TOP END PISTON & GASKET KIT 77MM YAMAHA WR/YZ 250 16-18, ATHENA P5F0770187009A, SET A
Athena Top End Piston Kit includes a forged 4-stroke piston and top end gasket kit. The piston is made from a special high-performance aluminum alloy with high silicon content, produced with state-of-the-art numerical control (CNC) machines. Piston rings are Made in Japan with wear-resistant coatings (PVD or chromium nitride). Gasket kits are based on extensive experience and technological development, produced following strict manufacturer parameters using laser cutting. Technical features include a Big End Pin Diameter of 16x9.5x38 mm, Bore Diameter of 76.95 mm, Compression Height of 20.20 mm, Compression Ratio of 13.5:1, Displacement of 250 cc, Number Of Segments of 2, Standard Piston Pin Type, and Forged Piston Type.
- SKU
- 56-T1006.A_ATH
- Brand
- Athena
- Availability
- In Stock (1)
FULL DESCRIPTION
Athena Top End Piston and Gasket Kit
Upgrade your motorcycle's engine performance and reliability with the Athena Top End Piston and Gasket Kit. This comprehensive kit combines a high-performance forged piston with a perfectly matched top-end gasket set, designed for optimal engine operation.
Key Features:
- Forged 4-Stroke Piston: Constructed from a special high-performance aluminum alloy with a high silicon content, this piston offers enhanced durability and excellent performance, comparable to Original Equipment (OE) standards.
- Advanced Manufacturing: Produced using state-of-the-art numerical control (CNC) machines with reverse extrusion technology for precision and quality.
- Optimized Piston Skirt Treatment: Some piston skirts feature a molybdenum disulfide coating applied by screen printing to significantly reduce friction, boosting performance and extending engine life.
- High-Quality Piston Rings: Includes two piston rings made in Japan, featuring wear-resistant coatings (PVD or chromium nitride) for reduced cylinder friction and increased durability.
- Reliable Gasket Set: Developed with over 40 years of industry experience, Athena gasket kits ensure maximum reliability. They are engineered by an internal team and manufactured to strict OEM parameters.
- Precision Gasket Cutting: Utilizes the latest generation lasers for perfect cutting quality, ensuring a precise and secure seal.
- Material Science: Employs a wide availability of raw materials, surface treatments to manage irregularities, and material stress-relieving processes for improved sealing in critical areas.
- Complete Top End Solution: This kit provides a perfectly tuned combination of essential engine components for a high-performance rebuild.
Technical Specifications:
- Big End Pin Diameter: 16x9.5x38 mm
- Bore Diameter: 76.95 mm
- Compression Height: 20.20 mm
- Compression Ratio: 13.5:1
- Displacement: 250 cc
- Number Of Segments (Piston Rings): 2
- Piston Pin Type: Standard
- Piston Type: Forged