These Teflon secondary clutch buttons are used in almost all NON-EBS Polaris ATV and UTV secondary clutches. The helix rides against these buttons so they can wear out over time or even break if the machine is rode hard. Replace them before they damage the helix. Sold as a set of THREE. Exact replacement for Polaris part number 5430766, 5436521, 5438123, and 5450873. Fits the following Polaris Xplorer/Xpress models: 1996-99 Xplorer 300, 1996-02 Xplorer 400, 1997 Xplorer 500, 1996-99 Xpress 300, 1996-97 Xpress 400.