Complete Engine Cylinder Kit fit for Honda TRX400EX Sportrax 1999-2008 12100-KCY-670 28439598Application : fit for Honda Sportrax 400 TRX400EX 1999 2008 Replace OEM Parts Numners: 12100 KCY 670, 12191 KCY 672, 13011 KCY 670, 13101 KCY 670, 90601 KA5 000, 13111 KCY 670, 12251 HN1 003, 12391 KCY 671, 14560 KCW 851, 12100 HN1 A70, 12191 KCY 672 Features: 1). Complete Standard Sized Replacement Cylinder Kit 2). Bore and Stroke: 85 mm x 70 mm 3). Displacement: 397cc 4). Piston Compression: 9. 1: 1 5). Main Material: Metal Package Includes: 1 x