






ATHENA
TOP END PISTON KIT; KTM SX 300 23-24
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. This all-in-one rebuild kit combines a premium gravity-cast piston with Athena's precision-engineered top-end gasket kit, giving you everything needed for a reliable, high-performance rebuild. Manufactured from a high-silicon aluminum alloy and CNC machined for exceptional accuracy, the piston delivers outstanding durability, smooth power delivery, and OEM-quality reliability, while the premium gasket set provides a dependable seal for long-lasting performance. Complete top-end rebuild kit with 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 reducing friction Advanced gasket materials deliver reliable, leak-free sealing under demanding conditions Includes: Cast 2-Stroke Piston Piston Rings (2) Piston Pin / Wrist Pin Circlips Needle Bearing Complete Top End Gasket Kit Specs / Notes Piston Size: 71.94mm Displacement: 300cc Compression: 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


