Boss Bearing Bronze Upgrade Front Upper A Arm Bushing Kit for Polaris RZR

Boss Bearing 50-1131UP Bronze Upgrade! Front Upper A Arm Bushing Kit. Reduce slop and downtime with our exclusive Boss Bearing upgrade! This upgrade boasts tensile strength of 35,000 psi, yield strength of 27,000 psi and a brinell hardness of 72! Our upgrade allows you to keep contamination out and clean grease in! Our kit features:
Cast SAE 660 Bronze Bearing material to replace factory plastic bushings;
Cast SAE 660 offers excellent strength and wear resistance with exceptional anti-frictional characteristics;
These precision CNC machined bushings have an integrated uni-directional nitrile seal;
The uni-directional seal allows one to purge the pivot point of any contamination with grease as needed;
An incorporated figure 8 grease channel allows grease to be evenly distributed around bushing and pin;
Pins (when included) have been upgraded to a polished Rockwell 60 hardness to increase wear resistance and life. Factory pins have been tested to be less than Rockwell 50. Kit Contains: 2 Hardened Bushing Shafts 4 Cast SAE 660 Bronze Bearing Material Bushings Please note: This kit will repair one side, if you need to repair both the left and right sides please order 2 kits. Fits the following: 2016 Polaris RZR 4 900 EPS;
2015 Polaris RZR 4 XP 1000 EPS;
2016 Polaris RZR 900 50in. and 60in;
2015 Polaris RZR 900 50in. and 60in;
2016 Polaris RZR XP Turbo EPS;
2016 Polaris RZR XP 1000 EPS;
2015 Polaris RZR XP 1000 EPS;
2014 Polaris RZR XP 1000 EPS;
2016 Polaris RZR XP 4 1000 EPS;
2014 Polaris RZR XP 4 1000 EPS; Note: Please review product image for accurate representation of product contents.