TOP END PISTON & GASKET KIT 77MM YAMAHA WR/YZ 250 14-15, ATHENA P5F0770187008A, SET A
ATHENA Top End Piston Kit with Forged 4-Stroke Piston and Top End Gasket Kit. Piston diameter is 76.96 mm. The kit combines two essential engine components for high performance and reliability. Pistons are made from a special high-performance aluminum alloy with high silicon content, produced using state-of-the-art numerical control (CNC) machines. Some pistons feature a molybdenum disulfide coating on the skirts to reduce friction. Piston rings are Made in Japan with wear-resistant coatings (PVD or chromium nitride) for increased durability. Gasket kits are produced with strict adherence to manufacturer parameters, utilizing laser cutting for precision. Technical features include: Big End Pin Diameter (mm) 16x10x42, Bore Diameter (mm) 76.96, Compression Height (mm) 20.40, Compression Ratio 13.5:1, Displacement (cc) 250, Number Of Segments 2, Piston Pin Type Standard, Piston Type Forged. For competitive use.
- SKU
- 56-T1005.A_ATH
- Brand
- Athena
- Availability
- In Stock (1)
FULL DESCRIPTION
Athena Top End Piston and Gasket Kit
This Athena Top End Piston Kit provides a perfectly matched forged 4-stroke piston and top end gasket set, designed for optimal engine performance and reliability. Athena internally develops and tests all piston technologies and compatible gaskets, ensuring a high-performance and dependable engine rebuild.
Key Features
- Forged Piston: Manufactured using advanced numerical control (CNC) machines from a special high-performance aluminum alloy with a high silicon content for enhanced durability and performance, matching OE reliability.
- Smooth Piston Profile: Ensures regular airflow and proper flame propagation for efficient combustion.
- Molybdenum Disulfide Coating: Some pistons feature this coating on the skirts to reduce friction, further boosting performance and longevity.
- High-Quality Piston Rings: Made in Japan with wear-resistant coatings (PVD or chromium nitride) for reduced cylinder friction and increased durability.
- Reliable Gasket Kit: Developed with over 40 years of industry experience, Athena gasket kits utilize advanced technology and strict manufacturing parameters. Laser cutting ensures precision.
- Advanced Material Treatments: Gaskets incorporate surface treatments to address irregularities and material stress-relieving processes for improved sealing in critical areas.
Technical Specifications
- Big End Pin Diameter: 16x10x42 mm
- Bore Diameter: 76.96 mm
- Compression Height: 20.40 mm
- Compression Ratio: 13.5:1
- Displacement: 250 cc
- Number Of Segments: 2
- Piston Pin Type: Standard
- Piston Type: Forged