01.2487.000 – Pro-X Piston Kit STD for 1987-2014 Yamaha 350 Warrior, Bruin, Grizzly and Raptor R ATV’s

Standard bore of 83.00 mm. 

• 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.

Check chart below for fit.