This Moroso external wet-sump single-stage oil pump is a Brinn-mount unit listed at 1.500 PS. It’s specified as an external pump intended for wet-sump configurations where an externally mounted, single-stage pump is required. The Brinn mount and the 1.500 specification identify its interface and displacement characteristics for applications needing an externally driven oil pump.
Moroso External Wet Sump Single Stage Brinn Mount 1.500 PS Oil Pump