Wiseco Piston Kit 95mm 12:1 Compression Yamaha YFZ450 2004-2005 PK1071
Part Number: 09030474WISECO
- SKU:
- 09030474
- MPN:
- PK1071
- Condition:
- New
- Availability:
- Ships Same Business Day
- Weight:
- 1.85 LBS
Description
If you're running a YFZ450 at the edge of its limits, a worn or damaged piston is the quickest path to catastrophic engine failure. This Wiseco kit delivers a complete top-end solution with a forged piston engineered to handle sustained high RPM and elevated combustion temperatures without excessive expansion or ring blow-by. Whether you're a racer chasing consistency or a weekend warrior rebuilding after a hard season, this is a genuine upgrade that restores—or exceeds—factory performance.
The high-silicone forged construction and precision ring design are purpose-built for the YFZ450's aggressive power band. All critical components arrive in one kit, eliminating compatibility guesswork and cutting down rebuild time.
- Fits: 2004–2005 Yamaha YFZ450
- Bore: 95mm
- Compression Ratio: 12:1
- Material: High-silicone forged aluminum
- Includes: Piston, rings, wrist pins, circlips, top-end gasket kit
- Design: Precision-fit Wiseco spec
- Ring Type: Non-interchangeable
- Installation: Bolt-on top-end rebuild
- Application: Racing and recreational
Specs
BORE SIZE METRIC: |
95.00 MM |
MODEL: |
FORGED SERIES |
BORE - OVERSIZE: |
STANDARD |
BORE - OVERSIZE METRIC: |
STANDARD |
COMPRESSION RATIO IMPERIAL: |
12.0:1 |
PISTON DIAMETER METRIC: |
94.94 MM |
SKIRT COATING: |
ARMORGLIDE® |
STROKE LENGTH METRIC: |
62.00 MM |
UNITS: |
KIT |
PRODUCT NAME: |
REBUILD KIT |
DISPLACEMENT: |
439 CC |
ENGINE TYPE: |
4-STROKE |
PISTON MATERIAL: |
2618 ALUMINUM ALLOY |
RIDING STYLE: |
ATV |
TYPE: |
TOP END |
Fitment
Fitment for Wiseco Piston Kit 95mm 12:1 Compression Yamaha YFZ450 2004-2005 PK1071
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