ATHENA P5F0770212009A Top End Piston Kit for Yamaha 250 YZ-F 2019–2023

Breathe new life into your 4-stroke engine with Athena's Forged Top End Piston Kit. Engineered for riders who demand maximum performance and reliability, this complete rebuild kit combines a precision-forged piston with Athena's premium top-end gasket kit for a seamless installation and race-proven durability. Manufactured using a reverse extrusion forging process and precision CNC machining, the piston delivers exceptional strength, improved heat resistance, and consistent 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 superior strength and durability
• Precision CNC-machined for OEM-quality fit and dependable performance
• Premium Japanese piston rings with wear-resistant coatings reduce friction and extend engine life
• Optimized piston design promotes efficient combustion and smooth, consistent power delivery
• Advanced gasket materials provide reliable, 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

The ATHENA P5F0770212009A Top End Piston Kit is designed for Yamaha 250 YZ-F models from 2019 through 2023. This replacement kit is identified for the top end of the engine and is sold as one unit.

Built for application-specific service needs, this ATHENA piston kit provides a direct product reference for maintaining the top end of compatible Yamaha 250 YZ-F motorcycles. Verify the part number and model year before ordering to help ensure the correct application.

Features:

• Brand: ATHENA
• Part Number: P5F0770212009A
• Product Type: Top end piston kit
• Application: Yamaha 250 YZ-F
• Model Years: 2019–2023
• Unit of Measure: Each