






ATHENA
TOP END PISTON KIT; KTM 300 EXC 17-22
Out of stock · stock as of Sep 3, 2026
Shipping calculated at checkout
30-day returns on unused parts
Details
Breathe new life into your 2-stroke engine with Athena's complete Top End Piston Kit. Engineered as the perfect top-end rebuild solution, this kit pairs a premium gravity-cast piston with Athena's industry-leading gasket kit to deliver outstanding performance, durability, and reliability. Precision CNC machining and a high-silicon aluminum alloy provide exceptional strength and consistent power, while the advanced gasket set ensures a leak-free seal for confidence on every ride. Complete top-end rebuild kit featuring a cast 2-stroke piston and premium gasket set Gravity-cast, high-silicon aluminum piston for superior strength and heat resistance Precision CNC-machined for OEM-quality fit and dependable performance Optimized piston profile promotes efficient combustion and smooth power delivery Premium piston rings provide excellent cylinder sealing while minimizing friction Advanced gasket materials and manufacturing deliver long-lasting sealing reliability Includes: Cast 2-Stroke Piston Piston Rings (2) Piston Pin / Wrist Pin Circlips Needle Bearing Complete Top End Gasket Kit Piston Size: 71.94mm Displacement: 300cc Compression Ratio: Standard Piston Head: Flat Piston Type: Cast Compression Height: 38.0mm Piston Pin: Biconical Big End Pin Diameter: 18 x 12 x 59mm
Specs
- Vehicle
- Offroad
- Weight Lb
- 0.0
- Shipping Class
- standard


