PROX Piston Kit 01.4221.B
Part Number: PX4221BPROX
- SKU:
- PX4221B
- MPN:
- 01.4221.B
- Condition:
- New
- Availability:
- Ships Same Business Day
- Weight:
- 0.42 LBS
Description
Your engine's piston kit is the foundation of reliable power delivery and longevity under load. Factory pistons wear, lose compression, and compromise performance—the PROX Piston Kit 01.4221.B restores OEM-specification durability with precision-engineered components built to withstand serious racing and high-mileage applications. This complete kit eliminates the guesswork of sourcing individual components separately.
PROX engineered this piston set in Japan using a high-silicon aluminum alloy that meets or exceeds OEM tolerances, then CNC-machined each piece to extremely close specifications. You get pistons, rings, wrist pins, and circlips in one package—everything needed for a complete, reliable rebuild.
- Manufactured in Japan
- OEM replacement specification
- High-silicon aluminum alloy
- CNC-machined tolerances
- Complete kit included
- Pistons + rings
- Wrist pins supplied
- Circlips included
- Bolt-on installation ready
- MPN: 01.4221.B
Specs
PISTON DIAMETER METRIC: |
53.97 MM |
RIDING STYLE: |
OFF-ROAD |
BORE SIZE METRIC: |
53.97 MM |
PISTON SIZE METRIC: |
STANDARD SIZE B |
PRODUCT NAME: |
PISTON KIT |
UNITS: |
EACH |
PISTON MATERIAL: |
ALUMINUM ALLOY |
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