ATHENA P5F0970197004A Top End Piston Kit for Yamaha 450 YZ-F 2018–2019

Breathe new life into your 4-stroke enduro engine with Athena's Forged Top End Piston Kit. Designed for riders who demand race-proven performance and uncompromising reliability, this complete rebuild kit pairs a precision-forged piston with Athena's premium top-end gasket kit for a seamless installation and long-lasting durability. Manufactured using a reverse extrusion forging process and precision CNC machining, the piston delivers exceptional strength, superior heat resistance, and smooth, responsive power delivery, while premium Japanese piston rings and Athena's advanced gasket technology provide outstanding sealing for dependable performance in the harshest riding conditions.

• 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 consistent performance
• Premium Japanese piston rings with wear-resistant coatings reduce friction and extend engine life
• Three-ring piston design enhances oil control, sealing, and long-term durability
• Advanced gasket materials provide dependable, leak-free sealing for demanding enduro applications

Includes:

• Forged 4-Stroke Piston
• Piston Rings (3)
• Piston Pin / Wrist Pin
• Circlips
• Complete Top End Gasket Kit

• Piston Size: 96.95mm
• Displacement: 450cc
• Compression: 12.8:1
• Piston Type: Forged
• Compression Height: 24.0mm
• Piston Pin: Biconical
• Big End Pin Diameter: 18 x 10 x 48.8mm

The ATHENA P5F0970197004A Top End Piston Kit is identified for Yamaha 450 YZ-F models from 2018 through 2019. Designed as a top-end piston kit, it is intended for applications requiring a replacement piston assembly for the specified motorcycle model and model years.

This kit is sold as one unit, as indicated by the listed unit of measure. Verify the part number and vehicle application before purchase to help ensure it matches the intended Yamaha 450 YZ-F service requirement.

Features:

• Brand: ATHENA
• Part Number: P5F0970197004A
• Product Type: Top end piston kit
• Application: Yamaha 450 YZ-F
• Model Years: 2018–2019
• Unit of Measure: Each