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Ref : PRO00490A / 1094024001
Prox

Prox Forged Piston kit

Recommended retail price: 149,77 €127,30 €

Compatibility

Check that this part fits your motorcycle

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Features

PROX Forged Piston (manufacturer part number 01.4251.B) designed for the restoration of cross engine top ends. Machined from aluminum, this piston has a diameter of Ø 53.94 mm (oversize B) and features a domed head with standard compression. Built to replicate the original geometry, it is suitable for maintenance interventions and replacements during engine reassembly.

  • Piston diameter: Ø 53.940 mm (Ø 53.94)
  • Oversize: letter B — for oversize bores
  • Material: forged aluminum
  • Specificity: domed head, profile suitable for original combustion chambers
  • Compression: standard
  • Recommended associated parts: ring 260342, needle cage 400408, top end gaskets 602126

This PROX piston fits cross engines that require a Ø 53.94 mm in oversize B. It is supplied raw, ready to be installed after tolerance checks and cleaning. Maintain the torque specifications and manufacturer procedures during reassembly.

Compatible motorcycles (examples):

  • KAWASAKI KMX 125 (KMX125B) 2002 - 125 cc
  • KAWASAKI KMX 125 (KMX125A) 1998 - 125 cc
  • KAWASAKI KMX 125 (KMX125B) 2001 - 125 cc