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1998-1999 YZ400F/WR400F

  • Machined from 2618 T6 high tensile forged aluminum

  • Dome/Dish features smooth flowing radii and require no deburring or preparation

  • JE designs are specifically engineered for extreme applications including professional competition

  • Pins, pin fitment, lock and rings included
1998-1999 YZ400F/WR400F
Std Bore: 92mm
Piston
Kit #
Disp. Bore
Size
Over
Size
Comp
Ratio
Gram
Wt (g)
Skirt
Style
Ring # Pin # Lock # Gasket # Sleeve # Footnote
157595 399cc 92mm STD 13.5:1 252 FSR XC9200 708-2050-16-93C 708-050-MW JC7400 M
157596 417cc 94mm +2mm 13.5:1 265 FSR XC9400 708-2050-16-93C 708-050-MW JC7400 L

- Denotes part # has been issued a new part #. A list referencing old part #s to their new counterparts will be available shortly.


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