PISTON KIT 02-04 YZ125 56.00, WOSSNER 8072D200 YAMAHA MX
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This item is dispatched directly to you by our supplier. Supplier stock is separate from stock held at BTP.
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PISTON KIT 02-04 YZ125 56.00, WOSSNER 8072D200 YAMAHA MX is available to order. Please contact us to confirm availability and lead time.
Pickup currently unavailable at Braydon Trailers HQ
BTP – Your Trusted Trailer & ATV Specialists in the South West
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Description
Description
This Wossner piston kit features a 56.00mm bore and 55.94mm actual piston diameter, tailored for Yamaha YZ125 models from 2002 to 2004. With a +2.00mm oversize, this forged piston delivers robust performance, enhanced heat dissipation, and structural reliability in high-demand 2-stroke engine applications.
Features
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Forged piston construction ensures superior strength and longevity
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Facilitates optimal heat transfer from combustion chamber to cylinder walls
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Elliptical profile provides consistent bearing surface during thermal expansion
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Even distribution of thrust loads prevents localised pressure and piston collapse
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Manufactured in Germany
Specifications
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Bore: 56.00mm
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Piston Diameter: 55.94mm
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Display (cm³): 125
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Stroke (mm): 54.50
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Clearance (mm): 0.06
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Compression Height (mm): 28.00
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Wossner Compression Ratio: 2-stroke
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OEM Compression Ratio: 2-stroke
Cross-Reference OEM Part Numbers
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5NY-11631-01-D0
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5NY-11631-01-C0
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5NY-11631-01-B0
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5NY-11631-01-A0
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Ring: 5NY-11611-00-00
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Pin: 5UN-11633-00-00
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Circlip: 93450-16068-00
Vehicle Fitments
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Yamaha YZ125 2002–2004
Included Components
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Lock: CW15
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Pin: WP032
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Ring Set: RSB5600
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Rod: P2017
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Part Number: 56-W797.200.WO (Piston PN# 8072D200)
