Wiseco PK1041 Top End Kit +4.00mm Oversize 440cc Big Bore Honda TRX400EX, XR400R
+4.00mm Big Bore
Year Make Model
1999 - 2008 HONDA TRX400EX SPORTRAX
2009 - 2014 HONDA TRX400X
1996 - 2004 HONDA XR400R
Bore Diameter 89.00
Included Components Piston #4667M08900, Ring Set #3504XC, Wrist Pin #S553, CirClip #CW20, Gasket #W5942
Piston Diameter 88.95
Piston Material 2618
Piston Oversize 4.00
Product Series 4 Stroke Forged Series
Year Make Model
1999 - 2008 HONDA TRX400EX SPORTRAX
2009 - 2014 HONDA TRX400X
1996 - 2004 HONDA XR400R
Bore Diameter 89.00
Included Components Piston #4667M08900, Ring Set #3504XC, Wrist Pin #S553, CirClip #CW20, Gasket #W5942
Piston Diameter 88.95
Piston Material 2618
Piston Oversize 4.00
Product Series 4 Stroke Forged Series