Specifics and features: Package of 4 Ball Joints Oversized Thread on Retainer Heat treated 4140 Chromoly Stud Oversize Heavy Duty Internals Serviceable Grease Port Improved Strength and Rigidity over OE# Direct Bolt on Replacement Compatible with: For 2014+ RZR XP 1000 For 2015+ RZR XP 1000 EPS High Lifter Edition For 2014+ RZR XP 4 1000 For 2016+ RZR XP 4 1000 EPS High Lifter Edition For 2016+ RZR XP 4 Turbo For 2016+ RZR XP Turbo For 2018+ RZR XP 4 Turbo S For 2018+ RZR XP Turbo S For 2020+ RZR PRO XP Package Include: 4 × Ball Joints .