Polaris RZR Parts For Sale UTVinc King progressive springs August 27, 2015 UTVinc KING progressive springs off of 2012 RZR 900 XP, 2 seater, UTVinc sku 3157. Excellent condition, set of 4, front, and rear. Fits over stock shocks. $325.00 Share this:Click to share on Twitter (Opens in new window)Click to share on Facebook (Opens in new window) Related