The Wiseco Steel Engine Exhaust Valve - Yamaha WRF400 1998-2000, YZF400 1998-1999, YZF426 2000 is part of the latest performance part range from Wiseco.

High-Performance Valve from Wiseco.

Features:

Stronger and more reliable than OEM because they're forged as one unit, rather than pieced together like stock valves

Treated with either CVD or CNI (depending on the application), both applications are wear- and friction-reducers that resist heat penetration as well

Valves are manufactured to exacting tolerances from the highest-grade material; coated for longevity and peak performance

Sold individually

To fit:

YAMAHA WR 400 F 1998 American Models

YAMAHA WR 400 F 1998 European Models

YAMAHA WR 400 F 1999 American Models

YAMAHA WR 400 F 1999 European Models

YAMAHA WR 400 F 2000 American Models

YAMAHA WR 400 F 2000 European Models

YAMAHA YZ 400 F 1998 American Models

YAMAHA YZ 400 F 1998 European Models

YAMAHA YZ 400 F 1999 American Models

YAMAHA YZ 400 F 1999 European Models

YAMAHA YZ 426 F 2000 American Models

YAMAHA YZ 426 F 2000 European Models

Manufacturer part number: WVES006

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