Polaris RZR Replacement lowered steel seat base sit the seat about 1". This seat base will works with most aftermarket seats. It has a window cut out in the center to allow suspension seats to work properly with stock hardware. It's a great replacement for broken stock plastic seat bases. These are sold individually.
This product works for all years and models of the Polaris RZR 800 including RZR XP 900 and RZR 570.