ATHENA Racing Forged Piston for HUSABERG FC 501, FC 600, FE 501, FE 600 1994-2009

ATHENA offers this piston kit for HUSABERG FC 501, FC 600, FE 501, FE 600 1994-2009. The piston slides in the cylinder and takes the force of the air-fuel combustion, passing it to the connecting rod and crankshaft.

Why choose a forged piston?

Instead of simply being cast, a forged piston is hot-pressed under very high pressure and then machined: its metal is denser and free of air pockets.

• Stronger when hot: it copes better with high revs, overheating and detonation.
• Lighter for the same strength: less stress on the connecting rod and bearings.
• Good to know: depending on the alloy, it expands a little more and is fitted with more clearance; slight noise when cold is normal.
• Why does it cost more? Forging tools, full machining and surface treatments cost more than simple casting.

Why choose ATHENA?

Athena, the Italian manufacturer founded in 1973, is an original-equipment supplier to manufacturers such as KTM and Ducati: the same standards for your replacement parts.

When should you replace the piston on your HUSABERG FC 600?

Harder starting, loss of power, blue smoke, oil consumption or a knock when cold: these are the signs of a tired top end.

No manufacturer hour figure for this model. Cross-Mania guideline: compression check every 30 h in hard use and every 60 h for leisure.

Specifications and fitting tips

• Engine: 4-stroke
• Manufacturer part numbers: S4F09500003A (A), S4F09500003B (B), S4F09500003C (C)

Available in several sizes: choose the one that matches your cylinder (stamped size or measured bore). Diameters: A = 94.94 mm, B = 94.95 mm, C = 94.96 mm.

Spare parts and items to plan

• Piston rings : VERTEX · WOSSNER
• Piston pin : WOSSNER
• Top-end gasket kit : ATHENA · CENTAURO
• Spark plug : NGK 4218 · NGK 4339
• Coolant : LIQUI MOLY 1 L · TWIN AIR
• 4-stroke engine oil : MOTUL 10W50 · LIQUI MOLY 10W40 1 L

Compatibility

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

Fits:
HUSABERG FC 501 2009
HUSABERG FC 501 2008
HUSABERG FC 501 2007
HUSABERG FC 501 2006
HUSABERG FC 501 2005
HUSABERG FC 501 2004
HUSABERG FC 501 2003
HUSABERG FC 501 2002
HUSABERG FC 501 2001
HUSABERG FC 501 2000
HUSABERG FC 501 1999
HUSABERG FC 600 2008
HUSABERG FC 600 2007
HUSABERG FC 600 2006
HUSABERG FC 600 2005
HUSABERG FC 600 2004
HUSABERG FC 600 2003
HUSABERG FC 600 2002
HUSABERG FC 600 2001
HUSABERG FC 600 2000
HUSABERG FC 600 1999
HUSABERG FC 600 1998
HUSABERG FC 600 1997
HUSABERG FC 600 1996
HUSABERG FC 600 1995
HUSABERG FC 600 1994
HUSABERG FE 501 2009
HUSABERG FE 501 2008
HUSABERG FE 501 2007
HUSABERG FE 501 2006
HUSABERG FE 501 2005
HUSABERG FE 501 2004
HUSABERG FE 501 2003
HUSABERG FE 501 2002
HUSABERG FE 501 2001
HUSABERG FE 501 2000
HUSABERG FE 501 1999
HUSABERG FE 600 2008
HUSABERG FE 600 2007
HUSABERG FE 600 2006
HUSABERG FE 600 2005
HUSABERG FE 600 2004
HUSABERG FE 600 2003
HUSABERG FE 600 2002
HUSABERG FE 600 2001
HUSABERG FE 600 2000
HUSABERG FE 600 1999
HUSABERG FE 600 1998
HUSABERG FE 600 1997
HUSABERG FE 600 1996
HUSABERG FE 600 1995
HUSABERG FE 600 1994