Mechanical fuel pump equivalent to AC part number 461-156
Applications include Hillman, Humber, Singer, Sunbeam, Commer PA and PB. 1.5 to 1.7 and 1725cc 1966 to 1978. Inlet 1/2" - 20 UNF, outlet 6 mm. Approximate key dimensions - 67mm between mounting plate diagonal hole centres, 55mm from mounting face out to front tip of arm, 22mm from centre line of top mounting hole down to bottom tip of arm.