ATHENA WP 43 mm Outer Fork Bushing for KTM EXC, LC4, MXC, SX, SXF, SXS 125, 200, 400, 520, 540, 620 2000-2002

The ATHENA WP 43 mm S41TI43WO outer fork bushing is designed for KTM EXC 125, EXC 200, EXC 400, EXC 520, LC4 620, MXC 200, SX 125, SX 400, SXF 400, SXS 125, SXS 540 from 2000 to 2002. The outer fork bushing (guide bushing) is fitted at the top of the fork leg, under the oil seal: together with the inner fork bushing (slide bushing), it guides the sliding of the fork. Its PTFE (Teflon) coating reduces friction; once worn, the bronze shows through, the fork binds and the oil seals wear out faster.

Specifications

• Brand: ATHENA
• Manufacturer part number: S41TI43WO
• EAN code: 8050506054030
• Guide bushing fitted in the outer tube (PTFE-coated inside)

When to replace it?

• Grey coating worn through: the copper or bronze shows on the bushing.
• Play in the fork when you rock the bike back and forth with the front brake on.
• Fork that binds at the start of its stroke, oil seals that leak again and again.

Check the bushings every time you replace the oil seals or change the fork oil. Replace them as soon as the bronze shows over more than a quarter of their surface.

Fitting tips

1. Disassemble the fork leg following the manual and separate the outer tube from the inner tube.
2. Remove the old bushing without scratching its seat, and clean the seat.
3. Fit the new bushing with a suitable tool (or using the old bushing as a driver), then install new oil seals.
4. Reset the fork oil level as per the manual.

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 oil seals : ATHENA P40FORK455141 · ATHENA P40FORK455065
• Fork oil : LIQUI MOLY 10W 500 ml
• Fork dust seals : ATHENA · XTRIG

Frequently asked questions

Do I have to change both bushings?
Check the outer and inner bushings on both legs: they wear together. Replace all those that show bronze.

Compatibility

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

Fits:
KTM EXC 125 2001
KTM EXC 125 2000
KTM EXC 200 2002
KTM EXC 200 2001
KTM EXC 200 2000
KTM EXC 400 2002
KTM EXC 400 2001
KTM EXC 400 2000
KTM EXC 520 2002
KTM EXC 520 2001
KTM EXC 520 2000
KTM LC4 620 2000
KTM MXC 200 2002
KTM MXC 200 2001
KTM MXC 200 2000
KTM SX 125 2001
KTM SX 125 2000
KTM SX 400 2000
KTM SXF 400 2000
KTM SXS 125 2001
KTM SXS 125 2000
KTM SXS 540 2001