Wiseco Pistons
Wiseco now offers a piston for 2004-07 Yamaha 660 Rhinos. This stock 9.9:1 compression piston is skirt-coated for reduced friction and quieter operation. Its dome design offers improved flame travel and dedicated rings for maximum compression and oil control. Available in 100mm to 102mm bore sizes, this piston will also fit the Yamaha 660 Raptor