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Kawasaki KX250 (1990-94) 2 Stroke Wossner Forged Piston Kit  83.45 
Ex Tax of 20% 


Wössner are regarded by Europe’s leading motor sport engine builders as being the piston of choice when building an engine not only to perform, but to withstand the stresses and duress’s of competition life. Wössner pistons feature a unique PTFE coating on the skirts and a grade of 4032 Alloy (T6) which allows the engine builder to run a closer piston to bore tolerance then he might do on another make of piston. This helps remove the slapping noise during cold start, common place among engines running forged pistons due to larger then OE bore clearances. The crowns of the pistons are also polished to better resist detonation on a high performance engine. Polishing allows a more even spread of heat inside the chamber which will help prevent “hot spots” on piston crowns. Price includes all piston rings and gudgeon pins.




Technical information is sourced from Wossner's latest catalogue

Part Number 8109
Engine Type

KX250 - 250cc

OE Bore Size 67.34mm
Bore Sizes Available






Stroke 70mm
Comp. Height 37mm


Available Options:
8109 Size Options:
67.34mm - 8109DA 
67.35mm - 8109DB 
67.36mm - 8109DC 
67.94mm - 8109D060 
68.44mm - 8109D110 
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