ATHENA NOK Fork Oil Seal Kit 43x54x11 mm for HONDA, SUZUKI, YAMAHA and HUSQVARNA 1983-2000

The ATHENA 43x54x11 mm NOK P40FORK455093 fork oil seal kit is designed for HONDA CR 125, CR 250, CR 480, CR 500, XR 250, XR 400, XR 500, XR 600, XRV 650, XRV 750, YAMAHA YZ 125, SUZUKI DR 250 and HUSQVARNA WRE 125 from 1983 to 2000. 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: P40FORK455093
• EAN code: 8050043260802
• Weight: 60 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 P40FORK455226 · ATHENA P40FORK455096
• Fork oil : LIQUI MOLY 10W 500 ml
• Fork bushings : INNTECK · ATHENA

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 1989
HONDA CR 125 1988
HONDA CR 125 1987
HONDA CR 125 1986
HONDA CR 125 1985
HONDA CR 125 1984
HONDA CR 250 1988
HONDA CR 250 1987
HONDA CR 250 1986
HONDA CR 250 1985
HONDA CR 250 1984
HONDA CR 250 1983
HONDA CR 480 1983
HONDA CR 500 1988
HONDA CR 500 1987
HONDA CR 500 1986
HONDA CR 500 1985
HONDA CR 500 1984
HONDA XR 250 1996
HONDA XR 250 1995
HONDA XR 250 1994
HONDA XR 250 1993
HONDA XR 250 1992
HONDA XR 250 1991
HONDA XR 400 1999
HONDA XR 400 1998
HONDA XR 400 1997
HONDA XR 400 1996
HONDA XR 500 1984
HONDA XR 500 1983
HONDA XR 600 1999
HONDA XR 600 1998
HONDA XR 600 1997
HONDA XR 600 1996
HONDA XR 600 1995
HONDA XR 600 1994
HONDA XR 600 1993
HONDA XR 600 1992
HONDA XR 600 1991
HONDA XR 600 1990
HONDA XR 600 1989
HONDA XR 600 1988
HONDA XR 600 1987
HONDA XR 600 1986
HONDA XR 600 1985
HONDA XRV 650 1989
HONDA XRV 650 1988
HONDA XRV 750 2000
HONDA XRV 750 1999
HONDA XRV 750 1998
HONDA XRV 750 1997
HONDA XRV 750 1996
HONDA XRV 750 1995
HONDA XRV 750 1994
HONDA XRV 750 1993
HONDA XRV 750 1992
HONDA XRV 750 1991
HONDA XRV 750 1990
HUSQVARNA WRE 125 1995
SUZUKI DR 250 1996
SUZUKI DR 250 1995
SUZUKI DR 250 1994
SUZUKI DR 250 1993
SUZUKI DR 250 1992
SUZUKI DR 250 1991
SUZUKI DR 250 1990
YAMAHA YZ 125 1985
YAMAHA YZ 125 1984