Rebuild your favorite compressor quickly and easily with the reliable Rolair Single-Stage Compressor Pump with Flywheel. With a maximum pressure of 150 PSI, this replacement part can be used with a number of different Rolair compressors. This pump assembly includes a finned after-cooler, intake filter and flywheel. Rolair compressor pump's lower RPM helps ensure long-term efficiency and cooler operations. Cast-iron cylinders, heavy-duty ball bearings and stainless steel valves are suited for industrial and professional use. This 2-cylinder pump has an oil capacity of 34 ounces. Avoid the time-consuming effort of rebuilding your pump. The replacement compressor pump's visual oil glass makes it easier to check levels.