PISTON KIT 87-08 YFZ350 64.75, WOSSNER 8075D075 YAMAHA ATV
4.1 Trustpilot 99.9% positive on eBay
Free UK delivery 2–4 business days
Spread the cost with 18+, T&Cs apply
Wossner forged piston kit with a 64.75mm bore (64.69mm actual). Manufactured in Germany, this piston is designed for high durability and thermal performance with an elliptical design for even load distribution. Features include forged piston construction, engineered combustion heat transfer, and an elliptical profile for consistent pressure distribution. Specifications: bore size 64.75mm (64.69mm), display volume 347 cm³, stroke 54.00 mm, clearance 0.06 mm, compression height 36.00 mm, and compression ratio 2-stroke (Wossner and OEM). Includes cross-reference OEM part numbers: Piston 8075D075, Lock CW16, Pin WP027, Ring Set RSB6475 x 2. Weight 312g.
- SKU
- 56-W513+075.WO
- Brand
- Wossner
- Availability
- In Stock (1)
- General Product Group
- Engine
- General Product Type
- Pistons & Kits
- General Size
- 64.75mm
- Variant Id
- 256623
FULL DESCRIPTION
Wossner Forged Piston Kit 64.75mm Bore
This high-performance Wossner forged piston kit is engineered for durability and optimal thermal management in demanding applications. Manufactured in Germany, this piston features a precise 64.75mm bore (64.69mm actual) designed to enhance combustion efficiency and power output. Its advanced elliptical profile ensures even load distribution across the piston surface during operation, significantly reducing localised stress and the risk of piston collapse, even under extreme conditions.
Key Features
- Forged piston construction for superior strength and reliability.
- Designed for efficient transfer of combustion heat.
- Elliptical piston profile promotes consistent pressure distribution and reduces wear.
- Precision manufactured in Germany.
Specifications
- Bore size: 64.75mm (64.69mm actual)
- Display volume: 347 cm³
- Stroke: 54.00 mm
- Clearance: 0.06 mm
- Compression height: 36.00 mm
- Compression ratio: 2-stroke (compatible with Wossner and OEM specifications)
Component Details
- Piston part number: 8075D075
- Lock type: CW16
- Wrist pin: WP027
- Ring set: RSB6475 (x2 required)
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.


