PISTON KIT 03-04 KTM250 66.40, WOSSNE 8082DA FORGED MX 55430007000
PISTON KIT 03-04 KTM250 66.40, WOSSNE 8082DA FORGED MX 55430007000
This Wossner forged piston kit is designed for a wide range of 250cc two-stroke models across KTM, Gas-Gas, Husaberg, and Husqvarna brands. With a bore size of 66.40mm and a piston diameter of 66.34mm, it provides reliable performance, efficient thermal management, and excellent structural integrity for standard bore engine configurations.
Features
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Forged construction delivers superior strength and durability
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Enhanced heat transfer from the combustion chamber to cylinder walls for improved thermal efficiency
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Elliptically designed piston distributes load uniformly, reducing localised pressure and minimising risk of piston collapse
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Manufactured in Germany for consistent precision and high quality
Specifications
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Bore Size: 66.40 mm
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Piston Diameter: 66.34 mm
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Compression Height: 38.00 mm
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Stroke: 72.00 mm
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Clearance: 0.06 mm
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Compression Ratio: 2-stroke (Wossner and OEM)
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Displacement: 249 cm³
Cross-Reference OEM Part Numbers
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Wossner Piston Kit: 8082DA
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Alternate Piston Kit Reference: 56-W824.A.WO
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Lock: CW18
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Pin: WP033
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Ring Set: RSB6640
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Rod: P2023
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OEM Part Numbers: 55430007000, 824M06640
Vehicle Fitments
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KTM SX 250 2003–2004
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KTM EXC 250 2006–2018
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Gas-Gas EC 250 1997–2014
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Husaberg TE 250 2013–2014
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Husqvarna TC 250 2014–2018
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Husqvarna TE 250 2014–2018
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Husqvarna TE 250i 2018