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Wiseco Piston Kit Yamaha YFM250R Raptor 2008-2013 81mm 11:1 4958M08100

Part Number: 09102855
WISECO
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SKU:
09102855
MPN:
4958M08100
Condition:
New
Availability:
Ships Same Business Day
Weight:
0.90 LBS
$224.95

Ships from Manufacture | Call to Order (231) 767-5055

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Description

If you're running a Yamaha Raptor 250R and looking to unlock measurable performance gains, a quality piston kit is essential—stock pistons simply can't handle the demands of aggressive riding or racing conditions. The Wiseco 4958M08100 delivers the precision engineering and material quality needed to improve combustion efficiency, boost throttle response, and ensure long-term reliability under sustained load. Whether you're a weekend warrior or competitive racer, this kit gives you the durability and performance you can trust.

  • Vehicle: Yamaha YFM250R Raptor
  • Model Years: 2008–2013
  • Bore Diameter: 81mm
  • Compression Ratio: 11:1
  • Manufacturer Part #: 4958M08100
  • Material: High-grade alloy
  • Design: Precision-engineered
  • Installation: Bolt-on compatible
  • Gasket Kit: Sold separately
  • Applications: Racing and recreation
  • Performance Benefit: Enhanced combustion efficiency
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Specs

BORE - OVERSIZE METRIC:
+7.00 MM
BORE SIZE METRIC:
81.00 MM
DISPLACEMENT:
299 CC
ENGINE TYPE:
4-STROKE
PISTON MATERIAL:
ALUMINUM ALLOY
PISTON MATERIAL:
FORGED
PRODUCT NAME:
PISTON
RIDING STYLE:
ATV
UNITS:
EACH
STROKE LENGTH METRIC:
58.00 MM
BORE - OVERSIZE:
+7,00 MM
COMPRESSION RATIO IMPERIAL:
11.0:1
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Fitment

Fitment for Wiseco Piston Kit Yamaha YFM250R Raptor 2008-2013 81mm 11:1 4958M08100

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