SKF Fork Oil Seal 43x54x9 mm for HONDA and SUZUKI 1983-2012

The SKF 43x54x9 mm OSB-43S fork oil seal is designed for HONDA CR 125, CR 250, CR 480, CR 500, XR 400, XR 500, XR 600, XRV 750 and SUZUKI DL 650, DL 1000, DR 250, DR 350, DRZ 250 from 1983 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: SKF
• Manufacturer part number: OSB-43S
• EAN code: 8050040143702
• Weight: 30 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 SKF?

SKF is renowned for its fork seals, among the most durable in motocross according to the American magazine Motocross Action, which notes that the WP forks on KTMs are fitted with them as original equipment. In its Dual Compound range, the brand combines two rubber compounds moulded together: a tough green dust wiper and a softer red sealing lip, both reinforced by a metal insert.

Spare parts and items to plan

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

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 1993
HONDA CR 125 1992
HONDA CR 125 1987
HONDA CR 250 1994
HONDA CR 250 1993
HONDA CR 250 1992
HONDA CR 250 1987
HONDA CR 250 1986
HONDA CR 250 1985
HONDA CR 480 1983
HONDA CR 500 1994
HONDA CR 500 1993
HONDA CR 500 1992
HONDA CR 500 1988
HONDA CR 500 1987
HONDA CR 500 1986
HONDA CR 500 1985
HONDA CR 500 1984
HONDA XR 400 2004
HONDA XR 400 2003
HONDA XR 400 2002
HONDA XR 400 2001
HONDA XR 400 2000
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 2000
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 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
SUZUKI DL 650 2012
SUZUKI DL 650 2011
SUZUKI DL 650 2010
SUZUKI DL 650 2009
SUZUKI DL 650 2008
SUZUKI DL 650 2007
SUZUKI DL 650 2006
SUZUKI DL 650 2005
SUZUKI DL 650 2004
SUZUKI DL 1000 2012
SUZUKI DL 1000 2011
SUZUKI DL 1000 2010
SUZUKI DL 1000 2009
SUZUKI DL 1000 2008
SUZUKI DL 1000 2007
SUZUKI DL 1000 2006
SUZUKI DL 1000 2005
SUZUKI DL 1000 2004
SUZUKI DL 1000 2003
SUZUKI DL 1000 2002
SUZUKI DR 250 1993
SUZUKI DR 250 1992
SUZUKI DR 250 1991
SUZUKI DR 250 1990
SUZUKI DR 350 1996
SUZUKI DR 350 1995
SUZUKI DR 350 1994
SUZUKI DR 350 1993
SUZUKI DR 350 1992
SUZUKI DR 350 1991
SUZUKI DR 350 1990
SUZUKI DRZ 250 2007
SUZUKI DRZ 250 2006
SUZUKI DRZ 250 2005
SUZUKI DRZ 250 2004
SUZUKI DRZ 250 2003
SUZUKI DRZ 250 2002
SUZUKI DRZ 250 2001