Up for sale is WISECO YAMAHA 2009-2013 GRIZZLY 550 10.25:1 CR 40104M09200 . The vendor part number is 40104M09200 . Please read TITLE carefull to know what you are getting because the catalog desccription can be a general description.. Catalog description�.. Forged from high-silicon aluminum alloy for maximum strength and dependability.

Innovative forging design and piston skirt provide maximum horsepower and torque.

Wiseco High-Performance piston kits are priced with piston, rings, pins and circlips (unless noted otherwise).

Oversize pistons require cylinder sleeving.