- New
WOSSNER piston kit for KAWASAKI KX 250 F from 2011 to 2014 - 8816DB
€195.90
Tax Included
The piston moves up and down in the cylinder to turn combustion into motion: this kit replaces it along with its rings, pin and clips.
WOSSNER offers this piston kit for KAWASAKI KX 250 F from 2011 to 2014. 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 KX 250 F?
Harder starting, loss of power, blue smoke, oil consumption or a knock when cold: these are the signs of a tired top end.
Recommended hours for a top-end rebuild (manufacturer recommendation for the Kawasaki KX 250 F / KX 450 F (four-stroke)):
- Racing: every 15 h (about 6 races).
- Leisure: no Kawasaki figure; Cross-Mania guideline: compression check at around 30 h.
Specifications and fitting tips
- Oversize: Standard
- Piston diameter: 76.97 mm
- Stroke: 53.60 mm
- Piston material: Aluminium alloy, Forged
- Ring material: Nitride coating, Steel, Cast
- Forged piston: aerospace-grade aluminium alloy, closed-die forged for high tensile and fatigue strength
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 : ATHENA · TECNIUM
- Spark plug : NGK 6508 · NGK 6607
- 4-stroke engine oil : LIQUI MOLY 10W40 1 L · MOTUL 10W50
- Air filter : PROX · TECNIUM
Compatibility
Check the exact model and year of your bike in the list below before ordering.
Fits:
KAWASAKI KX 250 F 2014
KAWASAKI KX 250 F 2013
KAWASAKI KX 250 F 2012
KAWASAKI KX 250 F 2011
8816DB
2 Items
Specific References
Click on your bike to see all compatible parts.
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The piston moves up and down in the cylinder to turn combustion into motion: this kit replaces it along with its rings, pin and clips.
WOSSNER piston kit for KAWASAKI KX 250 F from 2011 to 2014 - 8816DB
€195.90
Tax Included