07903-00 - Johnson Pump 1000GPH Ultima Combo Pump 3/4" Hose Dura Port

1000 GPH Ultima Combo Automatic Submersible Bilge Pump 12V

Johnson Pump Marine Ultima Combo bilge pumps are JPM's proven Cartridge Bilge Pumps combined with the non-clogging electronic switch Ultima Switch™ for automatic operation. The electronic automatic switch Ultima Switch™ uses the patented Mirus field effect detector cells producing micro-electrical fields that detect disruptions caused by level of water present in the bilge and automatically activates and deactivates the pump.

CE-Approved

Features:

• Pre-configured with an electronic Ultima Switch for automatic operation
• Capacities 500 GPH, 750 GPH, 1000 GPH and 1250 GPH
• Extremely energy efficient
• Water-cooled motor for long service intervals
• Compact, all-in-one motor/impeller unit with stainless steel (SS2343) shaft
• No tools needed for maintenance, no need for complete disassembly. You can now leave the pump casing attached to both the boat and the hoses. 
• 500 GPH, 750 GPH, and 1000 GPH pumps have easy-to-install Dura-Port discharge ports to eliminate stress cracking caused by over-tightened hose clamps
• 500 GPH, 750 GPH, and 1000 GPH pumps are delivered including both a straight and a 90° smooth elbow Dura-Port as well as a removable check valve
• Meets the international standard, ISO 8849 marine
• Pump body: Thermoplastic
• Shaft seal: Lip seal
• Shaft: Stainless steel
• Voltage: 12v
• Wire size: 16GA
• Hose size: 3/4"
• Includes Dura-port connection

Specifications

• Capacity 3ft (0.9 m) head (13.6V/27.2): 50 l/min - 800 GPH
• Capacity straight (13.6V/27.2V): 63 l/min - 1000 GPH
• Amperage: 3.2 A
• Fuse size: 5 A
• Connection: 3/4"
• Length: 4.41" (112 mm)
• Width: 4.25" (108 mm)
• Height: 3.35" (85 mm)
• Weight: 14.4 oz.

The Johnson Pump 07903-00 Ultima Combo Pump is an automatic submersible bilge pump designed for marine applications requiring reliable water removal. This 12V unit integrates a 1000 GPH cartridge bilge pump with an Ultima Switch, enabling automatic operation through Mirus field effect detector cells that sense water levels. It is suitable for vessels needing an efficient, self-activating bilge solution. The pump features a compact, all-in-one motor/impeller unit with a stainless steel shaft and a water-cooled motor for extended service intervals. Maintenance is simplified as the pump casing can remain attached to the boat and hoses, requiring no special tools for component access. It includes Dura-Port discharge ports to prevent stress cracking from over-tightened hose clamps, and comes with both straight and 90-degree smooth elbow Dura-Ports, along with a removable check valve. This pump addresses the need for automated bilge management in marine environments.