ATHENA Piston Kit with Gaskets - 87.96 mm - SXF350 P5F0880090001B

If you're running a KTM SXF350 at the edge of its limits, piston wear directly impacts combustion efficiency, power delivery, and engine longevity. The ATHENA Piston Kit delivers OE-equivalent reliability with measurably superior durability—critical when you're pushing hard on the track or trail. This is a direct-bolt replacement that restores lost compression and responsiveness without compromising the integrity of your 4-stroke powerplant.

Every piston in this kit is reverse-extruded and CNC-machined to exacting tolerances in Japan, ensuring consistent bore fit and minimal blow-by. The included piston rings feature PVD and chromium nitride coatings that reduce friction losses while extending service intervals—a combination that separates quality rebuild kits from budget alternatives.

• Bore diameter: 87.96 mm
• KTM SXF350 fitment
• High-silicon aluminum alloy
• Reverse-extruded construction
• CNC-machined precision
• Includes gasket set
• PVD-coated piston rings
• Chromium nitride segments
• Reduced friction design
• OE-equivalent reliability
• Made in Japan
• Bolt-on installation