Low ProfIle Lawnmower Suspension fits Kubota Z200 Z231 Z251 Z400 Z411 Z421 More Please Note: It is the buyer's responsibility if they are purchasing this item that it will fit their application. Please check the Technical Drawings in the photos to view the mounting pattern provided so you can measure your current seat application to compare for compatibility. This suspension is designed to fit between your seat and seat slide rails, so measure your bolt mounting pattern on the very bottom of the seat where the slide rails bolt/mount to the seat. If you are unable to move your slide rails you will need to add oe"-" of space between your tractor/mower and the suspension. To do this, run the mounting bolts through a stack of washers or a pipe spacer oe"-" thick. This suspension is made by a name brand manufacturer and is used by most name brand zero turn mower companies. It has a universal type mounting and fits a lot of name brand mowers, but some models vary due to year changes. This suspension will not fit all models. Product Description Ultra Low Mechanical Suspension as a direct replacement where vertical height is limited to improve comfort, performance and productivity in your ag or construction equipment, ensuring that you have the smoothest ride possible. Features: Ideal for vertically limited applications Base width of 12.88" Wide base provides extra stability Easy to use and operate weight control Suspension travel of 1" 275 lb maximum weight capacity Maximum height adjustment of 2.75" Top mounting pattern of 10.69" - 11.25" side-to-side. Ideal for Garden Tractors and Mowers