Application1999 - 2008 compatible for Honda Sportrax 400 TRX400EXReplace OEM Parts Numners12100-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-672Feature1). Complete Standard Sized Replacement Cylinder Kit 2). 85 mm x 70 mm Bore and Stroke 3). 397cc Displacement 4). 9.1:1 CompressionPackage Includes1 x Cylinder 1 x Piston 1 x Piston Pin 1 x Spark Plug 2 x Circlips 1 x Head Gasket 1 x Base Gasket 1 x Head Cover Gasket 2 x Piston Rings Just as the picture shownNote* Please check the OEM Number before purchase. This is the best way to confirm the fitment. * Please check our store for other auto parts you may be interested in. * Please feel free to contact us for whatever we can help.Warranty: one year warranty for any manufacturing defect