlock the full potential of your engine with the Moose Offroad 0910-6517 High-Performance 4-Stroke Race Piston. Engineered for elite-level racing performance, this kit features a high 14.3:1 compression ratio designed to provide massive gains in throttle response and top-end power. At Moto-House MX, we provide riders with professional-grade engine components that are Made in the USA to ensure your Yamaha stays at the head of the pack.

This piston utilizes a fully boxed-style forging for ultimate strength and weight reduction, allowing your engine to rev faster while maintaining long-term durability. The full radius dome design maximizes quench and eliminates hot spots to prevent engine detonation under high-heat racing conditions. Each kit comes standard with a DLC coated wrist pin for extreme resistance to abrasive wear and moly-coated skirts to significantly reduce friction and heat within the cylinder.

Top Features: Moose Offroad 0910-6517

• Fully Boxed-Style Forging: Advanced aluminum alloy construction for maximum structural integrity and minimized friction.
• 14.3:1 High Compression: A true racing performance upgrade for the Yamaha YZ250F, optimized for maximum power.
• DLC Coated Wrist Pin: Uses Diamond-Like Carbon technology to extend service life and reliability under extreme motocross conditions.
• Moly Coated Skirts: Specialized coating that reduces heat and improves the engine break-in process.
• Internal Bracing: Specialized design that decreases friction in the pin assembly while maximizing overall piston durability.

Fitment List

Year Range	Vehicle Brand	Vehicle Model & Size
2019-2025	Yamaha	YZ250F

Frequently Asked Questions

Do I need to run race gas with a 14.3:1 compression ratio?
Yes, because of the high-compression ratio, it is highly recommended to use high-octane race fuel to prevent detonation and maximize the performance gains of this race piston.

What makes a DLC wrist pin better than a standard one?
The DLC (Diamond-Like Carbon) coating is incredibly hard and slick, which reduces wear on both the pin and the piston boss, making it essential for high-RPM 4-stroke engines.

Is this a standard size piston?
Yes, this is a 77.00mm standard bore size piston, making it a premium OEM replacement for your stock cylinder.

Upgrade Your Ride with the strongest forging on the market. Buy the Moose Offroad 0910-6517 Piston Kit today from Moto-House MX.

Moto-House MX – Choice of Champions – is located in Clermont/Montverde, FL. The best motocross shop in Central Florida.