KYB Complete Fork Free Piston for YAMAHA YZ 125, YZ 250, YZF 250, YZF 450 and KAWASAKI KXF 450 2006-2014

The KYB KYB-3001004 complete fork free piston is designed for YAMAHA YZ 125, YZ 250, YZF 250, YZF 450 and KAWASAKI KXF 450 from 2006 to 2014. In closed cartridges, the free piston separates the damping oil from a compensation volume and follows the changes in volume as the fork works. Supplied complete, it replaces a piston that is worn, scored or no longer sealing properly.

Specifications

• Brand: KYB
• Manufacturer part number: KYB-3001004

When to replace it?

• Fork damping that changes during a ride.
• Oil getting where it shouldn't, cartridge oil level dropping.
• Seal hardened, marked or distorted when you remove it.

Replace this part at every full cartridge service, as set out in the fork manual. Check the diameter and dimensions listed: they must match your cartridge.

Fitting tips

1. Servicing a cartridge takes method and the right tools: follow the fork manual or leave it to a suspension specialist.
2. Strip the cartridge, clean all the parts and check the condition of the rod (scratches, pitting).
3. Fit the new part, oiled, without twisting it or damaging it on the threads.
4. Reassemble with fresh fork oil and carefully bleed the air out of the cartridge.

Why KYB?

A Japanese hydraulics specialist since 1919, KYB designs shock absorbers and forks for cars and motorcycles alike. Its motorcycle range also includes maintenance parts for its suspension: fork oil seals, fork bushings and oil.

Spare parts and items to plan

• Fork oil : LIQUI MOLY 10W 500 ml
• Fork oil seals : ATHENA · SKF

Frequently asked questions

Should I service both fork legs?
Yes: service both sides together so they behave identically.

Compatibility

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

Fits:
KAWASAKI KXF 450 2008
KAWASAKI KXF 450 2007
YAMAHA YZ 125 2014
YAMAHA YZ 125 2013
YAMAHA YZ 125 2012
YAMAHA YZ 125 2011
YAMAHA YZ 125 2010
YAMAHA YZ 125 2009
YAMAHA YZ 125 2008
YAMAHA YZ 125 2007
YAMAHA YZ 125 2006
YAMAHA YZ 250 2014
YAMAHA YZ 250 2013
YAMAHA YZ 250 2012
YAMAHA YZ 250 2011
YAMAHA YZ 250 2010
YAMAHA YZ 250 2009
YAMAHA YZ 250 2008
YAMAHA YZ 250 2007
YAMAHA YZ 250 2006
YAMAHA YZF 250 2009
YAMAHA YZF 250 2008
YAMAHA YZF 250 2007
YAMAHA YZF 250 2006
YAMAHA YZF 450 2009
YAMAHA YZF 450 2008
YAMAHA YZF 450 2007
YAMAHA YZF 450 2006