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| 290cc Big Bore Kits by Athena |
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Big Bore Cylinder Kits include: brand new nickel-carbide plated cylinder with enlarged water passages, precision made piston with rings, pins, clips, gaskets, o-rings, and all other parts needed for a complete installation.
Fits '08~'09 YZ250F models |
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| GYT-0SS56-31-13 |
$842.95 |
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| Replacement-Complete Piston (A) |
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| GYT-0SS56-31-14 |
$229.95 |
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| Replacement-Complete Piston (B) |
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| GYT-0SS56-31-15 |
$229.95 |
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| GYT-0SS56-31-11 |
$66.99 |
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| GYT-0SS56-31-12 |
$30.49 |
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