PISTON KIT 87-09 YFZ350 65.00, WOSSNER 8075D100 YAMAHA ATV
4.1 Trustpilot 99.9% positive on eBay
Free UK delivery 2–4 business days
Wossner forged piston kit with a 64.100mm bore (64.94mm actual) is designed for Yamaha two-stroke models. Engineered in Germany, it offers enhanced structural integrity and thermal management. The elliptical design allows for uniform bearing surface distribution during thermal expansion, reducing localised stress and minimising the risk of piston collapse. Features include forged piston construction for high strength and durability, engineered for optimal heat transfer, and an elliptical profile that promotes even pressure distribution under expansion. Specifications: Bore size 64.100mm (64.94mm), display volume 347 cm³, stroke 54.00 mm, clearance 0.06 mm, compression height 36.00 mm, dome volume not specified, theoretical weight not specified, and compression ratio 2-stroke (Wossner and OEM). Cross-reference OEM part numbers: Piston 8075D100, Lock CW16, Pin WP027, Ring Set RSB6500 x 2. Weight 294g.
- SKU
- 56-W513+100.WO
- Brand
- Wossner
- Availability
- Out of Stock
- General Product Group
- Engine
- General Product Type
- Pistons & Kits
- General Size
- 65mm
- Variant Id
- 256626
FULL DESCRIPTION
Wossner Forged Piston Kit - Enhanced Performance and Durability
This Wossner forged piston kit features a precision-engineered elliptical design for superior performance and longevity. Manufactured in Germany, this kit is built to withstand demanding conditions, offering enhanced structural integrity and optimized thermal management for your motorcycle's engine.
The advanced elliptical profile ensures uniform bearing surface distribution, even under the stress of thermal expansion. This minimizes localized stress points, significantly reducing the risk of piston failure and promoting a more consistent engine operation. The forged construction provides exceptional strength and durability, making it an ideal upgrade for high-performance applications.
Key Features:
- Forged piston construction for superior strength and durability.
- Engineered for optimal heat transfer from the combustion chamber to the cylinder walls.
- Elliptical piston profile promotes even pressure distribution during thermal expansion.
- Manufactured to high standards in Germany.
Specifications:
- Bore Size: 64.100mm (actual 64.94mm)
- Display Volume: 347 cm³
- Stroke: 54.00 mm
- Clearance: 0.06 mm
- Compression Height: 36.00 mm
- Compression Ratio: 2-stroke (Wossner and OEM compatible)
QUESTIONS? JUST ASK
Talk to John or Phil. Real people, Monday to Friday, 10:00 to 17:00.
Call or email us with your make, model and year 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.