Namura Technologies NA-40001-3 Piston Kit - 0.75mm Oversized to 64.70mm engine-crankcase-components-crank-bearings-seals 2012-2021 Polaris 600 PRO-RMK 155

2012-2021 Polaris 600 PRO-RMK 155

2011-2021 Ski-Doo Expedition Sport 600 ACE

2012-2013 Polaris Sportsman 550 EPS Browning LE

as well as the footpegs

PowerPort crossover makes for a significant power increase from just off idle to redline

Namura Technologies NA-40001-3 Piston Kit - 0.75mm Oversized to 64.70mm engine-crankcase-components-crank-bearings-seals 2012-2021 Polaris 600 PRO-RMK 155Bore: 64. 70mm Compression: Standard Compression Sizing: 0. 75mm Oversize OEM style w 20% thicker skirt. MOS2 (Teflon Molybdenum) Coated Skirts A rolled on application process provides a bond that is 10 times stronger than other spray on coatings. Benefits include increased heat transfer, reduced friction and helping to eliminate cold seizures. Machined Smooth Heads Reflects combustion heat and reduces carbon buildup, protecting the top of the piston.