Brand New Genuine Kohler Air Filter... We are an Authorized Kohler Dealer... Air Filter Genuine Kohler Part # 235116-S ID: 4-5/8" OD: 6" Height: 1-7/8" Fits Specific Kohler Magnum M8 & K-Series K241-K321 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