Wossner WO-4077-DC Forged Piston Kit KTM, Husqvarna and GasGas 250

Wossner WO-4077-DC Premium Series Forged Piston Kit for KTM, Husqvarna & GasGas 250 Four-Stroke – 81.02 mm

The Wossner WO-4077-DC Forged Piston Kit is a Premium Series graded forged piston designed for selected KTM, Husqvarna and GasGas 250cc four-stroke motocross and cross-country motorcycles. Manufactured from premium 2618 forged aluminium using Wossner's Double Bridge Forging process, it features a gas-ported, two-ring design for superior strength and reliability under extreme racing conditions.

Featuring an 81.02 mm graded cylinder bore, 80.97 mm finished piston diameter, 48.50 mm stroke compatibility, 19.50 mm compression height and a 14.4:1 compression ratio, the WO-4077-DC is intended for engines requiring the second graded piston size. :contentReference[oaicite:2]{index=2}

• Premium Series forged graded piston kit
• Suitable for KTM 250 SX-F 2023–2027
• Suitable for KTM 250 XC-F 2023–2027
• Suitable for Husqvarna FC 250 2023–2026
• Suitable for Husqvarna FE 250 2024–2026
• Suitable for GasGas MC 250F 2024–2025
• Suitable for GasGas EX 250F 2024–2025
• 81.02 mm graded cylinder bore
• 80.97 mm finished piston diameter
• 48.50 mm stroke compatibility
• 19.50 mm compression height
• 14.4:1 Wossner compression ratio
• Double Bridge Forging construction
• Gas-ported piston design
• Two-ring piston configuration
• RIK81.00A/2 piston ring set
• WP070-SP DLC wrist pin
• CW16 retaining clips
• Includes piston, piston rings, wrist pin and retaining clips

Important: Always confirm your motorcycle make, model, year and measured cylinder bore before ordering. Graded pistons should be selected according to the measured cylinder size to achieve the correct piston-to-cylinder clearance.

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.