Top End Piston Kit; Yamaha 250 WR-F / YZ-F 16-18

Description

Breathe new life into your 4-stroke enduro engine with Athena's Forged Top End Piston Kit. Engineered for serious riders, this complete rebuild kit combines a precision-forged piston with Athena's premium top-end gasket kit to deliver maximum performance, durability, and reliability. Manufactured using a reverse extrusion forging process and precision CNC machining, the piston offers exceptional strength, improved heat resistance, and smooth power delivery, while premium Japanese piston rings and Athena's advanced gasket technology provide a dependable seal for long-lasting engine performance.

- Complete top-end rebuild kit featuring a forged 4-stroke piston and premium gasket set
- Reverse-extruded forged aluminum piston for exceptional strength and durability
- Precision CNC-machined for OEM-quality fit and reliable performance
- Premium Japanese piston rings with wear-resistant coatings reduce friction and extend engine life
- Optimized piston design delivers efficient combustion and consistent power output
- High-quality gasket materials provide dependable, leak-free sealing under demanding riding conditions

Includes:

- Forged 4-Stroke Piston
- Piston Rings (2)
- Piston Pin / Wrist Pin
- Circlips
- Complete Top End Gasket Kit

- Piston Size: 76.95mm
- Displacement: 250cc
- Compression: 13.5:1
- Piston Type: Forged
- Compression Height: 20.20mm
- Piston Pin: Standard
- Big End Pin Diameter: 16 x 9.5 x 38mm

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.