Groco SPO Heavy Duty Vane Pump 12V 

"Delrin impeller and blades are not affected by diesel fuel or crankcase oil. Self-priming to 24". Mounts in any position in dry location. Motor not waterproof. 1/2" NPT threaded ports. Use 1/2" minimum or 5/8" for oil minimum reinforced hose. For pumping water amps/fuse is 7/15, and wire size is #12 up to 40'. For pumping oil amps/fuse is -17/30 and wire size is #8 up to 40'. NOT TO BE USED IN POTABLE WATER SYSTEMS."

GPM: 7.0 for water - 4.5 for oil (Reversing), Volts: 12