Millennium Piston Kit - +5.00 Mm - Big Bore - M-Spec - Polaris 1000 K8930D500-2

• Replacement piston kits for M-Spec big bore cylinder • 4-stroke pistons are made using a double-bridged forging design • Lightweight pistons with the tightest piston-wall clearances in the industry give you a quieter running engine • Made in the USA - Polaris RZR 4 XP 1000 4x4 (2014, 2016, 2015); Polaris RZR XP 1000 4x4 (2015, 2016, 2014); Polaris RZR S 1000 EPS 4x4 (2016); Polaris General 1000 EPS 4x4 (2016)