Description
Johnson Pump 1250 GPH Ultima Bilge Pump | Boat Supply Store
Address common bilge water accumulation with the Johnson Pump Ultima Bilge 1250 GPH, engineered for automatic, reliable dewatering. This 12V DC pump delivers a straight-line flow rate of 1250 GPH, reducing to 800 GPH at a 3 ft head, and operates with a minimal 3A draw. Its compact ABS body measures 142mm in length, 82mm in width, and 117mm in height, making it suitable for tight installations on offshore sportfishing vessels or coastal cruising yachts.
Key Features
- Integrated Ultima Switch sensing technology for mercury-free automatic operation
- Compact, all-in-one unit design minimizes installation space
- Tool-free maintenance allows for quick impeller and basket access
- Removable clip-on basket simplifies cleaning and debris removal
- Versatile discharge options with included threaded 1.1/4" & 1.1/8" ports
- Energy-efficient water-cooled motor ensures longevity and consistent performance
- 3-wire configuration provides seamless auto or manual override functionality
- Reliable construction with ABS body, stainless steel shaft, and lip seal
Specifications
| Product Specifications | |
|---|---|
| Voltage | 12V DC |
| Flow Rate (Straight) | 1250 GPH |
| Flow Rate (3 ft Head) | 800 GPH |
| Amperage Draw | 3A |
| Fuse Size | 5A |
| Discharge Ports | 1-1/8" & 1-1/4" |
| Body Material | ABS |
| Shaft Material | Stainless Steel |
| Seal Type | Lip seal |
| Length | 142mm |
| Width | 82mm |
| Height | 117mm |
| Weight | 0.66kg |
| Switch Type | Integrated Ultima Switch |
| Basket Type | Removable clip-on |
| Maintenance Access | Tool-free impeller cover |
| Check Valve | Removable |
Who This Is For
Boat owners and marine professionals requiring an automatic bilge pump with intelligent sensing and minimal maintenance. This pump is ideal for those seeking a compact, integrated solution for efficient water removal in various vessel types.
How It Compares
| Feature | Johnson Pump 1250 GPH Ultima Bilge Pump | Integrated electronic sensor |
|---|---|---|
| GPH (Straight) | 1250 GPH | 1100 GPH |
| Integrated Switch | Yes (Ultima 'field effect' sensing) | Yes |
| Discharge Ports Included | 1-1/8" & 1-1/4" threaded | 1-1/8" |
| Amperage Draw | 3 A | 2.5 A |
| Maintenance | Tool-free, removable impeller cover and basket | Tool-free access to impeller |
Common Concerns Answered
Why is the Johnson Pump Ultima Bilge 1250 GPH more expensive than basic bilge pumps?
The higher initial cost reflects the integrated 'field effect' sensing technology, eliminating the need for separate float switches, and the premium materials ensuring long-term reliability and reduced maintenance compared to simpler models.
Are there any known issues with the sensor sensitivity?
While occasional reports of sensor sensitivity in highly specific water conditions exist, they are rare and generally not a widespread concern. The advanced field effect sensing offers superior reliability in most operational environments.
How does the integrated switch contribute to reliability?
By eliminating external wiring and moving parts associated with traditional float switches, the integrated Ultima switch design significantly reduces potential points of failure, making the pump more robust and maintenance-free.
Frequently Asked Questions
What is the maximum flow rate of the Johnson Pump Ultima Bilge 1250 GPH?
The maximum flow rate is 1250 Gallons Per Hour (GPH) under straight discharge conditions.
What size hose is compatible with the Johnson Pump Ultima Bilge 1250 GPH?
This pump is designed for use with both 1-1/8 inch and 1-1/4 inch diameter hoses, with both threaded discharge ports included.
Does the Johnson Pump Ultima Bilge 1250 GPH have an integrated switch?
Yes, it features unique 'field effect' sensing technology integrated directly into the pump body, functioning as an automatic switch without external components.
What voltage does the Johnson Pump Ultima Bilge 1250 GPH operate on?
The pump operates on a standard 12V DC electrical system.
Is the Johnson Pump Ultima Bilge 1250 GPH easy to maintain?
Yes, maintenance is exceptionally easy with tool-free access to the impeller cover and a removable clip-on basket, streamlining cleaning and servicing.
