MODEL

YEAR

PISTON KIT

RING KIT

TOP END GASKET KIT

FULL SET GASKET KIT

TOP END REPAIR KIT

BASE GASKET

EXHAUST GASKET 10 PACK

BEARINGS

BORE (MM)

PW50

1981-2009

NX-40005

NX-40005R

NX-40055T

NX-40055F

NX-40005K

09-B410

40

COMPRESSION 6.0:1

NX-40005-1

NX-40005-1R

NX-40005-1K

40.25

NX-40005-2

NX-40005-2R

NX-40005-2K

40.50

NX-40005-3

NX-40005-3R

NX-40005-3K

40.75

NX-40005-4

NX-40005-4R

NX-40005-4K

41

NX-40005-5

NX-40005-5R

NX-40005-5K

41.25

NX-40005-6

NX-40005-6R

NX-40005-6K

41.50

PW80

1983-2006*

NX-40008

NX-40008R

NX-40008T

NX-40008F

NX-40008K

09-B042-2

47

COMPRESSION 6.6:1

NX-40008-2

NX-40008-2R

NX-40008-2K

47.50

NX-40008-4

NX-40008-4R

NX-40008-4K

48

NX-40008-6

NX-40008-6R

NX-40008-6K

48.50

YZ80

1988-1992

N/A

N/A

NX-40081T

NX-40081F

N/A

N/A

N/A

(1988-1992)

(1988-1992)

YZ80

1993-2002*

NX-40080

NX-10080R

NX-40080T

NX-40080F

NX-40080K

09-B012-1

46.95

COMPRESSION 8.2:1

NX-40080-B

NX-10080R

NX-40080-BK

46.96

(CERAMIC COMPOSITE CYL)

NX-40080-C

NX-10080R

NX-40080-CK

46.97

NX-40080-2

NX-10080-2R

NX-40080-2K

47.44

NX-40080-4

NX-10080-4R

NX-40080-4K

48

NX-40080-6

NX-10080-6R

NX-40080-6K

48.50

*USES NX-10080 RINGS

YZ85

2002-2009

NX-40080-2

NX-10080-2R

NX-40085T

NX-40085F

NX-40085K

09-B012-1

47.44

COMPRESSION 8.2:1

NX-40080-2B

NX-10080-2R

NX-40085-BK

47.45

(CERAMIC COMPOSITE CYL)

NX-40080-2C

NX-10080-2R

NX-40085-CK

47.46

NX-40080-4

NX-10080-4R

NX-40085-2K

48

NX-40080-6

NX-10080-6R

NX-40085-4K

48.50

USES NX-10080-2 RINGS

YZ125

1986-1988

N/A

N/A

NX-40001T

NX-40001F

N/A

N/A

N/A

(19861988)

(1986-1988)

YZ125

1989

N/A

N/A

NX-40002T

NX-40002F

N/A

N/A

N/A

1989

1989

YZ125

1990-1991

N/A

N/A

NX-40003T

NX-40003F

N/A

N/A

N/A

(1990-1991)

(1990-1991)

YZ125

1992-1993

N/A

N/A

NX-40004T

NX-40004F

N/A

N/A

N/A

(1992-1993)

(1992-1993)

YZ125

1994-1997

N/A

N/A

NX-40005T

NX-40005F

N/A

N/A

N/A

(1994-1997)

(1994-1997)

YZ125

1998-2001

NX-10003

NX-20000R

NX-40000T

NX-40000F

NX-40000K

09-B038-1('98-00)

53.94

COMPRESSION 8.9:1

NX-10003-B

NX-20000R

COMING SOON

09-B001-1('01)

53.95

(CERAMIC COMPOSITE CYL)

NX-10003-C

NX-20000R

COMING SOON

YZ125

2002-2004

NX-40001

NX-20000R

NX-40007T

NX-40007F

NX-40001K

09-B001-1

53.94

COMPRESSION 10.8:1

NX-40001-B

NX-20000R

NX-40001-BK

53.95

(CERAMIC COMPOSITE CYL)

