Wössner Forged Piston for KAWASAKI KLX 300 1997-2003

WOSSNER offers this piston kit for KAWASAKI KLX 300 1997-2003. 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 WOSSNER?

Wössner has forged its own pistons since 1994: Molykote-coated skirt to reduce friction and ease running-in, kit supplied complete with rings, pin and clips.

When should you replace the piston on your KAWASAKI KLX 300?

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 50 h in hard use and every 100 h for leisure.

Specifications and fitting tips

• Material: Aluminium
• Piston compression: Standard
• Oversize Letter: A
• Rings Quantity: 3
• Stroke: 4T
• Forged piston
• Manufacturer part number: 8644DA

Cross-Mania tip: Measure the cylinder bore before ordering: the piston must match your cylinder size. Follow the manufacturer's break-in procedure and replace the top-end gaskets at the same time.

Also needed with this part

• Top-end gasket kit : MOOSE · PROX
• Spark plug : see the selection
• 4-stroke engine oil : LIQUI MOLY 10W40 1 L · MOTUL 10W50
• Air filter : TECNIUM · TWIN AIR

Compatibility

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

Fits:
KAWASAKI KLX 300 2003
KAWASAKI KLX 300 2002
KAWASAKI KLX 300 2001
KAWASAKI KLX 300 2000
KAWASAKI KLX 300 1999
KAWASAKI KLX 300 1998
KAWASAKI KLX 300 1997