Wossner 75.98mm Piston Kit for 2006-2012 KTM 250 SX-F 8645DC

When you're pushing your KTM 250 SX-F to the limit, your piston has to handle extreme combustion pressures and sustained high RPMs without compromise. The Wossner 8645DC is engineered to deliver the reliability and efficiency you need, whether you're on the track or tackling demanding trail conditions. This complete kit eliminates guesswork with everything you need for a proper rebuild—piston, rings, pin, and clips included.

Built from 4032 T6 forged aluminum and manufactured in Germany, this piston combines proven strength-to-weight ratio with a permanent skirt coating that reduces friction and piston rock. The T6 heat-treatment ensures the piston maintains integrity under sustained high-load operation, while FEA-optimized design geometry maximizes efficiency throughout the rev range.

• 75.98mm bore diameter
• 4032 T6 forged aluminum
• T6 heat-treated
• Permanent skirt coating
• Reduces friction, rock
• FEA-optimized design
• Complete kit included
• German-engineered precision
• 2006–2012 KTM 250 SX-F
• Bolt-on installation