PISTON KIT SX-F450 KTM HC 97, FORGED WOSSNER 8715DA 77330007500
4.1 Trustpilot 99.9% positive on eBay
Free UK delivery 2–4 business days
Wossner forged piston kit with a 97.00mm bore and 96.96mm diameter. This high-compression piston 13.50:1 enhances performance and durability. Manufactured in Germany, it ensures optimal heat transfer to cylinder walls. Its elliptical design provides a uniform bearing surface under heat expansion, reducing localized pressure and evenly distributing thrust loads to prevent piston collapse. Features include forged construction for superior strength, high-compression ratio for increased performance, optimized heat transfer for efficient combustion, and elliptical design for uniform load distribution. Specifications: Bore 97.00mm, Diameter 96.96mm, Display (cm³) 449, Stroke (mm) 68.80, Clearance (mm) 0.04, Wossner Compression Ratio 13.50:1, OEM Compression Ratio 12.50:1, Dome Volume (cm³) +1.10, Compression Height (mm) 21.30. Cross-reference OEM Part Numbers: Wossner Piston KTM SX-F450 (PN# 8715DA), Lock P/N: CW19, Pin P/N: WP071, Ring Set P/N: 970ADS-2, Connecting Rod Kit P/N: P4017, OEM References: 77330007500, 4938M09700.
- SKU
- 56-W244.A.WO
- Brand
- Wossner
- Availability
- Out of Stock
Fitments (20)
| Make | Model | Year |
|---|---|---|
| KTM | 450 SM R | 2008 |
| KTM | 450 SM R | 2009 |
| KTM | 450 SM R | 2010 |
| KTM | 450 SM R | 2011 |
| KTM | 450 SM R | 2012 |
| KTM | 450 SMR | 2008 |
| KTM | 450 SMR | 2009 |
| KTM | 450 SMR | 2010 |
| KTM | 450 SMR | 2011 |
| KTM | 450 SMR | 2012 |
| KTM | 450 SX | 2009 |
| KTM | 450 SX | 2010 |
| KTM | 450 SX ATV | 2009 |
| KTM | 450 SX ATV | 2010 |
| KTM | 450 SX-F | 2007 |
| KTM | 450 SX-F | 2008 |
| KTM | 450 SX-F | 2009 |
| KTM | 450 SX-F | 2010 |
| KTM | 450 SX-F | 2011 |
| KTM | 450 SX-F | 2012 |
- General Product Group
- Engine
- General Product Type
- Pistons & Kits
- General Size
- 97mm
- Variant Id
- 255177
FULL DESCRIPTION
Wossner Forged High Compression Piston Kit for KTM SX-F450
Elevate your KTM SX-F450's performance with this premium forged piston kit from Wossner. Engineered for power and durability, this kit is designed to enhance combustion efficiency and provide a significant performance boost. Manufactured to exacting standards in Germany, Wossner pistons are renowned for their quality and advanced design.
The high-compression design delivers increased horsepower and torque, while the forged construction ensures exceptional strength to withstand the demands of high-performance riding. Wossner's innovative elliptical design promotes uniform load distribution, optimizing the bearing surface under thermal expansion. This reduces localized pressure points, preventing piston collapse and ensuring even thrust load distribution for extended engine life.
Key Features:
- Forged construction for superior strength and reliability.
- High compression ratio (13.50:1) for enhanced engine performance.
- Optimized heat transfer for efficient combustion and reduced engine stress.
- Elliptical piston design for uniform load distribution and improved durability.
- Precision manufactured in Germany.
Specifications:
- Bore: 97.00mm
- Diameter: 96.96mm
- Displacement: 449 cm³
- Stroke: 68.80mm
- Piston to Cylinder Clearance: 0.04mm
- Wossner Compression Ratio: 13.50:1
- OEM Compression Ratio: 12.50:1
- Dome Volume: +1.10 cm³
- Compression Height: 21.30mm
Included Components:
- Wossner Piston Kit Part Number: 8715DA
- Lock Ring Part Number: CW19
- Wrist Pin Part Number: WP071
- Ring Set Part Number: 970ADS-2
- Connecting Rod Kit Part Number: P4017
Cross-Reference OEM Part Numbers:
- 77330007500
- 4938M09700
QUESTIONS? JUST ASK
Talk to John or Phil. Real people, Monday to Friday, 10:00 to 17:00.
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.
UK delivery is £4.99, or free on orders over £60. Orders ship within 3 working days, then delivery takes 2–4 business days. Delivery details
Yes. You have 14 days from delivery to return it, unused and in its original packaging. Contact us first and we will send you the return instructions. Returns policy
By card, PayPal, Apple Pay or Google Pay, or spread the cost with Klarna. Payment is taken securely by Stripe, and the options for your order are shown at checkout.
More answers in our FAQ.
Trade pricing available
Buying parts for your business? Apply for a 2BrosParts trade account.