Replacement pump for Cambell Hausfeld. CFM will depend on what rpm you run the pump at. We recommend getting a longer life out of the pump with slightly lower cfm output by staying under 1000 rpm. RPM range 900 – 1050. Mounting Hole measurements center to center are as follows. Side to Side is 5.75 inches. Front to Back is 6.5 inches. The item “3HP Replacement Air Compressor Pump for Campbell Hausfeld VT4923 Style Cast Iron” is in sale since Friday, November 16, 2018. This item is in the category “Business & Industrial\Hydraulics, Pneumatics, Pumps & Plumbing\Air Compressors & Blowers\Other Air Compressors”. The seller is “aircompressorsandparts” and is located in Amarillo, Texas. This item can be shipped to United States.