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Mayfair Replacement Automatic Bilge Pump by Johnson Pump
Stay ahead of bilge buildup with this automatic Johnson blige pump, available in 500, 750, or 1000 GPH models. Smart sensors activate the pump when water levels rise, and a manual test button lets you check functionality on the spot. The twist-lock cartridge design makes cleaning or replacement quick and tool-free. Ready to handle saltwater and tough marine conditions, it installs easily and runs quietly to maintain onboard stability. With a 3-year warranty and self-regulating performance, it’s a reliable choice for keeping your bilge dry and your boat safe.
Direct replacement for older models of Mayfair Automatic Bilge Pumps with an Ultima Switch.
Features:
- Pre-configured with an electric Ultima Switch for automatic operation
- Extremely energy-efficient
- Water-cooled motor for long service intervals
- Compact, all-in-one motor/impeller unit with stainless steel shaft
- Easy-to-install Dura-Port discharge ports
- Includes both straight and 90° smooth elbow Dura-Port
- Meets international standard, ISO 8849 marine
Specifications:
- Dimensions: 4.41" Height x 4.25" Width x 3.35" Depth
| Part No. | Description | Capacity 3ft. Head | Capacity Straight | Voltage | Amperage | Fuse Size | Connection | Wire Size |
| 07503-00 | Ultima Combo 500 GPH | 33 l/min - 525 GPH | 40 l/min - 630 GPH | 12 V | 2.5 A | 5 A | 3/4" | 16 GA |
| 07703-00 | Ultima Combo 750 GPH | 44 l/min - 700 GPH | 50 l/min - 800 GPH | 12 V | 3 A | 5 A | 3/4" | 16 GA |
| 07903-00 | Ultima Combo 1000 GPH | 50 l/min - 800 GPH | 63 l/min - 1000 GPH | 12 V | 3.2 A | 5 A | 3/4" | 16 GA |
Click to Download Johnson Pump Automatic Bilge Pump User Manual
California Residents: 
WARNING
Cancer and Reproductive Harm -
P65Warnings.ca.gov
Other Details
- Google Product Type:
- Bilge Pump
- Wiser:
- Yes
- Size:
- 3/4"
- Voltage:
- 12v
- Product MPN:
- 07503-00, 07703-00, 07903-00
- Product UPC:
- 729321031707, 729321077033, 729321079037
- fbt:
- related products
- Fast Ship:
- In Stock Ships Today
- Type:
- Bilge Pump
- Style:
- Automatic