PISTON KIT 88-13 CRF XR50 39.0, WISECO 4798M03900 HONDA MX

Part No. 56-W4798+0.00 (phoenixmotos.com)
Honda Wiseco 39mm Standard Bore Piston. Fits 04-09 Honda CRF50 and 88-03 Honda XR50. 11:1 Compression. Comes with piston/rings/wrist pin & circlips. Part 4798M03900
Cross reference numbers. NAMURA NX-10051, 13101-GBZ-701, PROX 01.1040, wiseco 4798M03900