This is a brand new carburetor, not a rebuilt one.Product weight: 6 pounds Please carefully observe the throttle shaft linkage of the carburetor, and the pipe mounting port of the automatic hot air choke, it is facing both sides, if it is different from your original carburetor, please do not order it, they are not compatible. Please note that this carburetor may not be compatible with this model: 1978 Fiat Spider 124 1800. Please look carefully at your original carburetor and compare it to the carburetor we sell. Fiat 131 Fiat 132 Fiat 124 Spider, Coupe Fiat 125 Special.FIAT 131 Mirafiori. Please make sure that the carburetor is suitable for your engine before ordering. Part: EG-124-037