If your motor won't start or your washing machine is acting up, it might be a bad capacitor. This PATIKIL CBB60 run capacitor is a common replacement part for a huge variety of single-phase motors.
Specs: It's a 100 microfarad (100uF) capacitor rated for 250V AC, with a 4-pin terminal layout. The body size is about 120mm tall by 55mm wide (4.7\ x 2.16\). It's designed for 50/60Hz systems. You'll find it in appliances and tools like air compressors, water pumps, pressure washers, air conditioners, washing machines, fans, drills, and more. It's made from polypropylene film in a plastic shell, which gives it great characteristics: small size, lightweight, low loss, strong overload ability, and reliable insulation. Capacitors aren't polarized (no positive/negative), so you can connect it either way. Just be careful not to over-voltage or over-current it during use. A super handy, affordable part to keep your motors humming. Comes as a single piece (1pc).