NIMTEK New Carburetor Carb for Zama C1U-K52/C1U-K47 Carb Fits Echo GT2000 GT2100 SRM2100 12520013312 Echo Carburetor Zama C1U-K52 Replaces C1U-K47 100% Brand New and High Quality! Fits Echo Models: GT2000 GT2100 PAS2000 PAS2100 PAS2110 SHC1700 SHC2100 SRM2100 SRM2110 Echo Part Numbers 12520013312 125200133313 12520013314 12520013311 12520049030 12520046831 Please be sure your carb matches the Zama models above to ensure this is the correct replacement