Name: Piston Kit XT350 TT350 86.50, Forged Wossner 8502D050
Brand: Wossner
SKU: 56-W4674+05.W

Piston Kit XT350 TT350 86.50, Forged Wossner 8502D050

Wossner
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Description

The Wossner 86.50mm Bore Piston Kit (Part No. 8502D050) is a high-performance forged piston designed for Yamaha TT350 and XT350 models. Engineered for strength and durability, it optimizes heat transfer within the combustion chamber and features an elliptical design to ensure even load distribution, reducing localized pressure and preventing piston collapse. Manufactured in Germany, this piston maintains the OEM compression ratio for reliable engine performance.

Features

High-strength forged piston construction
Optimized heat transfer for improved combustion efficiency
Elliptical design for even thrust load distribution
Manufactured in Germany

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

Cross-Reference OEM Part Numbers

Lock P/N: CW19
Pin P/N: WP050
Ring Set P/N: 865XSY

Vehicle Fitments

Yamaha TT350 (1985-1988)
Yamaha XT350 (1985-2000)

Vehicle Compatibility

Please check the exact model and year before ordering.

Manufacturer	Model	Years
YAMAHA	XT 350	1985-2000
YAMAHA	TT 350	1985-1988
YAMAHA	XT 350	1985-1993
YAMAHA	TT 350	1985-1993

Piston Kit XT350 TT350 86.50, Forged Wossner 8502D050

Wossner
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The Wossner 86.50mm Bore Piston Kit (Part No. 8502D050) is a high-performance forged piston designed for Yamaha TT350 and XT350... Read more

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SKU: 56-W4674+05.W

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Description

The Wossner 86.50mm Bore Piston Kit (Part No. 8502D050) is a high-performance forged piston designed for Yamaha TT350 and XT350 models. Engineered for strength and durability, it optimizes heat transfer within the combustion chamber and features an elliptical design to ensure even load distribution, reducing localized pressure and preventing piston collapse. Manufactured in Germany, this piston maintains the OEM compression ratio for reliable engine performance.

Features

High-strength forged piston construction
Optimized heat transfer for improved combustion efficiency
Elliptical design for even thrust load distribution
Manufactured in Germany

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

Cross-Reference OEM Part Numbers

Lock P/N: CW19
Pin P/N: WP050
Ring Set P/N: 865XSY

Vehicle Fitments

Yamaha TT350 (1985-1988)
Yamaha XT350 (1985-2000)

Vehicle Compatibility

Please check the exact model and year before ordering.

Manufacturer	Model	Years
YAMAHA	XT 350	1985-2000
YAMAHA	TT 350	1985-1988
YAMAHA	XT 350	1985-1993
YAMAHA	TT 350	1985-1993

Shipping & Delivery

How long will my item take to arrive?

Orders are typically dispatched within 1 working day and are shipped on a 24hour (non-guaranteed) service.

Where do you ship to?

We currently only ship orders within the UK.

How can I track my order?

Once your order has been dispatched, you will receive a tracking code. Tracking information is emailed to the email address that was provided when placing the order.

Can I collect my order?

Unfortunately we do not offer order collections from our fulfilment centre.