PISTON KIT XT350 TT350 86.00, FORGED WOSSNER 8502DA
4.1 Trustpilot 99.9% positive on eBay
Free UK delivery 2–4 business days
Wossner 86mm Bore Piston Kit (Part No. 8502DA) is a high-performance forged piston engineered for strength and durability, optimizing heat transfer and featuring an elliptical design for even load distribution. Manufactured in Germany, this piston maintains the OEM compression ratio. Features include high-strength forged construction, optimized heat transfer for improved combustion efficiency, and an elliptical design for even thrust load distribution. Specifications: Bore Size 86mm, Actual Bore Diameter 85.93mm, Compression Ratio OEM 9.00:1, Displacement 346cc, Stroke 59.60mm, Clearance 0.07mm, Dome Volume -2.80cm³, Compression Height 22.20mm. Cross-reference OEM part numbers: Lock P/N CW19, Pin P/N WP050, Ring Set P/N 860XSY. Weight: 418g.
- SKU
- 56-W4674+00.W
- Brand
- Wossner
- Availability
- Out of Stock
- General Product Group
- Engine
- General Product Type
- Pistons & Kits
- General Size
- 86mm
- Variant Id
- 255876
FULL DESCRIPTION
Wossner 86mm Forged Piston Kit for Yamaha TT350 and XT350
Enhance your engine's performance and durability with this high-quality Wossner 86mm forged piston kit. Engineered for Yamaha TT350 and XT350 motorcycles, this kit is designed to optimize combustion and withstand demanding riding conditions.
Key Features:
- High-Strength Forged Construction: Crafted from premium materials for superior strength and longevity.
- Optimized Heat Transfer: Features a design that promotes efficient heat management within the combustion chamber, leading to improved performance.
- Elliptical Piston Design: Engineered to distribute thrust loads evenly, reducing localized pressure and preventing piston collapse for consistent operation.
- German Manufacturing: Precision-built in Germany to exacting standards, ensuring top-tier quality and reliability.
- Maintains OEM Compression Ratio: Designed to work seamlessly with your engine, preserving the original compression ratio for reliable performance.
Specifications:
- Bore Size: 86.00mm
- Actual Bore Diameter: 85.93mm
- Compression Ratio: OEM (9.00:1)
- Displacement: 346cc
- Stroke: 59.60mm
- Clearance: 0.07mm
- Dome Volume: -2.80cm³
- Compression Height: 22.20mm
Included Components:
- Lock Piston Pin Retainer (CW19)
- Piston Pin (WP050)
- Ring Set (860XSY)
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.