Poweka Carburetor Rebuild Kit for Husqvarna 136 137 137E 141 142 142E Zama W-29 Poulan 1975 Wood Shark PP221LE Replace Zama RB-38 High quality aftermarket carburetor rebuild kit for zama carburetors Replace P/N: RB-38 Husqvarna chainsaw models: 136 137 137E 141 142 142E Poulan chainsaw models: 1975 Wood Shark PP221LE