Wössner Forged Piston for POLARIS SCRAMBLER 400, SPORT 400, SPORTSMAN 400, XPLORER 400, XPLORER 400 L 4X4 1994-2013

WOSSNER offers this piston kit for POLARIS SCRAMBLER 400, SPORT 400, SPORTSMAN 400, XPLORER 400, XPLORER 400 L 4X4 1994-2013. 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 POLARIS SPORTSMAN 400?

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: 050
• Forged piston
• Anti friction coated skirt
• Manufacturer part number: 8097D050

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

• 4-stroke engine oil : LIQUI MOLY 10W40 1 L · MOTUL 10W50

Compatibility

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

Fits:
POLARIS SCRAMBLER 400 2003
POLARIS SCRAMBLER 400 2002
POLARIS SCRAMBLER 400 2001
POLARIS SCRAMBLER 400 2000
POLARIS SCRAMBLER 400 1999
POLARIS SCRAMBLER 400 1998
POLARIS SCRAMBLER 400 1997
POLARIS SCRAMBLER 400 1996
POLARIS SCRAMBLER 400 1995
POLARIS SCRAMBLER 400 1994
POLARIS SPORT 400 1999
POLARIS SPORT 400 1998
POLARIS SPORT 400 1997
POLARIS SPORT 400 1996
POLARIS SPORT 400 1995
POLARIS SPORT 400 1994
POLARIS SPORT 400 L 1998
POLARIS SPORT 400 L 1997
POLARIS SPORT 400 L 1996
POLARIS SPORT 400 L 1995
POLARIS SPORT 400 L 1994
POLARIS SPORTSMAN 400 2013
POLARIS SPORTSMAN 400 2012
POLARIS SPORTSMAN 400 2011
POLARIS SPORTSMAN 400 2010
POLARIS SPORTSMAN 400 2009
POLARIS SPORTSMAN 400 2008
POLARIS SPORTSMAN 400 2007
POLARIS SPORTSMAN 400 2006
POLARIS SPORTSMAN 400 2005
POLARIS SPORTSMAN 400 2004
POLARIS SPORTSMAN 400 2003
POLARIS SPORTSMAN 400 2002
POLARIS SPORTSMAN 400 2001
POLARIS SPORTSMAN 400 1997
POLARIS SPORTSMAN 400 1996
POLARIS SPORTSMAN 400 1995
POLARIS SPORTSMAN 400 1994
POLARIS XPLORER 400 2003
POLARIS XPLORER 400 2002
POLARIS XPLORER 400 2001
POLARIS XPLORER 400 2000
POLARIS XPLORER 400 1999
POLARIS XPLORER 400 1998
POLARIS XPLORER 400 1997
POLARIS XPLORER 400 1996
POLARIS XPLORER 400 1995
POLARIS XPLORER 400 1994
POLARIS XPLORER 400 L 4X4 2002
POLARIS XPLORER 400 L 4X4 2001
POLARIS XPLORER 400 L 4X4 2000
POLARIS XPLORER 400 L 4X4 1998
POLARIS XPLORER 400 L 4X4 1997
POLARIS XPLORER 400 L 4X4 1996
POLARIS XPLORER 400 L 4X4 1995
POLARIS XPRESS 400 1997
POLARIS XPRESS 400 1996