Wossner WO-4091-DB Forged Piston Kit KTM 350 SX-F, KTM 350 XC-F, Husqvarna FC350 and Husqvarna FX350
Wossner WO-4091-DB KTM 350 SX-F/XC-F & Husqvarna FC350/FX350 Forged Piston Kit – 14.6:1 Compression
The Wossner WO-4091-DB Forged Piston Kit is a precision graded piston developed for selected KTM 350 SX-F, KTM 350 XC-F, Husqvarna FC350 and Husqvarna FX350 four-stroke motorcycles. Manufactured from premium forged aluminium alloy, it provides excellent strength, piston stability and durability for demanding motocross and cross-country use.
Featuring an 88.01 mm graded cylinder bore, 87.96 mm piston diameter, 57.50 mm stroke compatibility and a 14.6:1 compression ratio, the WO-4091-DB is intended for accurately measured cylinders requiring the first graded piston size. Its two-ring design, lateral gas ports and permanent skirt coating help provide effective sealing, reduced friction and dependable performance.
- Standard Series forged graded piston kit
- Suitable for KTM 350 SX-F 2023–2027
- Suitable for KTM 350 XC-F 2023–2027
- Suitable for Husqvarna FC350 2023–2026
- Suitable for Husqvarna FX350 2023–2026
- 88.01 mm graded cylinder bore
- 87.96 mm piston diameter
- 0.01 mm graded size
- 57.50 mm stroke compatibility
- 14.6:1 compression ratio
- Two-ring piston design
- Lateral gas ports
- Permanent anti-friction skirt coating
- TPR88.00/2 piston ring set
- WP072-SP wrist pin
- CW18 retaining clips
- Includes piston, rings, wrist pin and retaining clips
Important: Always confirm the motorcycle make, model, year and measured cylinder bore before ordering. This graded piston must be selected according to the measured cylinder diameter to achieve the correct piston-to-cylinder clearance. 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.