Brand New Genuine Kohler Cylinder Head Kit... We are an Authorized Kohler Dealer... Cylinder Head Kit Genuine Kohler Part # 20-318-15-S Fits Specific Kohler Model Engines Genuine OEM Kohler Part If you need assistance locating correct part, Please email Model, Spec and Serial numbers of your engine and we will gladly look up correct parts... ** Kohler Parts are Very Specific to Spec Number of Model Engine They Fit... For Example a SV740 Model Engine Could Have 10 or More Carburetors Available, Depends on Spec of Your Engine as to Which Would be Correct Carb...**