I need a huizhong cbb60 120uf capcitor for clark air compressor

You can use any brand motor run capacitor for this application (metal can). Mfd rating should be within plus or minus 5 percent of what you need (about 110 to 125uf). You can also use two 60 mfd motor run capacitors. Voltage rating should the same or higher ( higher voltage rating, better quality). Capacitors fail when there are too many start cycles per hour and or low power to comperssor. Generators also tend to shorten the life of caps due to low power at start and variance of cycles. Good luck with your repair.