Uni Pro - KM 355 Yellow Mechanical Suspension Seat - Tall back Uni Pro? - KM 355 Utility Mechanical Suspension Seat Assembly The Uni Pro? - KM 355 Utility Suspension Assembly is a replacement seat and mechanical suspension assembly to keep you riding in maximum comfort while you're busy at work. The suspension comprises of tension springs with an oil-hydraulic shock absorber. Please Note: Drilling may be required. Features: Durable vinyl covering Mechanical suspension with tension springs Contoured foam cushions to ensure operator comfort Trapezoid backrest 2.36" height adjustment Fore/aft slide adjustment of 5.91" 3.94" suspension stroke Hydraulic shock absorber 110 - 265 lb weight adjustment Includes safety switch Dimensions: 23.62" x 22.44" x 21.26" (W x H x D). Width is from outer armrest to outer armrest. Multiple Applications for Agriculture and Construction Equipment. Ideal for Caterpillar and Komatsu Mini Excavators, and Versatile Tractors: May Fit Some Models - Check Bolt Pattern to Ensure Proper Fit (Refer to Technical Drawings in More Info Tab) Caterpillar Mini Excavators: please check mounting pattern of equipment and seat to ensure proper fit Ford Tractor: 9030 Komatsu Mini Excavators: please check mounting pattern of equipment and seat to ensure proper fit Versatile Tractors: 700, 900