WD24X10018 GE Hotpoint Dishwasher Piston & Nut. Used on General Electric, Hotpoint, and other brands. Replaces obsolete WD22X133 WD24X199 WD24X220. TECH TIP: When this part fails, it will cause poor or no drain conditions in your dishwasher. This is often overlooked, and is easy to replace. Fits several models. Click MORE DETAILS link for specific model coverage.