Athena Piston Kit with Gaskets, 3.817 in Bore for Yamaha (P5F0970197004A)

The Athena P5F0970197004A Piston Kit with Gaskets is engineered for select Yamaha four-stroke off-road motorcycles. Constructed from high-performance aluminum alloy with a high silicon content, this piston is designed to provide OE-equivalent reliability while delivering enhanced resistance and dependable performance under demanding riding conditions. The kit includes the piston, piston rings, and gaskets for a practical replacement solution.
The piston features a smooth profile that supports consistent gas flow and efficient flame propagation. Its design is produced through reverse extrusion and precision CNC machining, helping maintain accurate manufacturing tolerances and dependable fitment. The 3.817-inch bore specification makes this Athena kit suitable for applications requiring a replacement piston with performance-focused construction.
Included piston rings are manufactured in Japan and feature wear-resistant PVD or chromium nitride coatings. These coatings help reduce friction between the rings and cylinder, support improved engine performance, and extend ring service life. The result is a durable piston assembly designed to help restore compression and reliable operation in compatible Yamaha off-road motorcycle engines.
Install the Athena P5F0970197004A according to the motorcycle manufacturer’s service procedures and verify application compatibility before installation. With its precision-machined piston, coated rings, and included gaskets, this kit provides a complete component package for maintenance or engine rebuilding.

Features:

• Brand: Athena

• Part Number: P5F0970197004A

• Application: Select Yamaha four-stroke off-road motorcycles

• Construction: High-performance aluminum alloy with high silicon content

• Design: Smooth piston profile for consistent flow and flame propagation

• Manufacturing: Reverse-extruded piston produced with precision CNC machinery

• Piston Rings: Japanese-made rings with PVD or chromium nitride wear-resistant coatings

• Performance: Reduced ring friction for improved engine performance

• Included Components: Piston, piston rings, and gaskets

• Bore Size: 3.817 inches

Ships from Parts Unlimited.