66.4mm Cylinder Piston Top End Rebuild Kit for Yamaha YZ250 (1999-2025)
Restore the power and performance of your dirt bike with this comprehensive 66.4mm cylinder piston top end rebuild kit. Specially designed as a high-quality aftermarket solution for Yamaha YZ250 models from 1999 through 2025, this kit includes the essential components required for a successful top-end overhaul. This is an aftermarket replacement part engineered to provide reliable service and durability under demanding riding conditions, offering a perfect fit for your YZ 250 engine.
Key Features & Benefits
- Precision-machined 66.4mm bore cylinder for optimal compression and power delivery.
- Complete kit includes piston, rings, wrist pin, circlips, and top-end gaskets.
- Constructed from high-grade aluminum and alloys to withstand extreme heat and friction.
- Designed for a direct-fit installation to reduce downtime in the garage.
- Cost-effective aftermarket alternative to expensive OEM components.
Compatible Models
- Yamaha YZ250 (1999-2025)
- Yamaha YZ250X (2016-2025)
Product Specifications
- Bore Size: 66.4mm
- Part Type: Top End Rebuild Kit
- Component Type: Aftermarket Replacement
- Engine Type: 2-Stroke
Frequently Asked Questions
Is this an OEM part? No, this is a premium aftermarket part designed to meet or exceed the performance of the original equipment, but it is not manufactured by the original equipment manufacturer.
How do I confirm compatibility? To ensure this kit fits your bike, please verify that your model is a Yamaha YZ250 or YZ250X manufactured between 1999 and 2025. It is also recommended to verify your current cylinder bore size is the standard 66.4mm before ordering.
Important: This is a premium aftermarket part and is not manufactured by the original equipment manufacturer (OEM). Brand names and model numbers are used for reference purposes only. Compatibility may vary depending on the machine's serial number. Please verify fitment before purchase.
