Piston Kit 99-08 Trx XR 85.00, Forged Wossner 8702DB 400

Piston Kit 99-08 Trx XR 85.00, Forged Wossner 8702DB 400. Find the product specifications and compatibility information below.

Product details

• Product: Piston Kit 99-08 Trx XR 85.00, Forged Wossner 8702DB 400
• Part number: 56-W4628.B.WO
• Brand: Wossner
• Forged construction for superior strength and durability
• Optimized heat transfer to cylinder walls
• Elliptical design for uniform bearing surface under heat expansion
• Increased compression ratio for improved engine performance
• Made in Germany
• Bore: 85.01mm (84.94mm actual)
• Display: 397 cm³
• Stroke: 70.00mm
• Clearance: 0.06mm
• Wössner Compression Ratio: 12.50:1
• OEM Compression Ratio: 10.00:1
• Dome Volume: +8.40 cm³
• Compression Height: 26.20mm
• Cross-Reference OEM Part Numbers
• Wössner Piston: 8702DB
• Lock: CW20
• Pin: WP052
• Ring Set: 850XSY
• Rod: P4021

Vehicle fitment

Applications listed in the supplier fitment data:

• HONDA XR 400cc — 1996–2004
• HONDA XR R 400cc — 1996–2004
• HONDA TRX X 400cc — 2009–2014
• HONDA TRX EX 400cc — 1999–2008
• HONDA TRX EX 400cc — 2009–2014

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