The Rolair K30 2-Stage Compressor Pump with Flywheel is an excellent choice for saving yourself the trouble of manually rebuilding your old compressor. It is a whole pump assembly that comes with a flywheel, cast iron cylinders, oil drain extension, after-cooler and intake filter assembly. The cast aluminum crankcase and head of the replacement compressor pump extend lifespan by running at a lower temperature. It has an oil capacity of 47 ounces and runs at 1100 RPM for greater efficiency and less wear and tear. With a footprint of 8.97 x 7.48 inches, the flywheel has a 15.16-inch diameter, and the stroke measures 3.31 inches for space saving power. The Rolair compressor pump is a direct replacement for models 5230K30CS, V5312K30, H5312K30, H75160K30, V75180K30, V5112K30, H5112K30, V5360K30, V5180K30, H5180K30, H5360K30, V5380K30, H5380K30, H75180K30, V75112K30, H75112K30, H75360K30, V75380K30, V75312K30, 8422HK30, 8230HK30, V5160K30, H5160K30, 13GR30HK30. It also fits other OEM models. It has a maximum pressure of 200 psi, making it perfect for many different projects.