Fits fits Ski-Doo™ fits Alpine™ I II 503 1987, fits Alpine™ I II 503 1988, fits Alpine™ II/IV 503 1990-1991.

Kits include all of the necessary components to repair a carburetor. Models with multiple Replacement Parts Carburetors include components to repair all Replacement Parts Carburetors. Kit includes all necessary O-rings, gaskets, jets, needle, mixture screw, float bowl screws, float replacement valve needle and seat (needle jet and other pressed-in jets are not included in kit). Factory jet sizes and slide needles are included in the kit. NBR rubber material is used on all O-rings and rubber gaskets; NBR has excellent resistance to the ethanol used in todays fuels. Applications that use paper float bowl gaskets are upgraded to High Performance Interface Gasket material. Components included in the kits are based off of US models and discretion must be used when attempting to install the kit on a non-US model.