520900 ScrewIn Heater Element — 1440W / 120V Key benefits Direct replacement for Suburban SW series: fits SW4DE through SW16VE models and replaces part numbers 520789, SU520789, and 232794. Designed to restore original heating performance without modification. Reliable heating power: 1440W at 120V delivers consistent heat output to shorten recovery time and maintain comfortable water temperature. Longer service life: corrosionresistant design resists mineral buildup and corrosion, reducing failures and extending the life of your water heater. Fast, loweffort maintenance: screwin installation lets you the element quickly without special tools, minimizing downtime. What it does Heats water reliably for RVs and other Suburban SWseries installations. Reduces issues caused by worn or damaged elements such as slow heatup, low water temperature, and intermittent heating. Helps prevent future failures by resisting scale and corrosion. Common problems this part fixes Damaged or burnedout element Unable to heat or no hot water Heating time too long or slow recovery Low water temperature Abnormal water pressure or slow water flow related to element issues Practical use scenarios Emergency replacement in an RV: swap the old element for the 520900 to quickly restore hot water service on road trips or at the campsite. Scheduled maintenance: an aging element to prevent mineralrelated failures and maintain reliable heating performance in a seasonal camper or motorhome. Troubleshooting a cold tank: install this part when diagnosing slow heating, low output, or repeated element failures in Suburban SWseries water heaters. Specifications and fit Model: 520900 Type: Screwin heater element Power: 1440W Voltage: 120V Compatibility: Suburban SW series water heaters, SW4DE–SW16VE models Replaces: 520789, SU520789, 232794 Installation notes Screwin design allows tool or minimaltool replacement; follow vehicle and waterheater manufacturer instructions for safe installation and electrical isolation. This replacement element provides a direct, reliable way to restore heating performance and reduce future failures in compatible Suburban SWseries water heaters.