1、Applicable Models: Cylinder piston kit is replacement for Polaris Predator 90 2003‑2006, please check carefully to make sure it is compatible with your vehicle. 2、Part Number: The referencing part number of the kit are A12101146000, A12251117000, A12191117000,A9100107128, A9405007000, 278002223, A13100146000, A13111117000, A13011146000, A13115101000, etc. 3、High Performance: The cylinder can work reliably under harsh conditions, effectively improving the engine displacement and performance! Increase horsepower and torsion! 4、Long Durability:: The cylinder kit is made of metal materials, with high strength, not easy to deform, strong impact resistance, reduced engine vibration and making driving more stable. 5、Ideal Replacement: Simple operation and easy control, used to replace the old and damaged one of the original vehicle to improve the riding experience.