This is a genuine Campbell Hausfeld replacement drain valve, sold individually. When using an air compressor, moisture naturally condenses inside the tank. If this water is left sitting for too long, ...
This ASME safety valve is constructed of high-qualty metal, and is made for use with many air compressor models. Fastened to the manifold, the safety valve diminishes air pressure when the pump is not...
This item is an original part from Campbell Hausfeld for use in compressors. The pressure switch unloader valve connects to the pressure switch. A wrench set and a screwdriver may be necessary during ...
This genuine OEM sourced replacement pressure switch is specially designed for Campbell Hausfeld air compressors. The purpose of this component is to control when the compressor should start and stop ...
This is a genuine manufacturer-sourced replacement power cord and plug assembly which is specially designed for Campbell Hausfeld air compressors. It is hardwired to the electric motor in order to sup...
This is an authentic manufacturer-sourced component which is specially made for use with Campbell Hausfeld air compressors. The unloader tube is connected to the pressure switch to allow excess pressu...
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Yvon
May 26, 2026
How do I do an oil change?
For model number HL550100
Hello Yvon, thank you for reaching out. To change the oil, first let the compressor run for a short time so the oil warms up, then unplug the unit for safety. Place a drain pan under the pump end of the compressor. Remove the oil drain plug and allow all the oil to flow out completely; tilting the unit can help ensure it drains fully. Once empty, reinstall the drain plug securely. Next, refill the pump with the recommended oil, such as Chevron synthetic 5W-30, Mobil 1 5W-30, or 10W-30 synthetic motor oil, until it reaches the full mark on the sight glass. Finally, remember that the oil should be changed after every 50 hours of use to keep the compressor running properly. We hope this information helps!
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