01.2427.A – Pro-X Piston Kit STD for Yamaha YZ426F & WR426F 2000-2002. Standard bore of 74.95 mm. Compression ratio actual 12.5:1 CC.
- The smart solution to save money on engine repairs
- Manufactured in Japan and designed to be OE replacements.
- Cast from a high-silicon-content aluminum alloy that meets or exceeds OE specifications, then CNC-machined to extremely close tolerances.
- Pistons supplied in a kit package that includes rings, wrist pins and circle clips.
Fits Yamaha models:
2000-2002 YZ 426 F
2001-2002 WR 426 F
