ATHENA Fork Oil Seal Kit 43x55.1x9.5/10 mm for KAWASAKI, YAMAHA, HONDA and SUZUKI 1988-2012

The ATHENA 43x55.1x9.5/10 mm P40FORK455057 fork oil seal kit is designed for KAWASAKI KDX 200, KDX 250, KLX 250, KLX 300, KLX 650, KX 125, KX 250, KX 500, YAMAHA TTR 250, WR 250, XT 660, YZ 125, HONDA CR 125, CR 250, CR 500 and SUZUKI RM 125, RM 250 from 1988 to 2012. The fork oil seal keeps the oil inside the fork leg while letting the inner tube slide. It is a wear item: dust, mud and impacts on the tubes eventually damage its lip, and the fork leaks.

Specifications

• Brand: ATHENA
• Manufacturer part number: P40FORK455057
• EAN code: 8055681307612
• Weight: 50 g

When to replace it?

• Film of oil on the inner tube after a few fork strokes.
• Oil traces on the fork leg, the caliper or the brake disc.
• Fork that becomes softer on one side.

Before replacing a leaking seal, clean under its lip: a trapped grain of sand is sometimes enough to cause the leak. If it still leaks, replace the seals on both legs. Measure your seal (inside diameter, outside diameter and height) or check the original part number: the size is in the name.

Fitting tips

1. Drain and disassemble the fork leg following the manual, then remove the dust seal, the circlip and the old seal.
2. Check the fork bushings and the condition of the inner tube: a scratch or a rust spot will cut a new seal.
3. Protect the end of the tube (plastic bag), oil the lip and drive the seal in straight with a seal driver of the right diameter.
4. Refit the circlip and a new dust seal, then reset the fork oil level.

Why ATHENA?

Athena, an Italian company founded in 1973 near Vicenza, designs gaskets, pistons and cylinder kits for motorcycles. An OEM supplier to KTM, Ducati, Fantic, Piaggio and Triumph and a partner of the MXGP world championship, it develops its parts on the test bench and on the track with racing teams.

Spare parts and items to plan

• Fork dust seals : ATHENA P40FORK455098 · ATHENA P40FORK455099
• Fork oil : LIQUI MOLY 10W 500 ml
• Fork bushings : ATHENA · KYB

Frequently asked questions

Do I have to change both seals?
Yes: they have the same age and the same mileage. Replace both oil seals and, ideally, both dust seals.

Why is my new seal leaking?
Most often because of a scratched or pitted tube, a lip turned back during installation, or worn bushings that let the tube develop play.

Compatibility

Check the exact model and year of your bike in the list below before ordering.

Fits:
HONDA CR 125 1996
HONDA CR 125 1995
HONDA CR 125 1994
HONDA CR 250 1995
HONDA CR 500 1995
KAWASAKI KDX 200 1999
KAWASAKI KDX 200 1998
KAWASAKI KDX 200 1997
KAWASAKI KDX 200 1996
KAWASAKI KDX 200 1995
KAWASAKI KDX 250 1994
KAWASAKI KDX 250 1993
KAWASAKI KDX 250 1992
KAWASAKI KDX 250 1991
KAWASAKI KLX 250 2012
KAWASAKI KLX 250 2011
KAWASAKI KLX 250 2010
KAWASAKI KLX 250 2009
KAWASAKI KLX 300 1999
KAWASAKI KLX 300 1998
KAWASAKI KLX 300 1997
KAWASAKI KLX 650 2001
KAWASAKI KLX 650 2000
KAWASAKI KLX 650 1999
KAWASAKI KLX 650 1998
KAWASAKI KLX 650 1997
KAWASAKI KLX 650 1996
KAWASAKI KLX 650 1995
KAWASAKI KLX 650 1994
KAWASAKI KLX 650 1993
KAWASAKI KX 125 1995
KAWASAKI KX 125 1994
KAWASAKI KX 125 1993
KAWASAKI KX 125 1992
KAWASAKI KX 125 1991
KAWASAKI KX 125 1988
KAWASAKI KX 250 1995
KAWASAKI KX 250 1994
KAWASAKI KX 250 1993
KAWASAKI KX 250 1992
KAWASAKI KX 250 1991
KAWASAKI KX 250 1988
KAWASAKI KX 500 1996
KAWASAKI KX 500 1995
KAWASAKI KX 500 1994
KAWASAKI KX 500 1993
KAWASAKI KX 500 1992
KAWASAKI KX 500 1991
KAWASAKI KX 500 1988
SUZUKI RM 125 1988
SUZUKI RM 250 1988
YAMAHA TTR 250 2006
YAMAHA TTR 250 2005
YAMAHA TTR 250 2004
YAMAHA TTR 250 2003
YAMAHA TTR 250 2002
YAMAHA TTR 250 2001
YAMAHA TTR 250 2000
YAMAHA TTR 250 1999
YAMAHA WR 250 1997
YAMAHA WR 250 1996
YAMAHA WR 250 1995
YAMAHA WR 250 1994
YAMAHA WR 250 1993
YAMAHA WR 250 1992
YAMAHA WR 250 1991
YAMAHA XT 660 2012
YAMAHA XT 660 2011
YAMAHA XT 660 2010
YAMAHA XT 660 2009
YAMAHA XT 660 2008
YAMAHA XT 660 2007
YAMAHA XT 660 2006
YAMAHA XT 660 2005
YAMAHA XT 660 2004
YAMAHA YZ 125 1995
YAMAHA YZ 125 1994
YAMAHA YZ 125 1993
YAMAHA YZ 125 1992
YAMAHA YZ 125 1991