Nbr rubber material is used on all O-rings and rubber gaskets nbr has excellent resistance to the ethanol used in today's fuels Polaris Sportsman 500 Carburetor Rebuild Kit Polaris Scrambler 500 Carburetor Repair Kit All Balls 26-1478 - - Motorcycle Carburetor Rebuild Kit Kits include all of the necessary components to repair a carburetor · OEM jet sizes are included in the kit. · NBR rubber material is used on all O-rings and... Kit includes all O-rings, gaskets, jets, needle, mixture screw, float bowl screws, float valve needle and seat; Oem jet sizes are included in the kit All Balls Carburetor Kit, Complete Polaris Scrambler 500 2x4 2000-2008, 26-1020 ; MAKE/ MODEL/ YEAR. Enter your make/model/year below to find the right part Kits include all of the necessary components to repair a carburetor; Atv models with two carburetors include components to repair two carburetors