PISTON KIT 10-13 YZF450 97 A, FORGED WOSSNER 8776DA, 33D-11631-00-00
Wossner forged piston kit. Manufactured in Germany, this piston features a forged construction for increased strength and durability, with an elliptical design for a uniform bearing surface and even load distribution. It optimizes combustion chamber heat transfer to the cylinder walls, reducing localized pressure and preventing piston collapse. Bore: 97 mm. Actual Bore Size: 96.96 mm. Display: 449 cm³. Stroke: 60.80 mm. Clearance: 0.04 mm. Wossner Compression Ratio: OEM. OEM Compression Ratio: 12.50:1. Dome Volume: -5.40 cm³. Compression Height: 24.00 mm. Included Components: Piston Wossner 8776DA, Lock CW18, Pin WP072, Ring Set 970ADS-2, Rod P4032. Cross-Reference OEM Part Numbers: 33D-11631-00-00, 33D-116A0-00-00, 33D-11631-00-00 + 33D-11603-00-00 + 33D-11633-00-00 + 93450-19052-00.
- SKU
- 56-W261.A.WO
- Brand
- Wossner
- Availability
- In Stock (1)
FULL DESCRIPTION
Wossner Forged Piston Kit for Yamaha YZF450
Upgrade your Yamaha YZF450 with this high-performance forged piston kit from Wossner. Engineered for superior strength and optimized combustion, this kit is designed to enhance the performance and durability of your motorcycle's engine.
Key Features:
- Forged Construction: Provides exceptional strength and resistance to wear, ensuring longevity under demanding conditions.
- Optimized Heat Transfer: Designed to efficiently transfer combustion heat to the cylinder walls, promoting consistent engine operation and preventing overheating.
- Elliptical Piston Design: Creates a uniform bearing surface, reducing localized pressure and evenly distributing thrust loads. This design helps prevent piston collapse and ensures smooth operation.
- Manufactured in Germany: Reflects a commitment to precision engineering and high-quality manufacturing standards.
Specifications:
- Bore: 97 mm
- Actual Bore Size: 96.96 mm
- Displacement: 449 cm³
- Stroke: 60.80 mm
- Clearance: 0.04 mm
- Wossner Compression Ratio: OEM
- OEM Compression Ratio: 12.50:1
- Dome Volume: -5.40 cm³
- Compression Height: 24.00 mm
Included Components:
- Piston: Wossner 8776DA
- Lock: CW18
- Pin: WP072
- Ring Set: 970ADS-2
- Rod: P4032
Cross-Reference OEM Part Numbers:
- 33D-11631-00-00
- 33D-116A0-00-00
- 33D-11631-00-00 + 33D-11603-00-00 + 33D-11633-00-00 + 93450-19052-00


