PISTON KIT 10-13 YZF450 13.5 A, COMP 13.5:1 WOSSNER 8783DA, 33D-11631-00-00
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Wossner high-compression forged piston kit designed for Yamaha YZ450F Fuel Injection models 2010-2013. Manufactured in Germany, this piston offers superior strength and an optimized design for efficient combustion chamber heat transfer. The elliptical shape ensures an even bearing surface, reducing localized pressure and evenly distributing thrust loads to prevent piston collapse. Features include high-compression design, forged construction, optimized heat transfer, and elliptical design for uniform bearing surface and even load distribution. Specifications: Bore 97 mm, Actual Bore Size 96.96 mm, Display 449 cm³, Stroke 60.80 mm, Clearance 0.04 mm, Wossner Compression Ratio 13.50:1, OEM Compression Ratio 12.50:1, Dome Volume -2.10 cm³, Compression Height 24.00 mm. Included Components: Piston Wossner 8783DA, Lock CW18, Pin WP072, Ring Set 970ADS, 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.HC
- Brand
- Wossner
- Availability
- In Stock (2)
Fitments (8)
| Make | Model | Year |
|---|---|---|
| YAMAHA | YZ 450F | 2010 |
| YAMAHA | YZ 450F | 2011 |
| YAMAHA | YZ 450F | 2012 |
| YAMAHA | YZ 450F | 2013 |
| YAMAHA | YZF 450 | 2010 |
| YAMAHA | YZF 450 | 2011 |
| YAMAHA | YZF 450 | 2012 |
| YAMAHA | YZF 450 | 2013 |
- General Product Group
- Engine
- General Product Type
- Pistons & Kits
- General Size
- 13.5mm
- Variant Id
- 255288
FULL DESCRIPTION
Wossner High-Compression Forged Piston Kit
Enhance your motorcycle's performance with this Wossner high-compression forged piston kit. Engineered for superior strength and durability, this kit is designed for optimal combustion efficiency and power output. Manufactured with precision in Germany, Wossner pistons utilize advanced design principles to ensure reliability and performance under demanding conditions.
Key Features:
- High-Compression Design: Significantly increases engine power and responsiveness with a 13.5:1 compression ratio, compared to the OEM 12.5:1.
- Forged Construction: Provides exceptional strength and resilience, capable of withstanding higher combustion pressures and temperatures.
- Optimized Heat Transfer: The piston's design promotes efficient transfer of combustion chamber heat, contributing to consistent performance and longevity.
- Elliptical Shape: Ensures a uniform bearing surface, distributing thrust loads evenly and preventing localized pressure points for reduced wear and potential piston collapse.
- German Manufacturing: Built to exacting standards in Germany, guaranteeing high quality and precision engineering.
Specifications:
- Bore: 97 mm
- Actual Bore Size: 96.96 mm
- Displacement: 449 cm³
- Stroke: 60.80 mm
- Piston Clearance: 0.04 mm
- Wossner Compression Ratio: 13.50:1
- Dome Volume: -2.10 cm³
- Compression Height: 24.00 mm
Included Components:
- Piston: Wossner 8783DA
- Piston Lock: CW18
- Piston Pin: WP072
- Piston Ring Set: 970ADS
- Connecting 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
QUESTIONS? JUST ASK
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Check the fitment table on this page against your make, model and year. Not sure? Call or email us and we will check it for you before you order.
Yes. We ship from the UK. Orders ship within 3 working days, then delivery to the United States takes 5–8 business days. The delivery price is shown at checkout before you pay. Delivery details
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