Replace part number: Base Gasket: 5HP-11351-00, 5HH-E1351-00 Head Gasket: 5AP-11181-00, 5HH-E1181-00 Tensioner Gasket: 4RF-12213-00, 5HH-E2213-00. For Yamaha TTR125 TTR-125 2000 - 2004 TTR125E 2003-2004 2006-2009. Does not fit for Yamaha TTR125 2005. Bore size: 54mm; Suitable displacement: 125cc. Good Working Condition and Easy to Install. Note: Cylinder Head is Not Included. This Is Aftermarket Replacement Item But Not Genuine. Description: Cylinder is a Cast Aluminum 54.00mm Standard Bore Replacement with Steel Sleeve. The cylinder is cleaned, bored and honed to the specific clearances for the piston you receive in the kit. This kit includes a cylinder, piston, rings, wrist pin, circlips and top end gaskets. All of the components within this kit are bolt-on ready for a hassle free installation. Forged Piston With 11:1 Compression Ratio. Our Gaskets are quality and will keep a perfect seal between all of the components. Fitment: 2000-2005 For Yamaha TTR125 2003-2004 2006-2009 For Yamaha TTR125E 2011 For Yamaha TTR125L 2000-2004 2006-2009 For Yamaha TTR125L 2011-2017 For Yamaha TTR125LE 2003-2004 2006-2009 For Yamaha TTR125LE Replace part number: Base Gasket: 5HP-11351-00, 5HH-E1351-00 Head Gasket: 5AP-11181-00, 5HH-E1181-00 Tensioner Gasket: 4RF-12213-00, 5HH-E2213-00 Package: 1 x Piston 1 x Cylinder Block 1 x Piston Ring Kit 1 x Piston Pin 2 x Circlips 1 x Cylinder Head Gasket 1 x Cylinder Block Gasket 1x SPARK PLUG Note:Cylinder Head is Not Included NOTE: ◕‿◕1.Due to the light and screen difference, the item's color may be slightly different from the pictures. ◕‿◕2.All dimensions are measured by hand, there may be small deviations. ◕‿◕3.This Is Aftermarket Replacement Item But Not Genuine.