Cross-Reference Drop-In Finder
Sump Pump Replacement Finder
Direct drop-in replacements for 140 contractor-grade and aging pumps. Match discharge threading and switch clearances without re-piping.
Select Your Model to Find Drop-In Matches
When replacing a failed pump during an emergency, matching the discharge thread diameter and switch clearance saves critical hours of PVC cutting. Select your pump model below to view tested drop-in replacements:
| Original Model | Discharge / Specs | Action |
|---|---|---|
| Zoeller M53 Mighty-Mate 1/3 HP Submersible Sump Pump | 1-1/2" NPT · 1/3 HP | View Replacements |
| Wayne CDU980E 3/4 HP Submersible Sump Pump | 1-1/2" NPT · 3/4 HP | View Replacements |
| Liberty Pumps 257 1/3 HP Cast Iron Sump Pump | 1-1/2" NPT · 1/3 HP | View Replacements |
| Basement Watchdog BWE 1000 Emergency Battery Backup Sump Pump System | 1-1/2" NPT · 12V DC Emergency | View Replacements |
| Zoeller ProPak53 Pre-Assembled Primary + 508 Battery Backup Package | 1-1/2" Pre-Plumbed Union · 1/3 HP AC + 12V DC Backup | View Replacements |
| Liberty Pumps LE51A 1/2 HP Submersible Sewage Ejector Pump | 2" FNPT · 1/2 HP | View Replacements |
| Superior Pump 91250 1/4 HP Submersible Thermoplastic Utility Pump | 1-1/4" NPT & 3/4" Garden Hose Adapter · 1/4 HP | View Replacements |
| Zoeller M53 1/3 HP Mighty-Mate Cast Iron Sump Pump (10ft) | 1-1/2" NPT · 1/3 HP | View Replacements |
| Zoeller M53 1/3 HP Mighty-Mate Cast Iron Sump Pump (15ft) | 1-1/2" NPT · 1/3 HP | View Replacements |
| Zoeller M53 1/3 HP Mighty-Mate Cast Iron Sump Pump (25ft) | 1-1/2" NPT · 1/3 HP | View Replacements |
| Zoeller M53 1/3 HP Mighty-Mate Cast Iron Sump Pump (35ft) | 1-1/2" NPT · 1/3 HP | View Replacements |
| Zoeller M53 1/3 HP Mighty-Mate Cast Iron Sump Pump (50ft) | 1-1/2" NPT · 1/3 HP | View Replacements |
| Zoeller M53 1/3 HP Mighty-Mate Cast Iron Sump Pump (20ft) | 1-1/2" NPT · 1/3 HP | View Replacements |
| Zoeller M53 1/3 HP Mighty-Mate Cast Iron Sump Pump (standard) | 1-1/2" NPT · 1/3 HP | View Replacements |
| Zoeller M53 1/3 HP Mighty-Mate Cast Iron Sump Pump (pro-kit) | 1-1/2" NPT · 1/3 HP | View Replacements |
| Zoeller M57 1/3 HP Heavy Cast Iron Sump Pump (10ft) | 1-1/2" NPT · 1/3 HP | View Replacements |
| Zoeller M57 1/3 HP Heavy Cast Iron Sump Pump (15ft) | 1-1/2" NPT · 1/3 HP | View Replacements |
| Zoeller M57 1/3 HP Heavy Cast Iron Sump Pump (25ft) | 1-1/2" NPT · 1/3 HP | View Replacements |
| Zoeller M57 1/3 HP Heavy Cast Iron Sump Pump (35ft) | 1-1/2" NPT · 1/3 HP | View Replacements |
| Zoeller M57 1/3 HP Heavy Cast Iron Sump Pump (20ft) | 1-1/2" NPT · 1/3 HP | View Replacements |
| Zoeller M57 1/3 HP Heavy Cast Iron Sump Pump (50ft) | 1-1/2" NPT · 1/3 HP | View Replacements |
| Zoeller M57 1/3 HP Heavy Cast Iron Sump Pump (standard) | 1-1/2" NPT · 1/3 HP | View Replacements |
| Zoeller M57 1/3 HP Heavy Cast Iron Sump Pump (pro-kit) | 1-1/2" NPT · 1/3 HP | View Replacements |
| Zoeller M98 1/2 HP Flow-Mate High Capacity Sump Pump (10ft) | 1-1/2" NPT · 1/2 HP | View Replacements |
| Zoeller M98 1/2 HP Flow-Mate High Capacity Sump Pump (15ft) | 1-1/2" NPT · 1/2 HP | View Replacements |
| Zoeller M98 1/2 HP Flow-Mate High Capacity Sump Pump (25ft) | 1-1/2" NPT · 1/2 HP | View Replacements |
| Zoeller M98 1/2 HP Flow-Mate High Capacity Sump Pump (35ft) | 1-1/2" NPT · 1/2 HP | View Replacements |
| Zoeller M98 1/2 HP Flow-Mate High Capacity Sump Pump (50ft) | 1-1/2" NPT · 1/2 HP | View Replacements |
| Zoeller M98 1/2 HP Flow-Mate High Capacity Sump Pump (20ft) | 1-1/2" NPT · 1/2 HP | View Replacements |
| Zoeller M98 1/2 HP Flow-Mate High Capacity Sump Pump (standard) | 1-1/2" NPT · 1/2 HP | View Replacements |
| Zoeller M98 1/2 HP Flow-Mate High Capacity Sump Pump (pro-kit) | 1-1/2" NPT · 1/2 HP | View Replacements |
| Zoeller M63 1/3 HP Premium Sump Pump with LED Plug (10ft) | 1-1/2" NPT · 1/3 HP | View Replacements |
| Zoeller M63 1/3 HP Premium Sump Pump with LED Plug (15ft) | 1-1/2" NPT · 1/3 HP | View Replacements |
| Zoeller M63 1/3 HP Premium Sump Pump with LED Plug (25ft) | 1-1/2" NPT · 1/3 HP | View Replacements |
| Zoeller M63 1/3 HP Premium Sump Pump with LED Plug (20ft) | 1-1/2" NPT · 1/3 HP | View Replacements |
| Zoeller M63 1/3 HP Premium Sump Pump with LED Plug (35ft) | 1-1/2" NPT · 1/3 HP | View Replacements |
| Zoeller M63 1/3 HP Premium Sump Pump with LED Plug (50ft) | 1-1/2" NPT · 1/3 HP | View Replacements |
| Zoeller M63 1/3 HP Premium Sump Pump with LED Plug (standard) | 1-1/2" NPT · 1/3 HP | View Replacements |
| Zoeller M63 1/3 HP Premium Sump Pump with LED Plug (pro-kit) | 1-1/2" NPT · 1/3 HP | View Replacements |
| Zoeller N53 1/3 HP Manual Submersible Sump Pump (10ft) | 1-1/2" NPT · 1/3 HP | View Replacements |
| Zoeller N53 1/3 HP Manual Submersible Sump Pump (15ft) | 1-1/2" NPT · 1/3 HP | View Replacements |
| Zoeller N53 1/3 HP Manual Submersible Sump Pump (25ft) | 1-1/2" NPT · 1/3 HP | View Replacements |
| Zoeller N53 1/3 HP Manual Submersible Sump Pump (20ft) | 1-1/2" NPT · 1/3 HP | View Replacements |
| Zoeller N53 1/3 HP Manual Submersible Sump Pump (35ft) | 1-1/2" NPT · 1/3 HP | View Replacements |
| Zoeller N53 1/3 HP Manual Submersible Sump Pump (50ft) | 1-1/2" NPT · 1/3 HP | View Replacements |