Wiseco Piston Kit 85.50mm 11:1 Compression Yamaha YFM450 Grizzly 2007-2014 4939M08550
Part Number: 09102853WISECO
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- SKU:
- 09102853
- MPN:
- 4939M08550
- Condition:
- New
- Availability:
- Ships Same Business Day
- Weight:
- 1.00 LBS
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Description
A worn or stock piston limits your Grizzly's potential for consistent power delivery and fuel efficiency. The Wiseco 4939M08550 piston kit delivers precision-engineered internals built to handle aggressive riding while maintaining durability across thousands of miles. Whether you're rebuilding after wear or upgrading for improved performance, this kit ensures your engine operates at peak efficiency with minimal parasitic losses.
- Bore diameter: 85.50mm
- Compression ratio: 11:1
- Fitment: Yamaha YFM450 Grizzly (2007–2014)
- Material: High-strength alloy
- Precision-engineered design
- Lightweight construction
- Optimized ring groove geometry
- Installation: Bolt-on replacement
- Gasket kit: Sold separately
- MPN: 4939M08550
Specs
BORE SIZE METRIC: |
85.50 MM |
DISPLACEMENT: |
420 CC |
PISTON MATERIAL: |
FORGED |
STROKE LENGTH METRIC: |
75.00 MM |
BORE - OVERSIZE METRIC: |
+1.00 MM |
ENGINE TYPE: |
4-STROKE |
PISTON MATERIAL: |
ALUMINUM ALLOY |
PRODUCT NAME: |
PISTON |
RIDING STYLE: |
ATV |
UNITS: |
EACH |
BORE - OVERSIZE: |
+1,00 MM |
COMPRESSION RATIO IMPERIAL: |
11.0:1 |
RIDING STYLE: |
UTV |
Fitment
Fitment for Wiseco Piston Kit 85.50mm 11:1 Compression Yamaha YFM450 Grizzly 2007-2014 4939M08550
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