Wossner WO-4100-D_ Forged Piston Kit KTM 500 EXC-F, Husqvarna FE 501, GASGAS EC 500F

Wossner WO-4100-DB KTM 500 EXC-F & Husqvarna FE 501 Forged Piston Kit – 13.5:1 Compression

The Wossner WO-4100-DB Forged Piston Kit is a Grade B forged piston engineered for selected KTM 500 EXC-F, Husqvarna FE 501 and GASGAS EC 500F models. Manufactured in Germany from premium forged aluminium, it provides exceptional strength, durability and consistent high-performance operation.

Featuring a 94.95mm piston diameter and a 13.5:1 Wossner compression ratio, the WO-4100-DB is designed for cylinders requiring the Grade B piston size to achieve the specified piston-to-cylinder clearance.

• Suitable for KTM 500 EXC-F 2020–2025
• Suitable for Husqvarna FE 501 2020–2025
• Suitable for GASGAS EC 500F 2024–2025
• 94.95mm piston diameter (Grade B)
• 13.5:1 Wossner compression ratio
• Premium forged aluminium construction
• Precision CNC machined
• Includes piston, piston rings, wrist pin and retaining clips
• Manufactured in Germany by Wossner

Important: Always confirm the motorcycle make, model, year and measured cylinder bore before ordering. This Grade B piston must be matched to the measured cylinder size. Professional engine assembly is recommended.

Notice: Product images may differ from the actual product. Images are provided for illustration purposes only and may show a representative item rather than the exact part supplied.