PISTON KIT 68MM YAMAHA YFZ 350 BANSHEE 87-06, ATHENA S4C06800001B 392CC BIG BORE
ATHENA Cast Piston Ø 67.96 mm for Athena Big Bore Cylinder Kit S4C06800001B. Produced with cutting-edge CNC machining tools ensuring dimensional tolerances of less than 0.01 mm, Athena pistons are made of a special high-performance aluminum alloy with high silicon content. Some pistons' skirts are treated with a molybdenum disulfide coating to reduce friction. This piston for Athena Big Bore cylinder is equipped with piston rings produced in Japan with wear-resistant coatings (PVD or chromium nitride) to increase retention and durability. The kit contains the piston, pin, circlips, and piston rings. Technical features: Big End Pin Diameter 16x11x54 mm, Bore Diameter 67.96 mm, Compression Ratio STD, Net Weight 0.26 Kg, Number Of Segments 2, Piston Head Type Domed, Piston Pin Type Standard, Piston Type Melted. Partner Cross Reference codes: S4C06800001A, S4C06800001C, RINGS S41316152. Part No. 56-K173.68.PKA.
- SKU
- 56-K173.68.PKA
- Brand
- Athena
- Availability
- In Stock (2)
FULL DESCRIPTION
Athena 68mm Piston Kit for Big Bore Cylinders
Upgrade your engine's performance with this high-quality Athena 68mm Cast Piston Kit. Engineered in Italy, this piston is designed for Athena Big Bore cylinder kits, offering a direct replacement for your original component with enhanced capabilities.
Crafted from a special high-performance aluminum alloy with a high silicon content, Athena pistons provide the reliability of original equipment manufacturer (OEM) parts while delivering superior resistance and excellent performance. The cutting-edge CNC machining ensures dimensional tolerances of less than 0.01 mm, guaranteeing a precise fit and optimal function.
This piston features a domed head type and a smooth profile for regular flow and perfect flame propagation. Some piston skirts may also include a molybdenum disulfide coating, applied via screen printing, to further reduce friction, boosting performance and durability. The included piston rings, produced in Japan with wear-resistant coatings like PVD or chromium nitride, are designed for reduced friction against the cylinder, leading to higher performance and extended durability.
This comprehensive kit includes the piston, pin, circlips, and piston rings, all of which are replaceable and interchangeable. Athena rigorously tests its pistons on engine dynamometer benches and on the track to validate their performance, even under extreme conditions.
Key Features:
- Piston Diameter: 67.96 mm
- Piston Type: Melted
- Piston Head Type: Domed
- Piston Pin Type: Standard
- Number Of Piston Rings: 2
- Compression Ratio: STD
- Big End Pin Diameter: 16x11x54 mm
- Weight: 0.26 Kg
- Material: High-performance aluminum alloy with high silicon content
- Manufacturing: Precision CNC machined for tight tolerances
- Kit Includes: Piston, piston pin, circlips, and piston rings
Please note: Products intended for competitive use or applications exceeding standard road regulations are intended exclusively for competitive use. Athena disclaims responsibility for any use contrary to national regulations.


