PISTON KIT 87-90 TRX250 66.00, WOSSNER 8189DA HONDA ATV
PISTON KIT 87-90 TRX250 66.00, WOSSNER 8189DA HONDA ATV
Wossner forged piston kit for Honda ATC250R and TRX250R models from 1987 to 1990, featuring a standard bore size of 66.00 mm. This piston is engineered for high-performance 2-stroke engine applications and designed to withstand thermal and mechanical stress. Its elliptical design provides even expansion, reducing localised pressure and enhancing durability. Manufactured in Germany with high-precision standards.
Features
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Forged piston construction for enhanced strength and reliability
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Designed to improve heat transfer from combustion chamber to cylinder wall
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Elliptical profile for even bearing contact during thermal expansion
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Engineered for 2-stroke engines
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Made in Germany
Specifications
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Bore: 66.00 mm
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Actual Bore Diameter: 65.94 mm
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Compression Height: 45.00 mm
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Display Volume: 246 cm³
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Stroke: 86.00 mm
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Clearance: 0.09 mm
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Compression Ratio: 2-stroke (Wossner and OEM)
Cross-Reference OEM Part Numbers
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Piston Kit Part No.: 8189DA
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Lock P/N: CW18
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Pin P/N: WP033
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Ring Set P/N: RSB6600 (x2)
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Alternate Part No.: 56-W562.P0.WO
Vehicle Fitments
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Honda ATC250R (1987–1990)
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Honda TRX250R (1987–1990)