Piston Kit KTM 400 Exc 89.00, Forged Wossner 8580DA 57530007000

Piston Kit KTM 400 Exc 89.00, Forged Wossner 8580DA 57530007000. Find the product specifications and compatibility information below.

Product details

• Product: Piston Kit KTM 400 Exc 89.00, Forged Wossner 8580DA 57530007000
• Part number: 56-W4733+00A.WO
• Brand: Wossner
• Wossner forged piston kit designed for high-performance applications, offering superior strength and optimized heat transfer. The elliptical design ensures a uniform bearing surface under heat expansion, reducing localized pressure and preventing piston collapse. Manufactured in Germany for precision and durability.
• Forged piston for enhanced strength and durability
• Optimized heat transfer to cylinder walls for improved performance
• Elliptical design for even thrust load distribution
• Manufactured in Germany
• Bore Size: 89mm
• Actual Bore: 88.94mm
• Display (cm³): 398
• Stroke (mm): 64.00
• Clearance (mm): 0.06
• Wossner Compression Ratio: OEM
• OEM Compression Ratio: 11.00:1
• Dome Volume (cm³): +7.00
• Compression Height (mm): 27.50
• Theoretical Weight: N/A
• Lock Part Number: CW20
• Pin Part Number: WP038
• Ring Set Part Number: 890XSY
• Part Number: 56-W4733+00A.WO
• Cross-Reference OEM Part Numbers
• 57530007000

Vehicle fitment

Applications listed in the supplier fitment data:

• KTM LC4 400cc — 1998–2001

Match your exact make, model, year and specification before ordering.

Why buy from FDY Performance?

FDY Performance is a UK motorcycle and ATV parts specialist. We help riders find parts with clear specifications, vehicle fitment information where available and support before ordering.

Need help choosing the right part?

Contact us with your bike make, model and year, plus the part number shown above, and we can help you check compatibility.

• Call: 07765 534854
• Email: fdy@fdyperformance.com
• Website: www.fdyperformance.com