Top End Piston Kit; Yamaha 250 YZ 99-23

Description

Breathe new life into your 2-stroke engine with Athena's Forged Top End Piston Kit. Designed for riders who demand maximum strength and reliability, this complete rebuild kit pairs a precision-forged piston with Athena's premium top-end gasket kit for exceptional performance on the track or trail. Forged from a high-performance aluminum alloy and precision CNC machined, the piston offers superior durability, improved heat resistance, and consistent power delivery, while Athena's advanced gasket technology ensures a dependable, leak-free seal every time.

- Complete top-end rebuild kit featuring a forged 2-stroke piston and premium gasket set
- Forged high-performance aluminum piston for maximum strength and durability
- Precision CNC-machined for OEM-quality fit and reliable performance
- Optimized piston profile promotes efficient combustion and smooth power delivery
- Premium piston rings provide excellent cylinder sealing while minimizing friction
- Advanced gasket materials deliver long-lasting sealing under demanding riding conditions

Includes:

- Forged 2-Stroke Piston
- Piston Rings (2)
- Piston Pin / Wrist Pin
- Circlips
- Needle Bearing
- Complete Top End Gasket Kit

- Piston Size: 66.34mm
- Displacement: 250cc
- Compression: Standard
- Piston Head: Domed
- Piston Type: Forged
- Piston Pin: Biconical
- Big End Pin Diameter: 18 x 13 x 53mm

California residents

WARNING: This product can expose you to chemicals including nickel, which is known to the State of California to cause cancer. For more information go to www.P65Warnings.ca.gov.