NX-40001-C

NX-20000R

NX-40001-CK

NX-40001 CANNOT USE OEM RINGS AND NX-20000R RINGS CANNOT BE USED WITH OEM PISTONS

YZ125

2005-2009

NX-40009

NX-20000R

NX-40009T

NX-40009F

NX-40009K

09-B001-1

53.95

COMPRESSION 10.7:1

NX-40009-B

NX-20000R

NX-40009-BK

53.96

(CERAMIC COMPOSITE CYL)

NX-40009-C

NX-20000R

NX-40009-CK

53.97

NX-40009 CANNOT USE OEM RINGS AND NX-20000R RINGS CANNOT BE USED WITH OEM PISTONS

YZ250

1986-1987

N/A

N/A

NX-40027T

NX-40027F

N/A

N/A

N/A

(1986-1987)

(1986-1987)

YZ250

1988-1989

N/A

N/A

NX-40028T

NX-40028F

N/A

N/A

N/A

(1988-89)

(1988-89)

YZ250

1992-1998

NX-400026

NX-40026R

NX-40026T

NX-40026F

COMING SOON

09-503-1

67.94

WR250

1992-1998*

NX-400026-B

NX-40026R

(1990-1994)

(1990-1994)

67.95

COMPRESSION 10:6:1

NX-400026-C

NX-40026R

NX-40029T

NX-40029F

67.96

(CERAMIC COMPOSITE CYL)

(1995-1998)

(1995-1998)

YZ250

1999-2009

NX-40025

NX-10025R

NX-40025T

NX-40025F

COMING SOON

09-B003-1

66.4

COMPRESSION 10:9:1

NX-40025-B

NX-10025R

(1999-2001)

(1999-2000)

(CERAMIC COMPOSITE CYL)

NX-40025-C

NX-10025R

NX-40031T

NX-40031F

NX-40025-2

NX-10025-2R

(2002-2009)

(2002-2009)

NX-40025-4

NX-10025-4R

NX-40025-6

NX-10025-6R

*USES NX-10025 RING SERIES

YZ250F

2001-2004

COMING SOON

COMING SOON

NX-40032T

NX-40032F

COMING SOON

N/R

77

COMPRESSION 12:5:1

(2001-2010)

(NIKASIL CYL)

NX-40032F IS GOOD FOR 2001-08 YZ250F AND 2001-2002 OF THE WR250F

YZ250F

2005-2007

COMING SOON

COMING SOON

NX-40032T

NX-40032F

COMING SOON

N/R

77

COMPRESSION 12:5:1

(2001-2008)

(NIKASIL CYL)

NX-40032F IS GOOD FOR 2001-08 YZ250F AND 2001-2002 OF THE WR250F

YZ250F

2008

COMING SOON

COMING SOON

NX-40032T

NX-40032F

COMING SOON

N/R

77

COMPRESSION 13:5:1

(2001-2010)

(NIKASIL CYL)

NX-40032F IS GOOD FOR 2001-08 YZ250F AND 2001-2002 OF THE WR250F

YZ250F - BIG BORE

2001-2009

COMING SOON

COMING SOON

COMING SOON

COMING SOON

COMING SOON

NA

N/R

83

COMPRESSION 12:0:1

YZ400F& WR400F

1998-1999

N/A

N/A

NX-40040T

NX-40040F

N/A

N/A

N/A

(1998-1999)

(1998-1999)

YZ426F

2000-2002

N/A

N/A

NX-40041T

NX-40041F

N/A

N/A

NA

(2000-2002)

(2000-2002)

WR426F

2001-2002

N/A

N/A

NX-40041T

NX-40041F

NA

N/A

N/A

(2001-2002)

(2001-2002)

WR400F

2000

N/A

N/A

NX-40041T

NX-40041F

NA

NA

NA

2000

2000

XT600

1984-1996*

NX-40007

NX-40007R

NX-40007T

COMING SOON

NX-40007K

N/R

95

SRX600

1984-1996*

NX-40007-2

NX-40007-2R

NX-40007-2K

95.50

TENERE 600

1984-1996*

NX-40007-4

NX-40007-4R

NX-40007-4K

96