PISTON KIT XT350 TT350 86.50, FORGED WOSSNER 8502D050
4.1 Trustpilot 99.9% positive on eBay
Free UK delivery 2–4 business days
Spread the cost with 
18+, T&Cs apply
Wossner 86.50mm Bore Piston Kit 8502D050. High-strength forged piston construction optimized for heat transfer and even load distribution. Features an elliptical design to prevent piston collapse. Manufactured in Germany. Bore Size: 86.50mm. Actual Bore Diameter: 86.43mm. Compression Ratio: OEM (9.00:1). Displacement: 346cc. Stroke: 59.60mm. Clearance: 0.07mm. Dome Volume: -2.80cm³. Compression Height: 22.20mm. Lock P/N: CW19. Pin P/N: WP050. Ring Set P/N: 865XSY.
- SKU
- 56-W4674+05.W
- Brand
- Wossner
- Availability
- In Stock (3)
- General Product Group
- Engine
- General Product Type
- Pistons & Kits
- General Size
- 86.5mm
- Variant Id
- 255877
FULL DESCRIPTION
Wossner Forged Piston Kit - 86.50mm Bore
Upgrade your engine's performance and durability with the Wossner 86.50mm Bore Piston Kit. This high-performance forged piston is engineered for exceptional strength and reliability, featuring an elliptical design to ensure even load distribution and reduce localized pressure.
Key Features:
- High-strength forged piston construction for superior durability.
- Elliptical design promotes even thrust load distribution, preventing premature wear and piston collapse.
- Optimized heat transfer within the combustion chamber enhances efficiency.
- Manufactured in Germany to exacting standards.
- Maintains the OEM compression ratio for reliable engine operation.
Specifications:
- Bore Size: 86.50mm
- Actual Bore Diameter: 86.43mm
- Compression Ratio: OEM
- OEM Compression Ratio: 9.00:1
- Displacement: 346cc
- Stroke: 59.60mm
- Clearance: 0.07mm
- Dome Volume: -2.80cm³
- Compression Height: 22.20mm
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.