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Wiseco Piston Kit Yamaha YFM450 Grizzly 2007-2014 4939M08450

Part Number: 09102851
WISECO
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SKU:
09102851
MPN:
4939M08450
Condition:
New
Availability:
Ships Same Business Day
Weight:
0.95 LBS
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$224.95

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

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Description

When your YFM450 Grizzly's factory pistons start showing wear, you're losing compression, power, and efficiency. The Wiseco 4939M08450 piston kit restores your engine to peak performance with precision-engineered components built to withstand repeated high-load cycles. Whether you're putting in serious trail hours or need reliable mid-range power, this kit delivers the durability and compression you need to keep your machine performing like new.

Technical Specifications:

  • Yamaha YFM450 Grizzly 2007–2014
  • MPN: 4939M08450
  • Wiseco OEM-grade pistons
  • Standard bore diameter
  • Optimized compression ratio
  • Forged steel construction
  • Precision-engineered rings
  • Lightweight piston design
  • Bolt-on installation
  • Gasket kit sold separately
  • Enhanced fuel efficiency
  • Improved acceleration response
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Specs

BORE - OVERSIZE METRIC:
STANDARD
ENGINE TYPE:
4-STROKE
PISTON MATERIAL:
ALUMINUM ALLOY
PISTON MATERIAL:
FORGED
PRODUCT NAME:
PISTON
RIDING STYLE:
ATV
STROKE LENGTH METRIC:
75.00 MM
UNITS:
EACH
BORE - OVERSIZE:
STANDARD
DISPLACEMENT:
420 CC
BORE SIZE METRIC:
84.50 MM
COMPRESSION RATIO IMPERIAL:
11.0:1
RIDING STYLE:
UTV
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Fitment

Fitment for Wiseco Piston Kit Yamaha YFM450 Grizzly 2007-2014 4939M08450

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