ProCore® 648 Specifications* PROCORE 648, MODEL 09200 ENGINE FUEL CAPACITY Kohler®, 2-cylinder, air-cooled, 23 hp (17.2 kW) gross, 19 hp (14.2 kW) net @ 3000 rpm, 41 cu-in. (674 cc) displacement. Dry, large capacity, replaceable element air filter. External spin-on oil filter, 2-quart (1.9-liter). 7.5-gallon (28.4-liter), gasoline. ELECTRICAL 12-volt, 15 amp regulated charging alternator/generator. BCI Group No.: U1 battery, 300 cold cranking amp @ 0°F. Micro-processor logic control.