Cylinder Works Big Bore Cylinder Kit for Polaris RZR 900 2015-2016 975cc 10.5:1 Compression 61004-K01

If you're serious about extracting maximum horsepower from your Polaris RZR 900, a big bore cylinder kit is one of the most direct paths to measurable gains in power and throttle response. The Cylinder Works 975cc kit delivers a displacement increase that translates to real-world performance improvements without requiring extensive engine modifications or professional machine work. With matched Vertex pistons and a complete bolt-on design, you get a ready-to-run solution that maintains OEM reliability while pushing your engine's capabilities forward.

This kit ships complete with everything needed for installation—no aftermarket fabrication, no re-plating, no guesswork. The Nickel Silicon Carbide plating on the cylinder walls ensures durability under sustained high-RPM operation, and the matched components guarantee proper tolerances and longevity. Built in the USA to strict quality standards, this is the straightforward upgrade path for RZR 900 owners who want genuine performance gains backed by proven engineering.

• 975cc displacement increase
• 10.5:1 compression ratio
• Matched Vertex pistons included
• Nickel Silicon Carbide plating
• Direct bolt-on installation
• Complete gasket set included
• Piston rings and clips included
• No machine work required
• USA manufactured
• Polaris RZR 900 2015-2016