Chinook’s K100 is a 2-Stage, 20 horsepower compressor pump built and manufactured in Italy. Entire assembly comes with 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 lower temperatures. The pump also has a maximum pressure of 200 psi, and is a direct replacement for many other Rolair model pumps.