Johnson Pump Aqua Void Ultima Combo Bilge Pump, 500 GPH, 12V Automatic with Electronic Switch

The Johnson Pump Aqua Void Ultima Combo is a 12V automatic bilge pump rated at 500 GPH (600 GPH straight-line capacity at 38 L/min), built around a quick-change cartridge motor that lets you swap or upgrade the motor without cutting or splicing any wires. The pump body features a reinforced click-in basket for single-handed installation, cleaning, or inspection in tight bilge spaces, and the compact motor/impeller unit uses a 316 stainless steel shaft for long service life.

Automatic operation is handled by the included Ultima Switch, an electronic float-free switch that uses Mirus field effect detector cells to sense water level changes in the bilge and turn the pump on and off without moving parts, so it will not clog or stick from oil or debris. The pump includes both a straight and a 90-degree Dura-Port discharge fitting made of PA66/GF nylon, engineered to resist stress cracking from over-tightened hose clamps, plus a removable check valve. The motor is water-cooled for long service intervals and the ABS body, PC-ABS motor cartridge, and nitrile rubber shaft seal are built for continuous exposure to bilge water. The pump meets the ISO 8849 marine standard and is designed for 3/4 inch hose connections.

Specifications

• Brand: Johnson Pump
• Manufacturer Part Number: 10-13635-01
• Flow Rate: 500 GPH
• Straight-Line Capacity (12V): 600 GPH (38 L/min)
• Voltage: 12V
• Amperage Draw: 2.7A
• Fuse Rating: 3.5A
• Hose Connection: 3/4 inch
• Wire Size: 16 GA, TAC
• Weight: 1.2 pounds
• Body Material: ABS
• Dura-Port Material: PA66/GF nylon
• Shaft Material: 316 stainless steel
• Shaft Seal Material: Nitrile rubber
• Motor Cartridge Material: PC-ABS
• Pump Dimensions (W x H x L): 2.95 x 4.69 x 6.63 inches
• Style: Automatic
• Switch Type: Ultima electronic switch
• Standard Compliance: ISO 8849 marine

Frequently Asked Questions

What is the flow rate of the Johnson Pump Aqua Void Ultima Combo? The Johnson Pump 10-13635-01 Aqua Void Ultima Combo is rated at 500 GPH, with a straight-line capacity of 600 GPH (38 L/min) at 12V.

Does this bilge pump turn on automatically? Yes, the Aqua Void Ultima Combo includes the Ultima Switch, an electronic switch with no moving parts that detects bilge water level with Mirus field effect detector cells and automatically activates and deactivates the pump.

What voltage and amperage does the 10-13635-01 use? This pump runs on 12V and draws 2.7A, and it should be protected with a 3.5A fuse.

What hose size does the Aqua Void Ultima Combo need? The Johnson Pump 10-13635-01 uses a 3/4 inch hose connection, and it ships with both a straight and a 90-degree Dura-Port discharge fitting.

What materials is this bilge pump made from? The Aqua Void Ultima Combo has an ABS body, a PA66/GF nylon Dura-Port discharge, a 316 stainless steel shaft, a nitrile rubber shaft seal, and a PC-ABS motor cartridge.

Can the motor be replaced without rewiring the boat? Yes, the 10-13635-01 uses a quick-change motor connection with an included harness, so the cartridge motor can be swapped or upgraded without cutting or splicing any wires.

What are the dimensions of the Johnson Pump Aqua Void Ultima Combo? The pump measures 2.95 x 4.69 x 6.63 inches (width x height x length).

How much does this bilge pump weigh? The Johnson Pump 10-13635-01 weighs 1.2 pounds.

What is included with the Aqua Void Ultima Combo? This part number includes the pump body with reinforced click-in basket, the cartridge motor with wiring harness, the Ultima electronic switch, a straight Dura-Port fitting, a 90-degree Dura-Port fitting, and a removable check valve.

Is the Ultima Switch different from a standard float switch? Yes, the Ultima Switch used on the 10-13635-01 is fully electronic with no moving parts, unlike a mechanical float switch, which means it will not clog or stick from oil or debris in the bilge.

Does the Aqua Void Ultima Combo meet a marine standard? Yes, this pump meets the ISO 8849 marine standard.

Can I remove the pump basket without disconnecting the hoses? Yes, the reinforced click-in basket on the Johnson Pump 10-13635-01 can be removed for cleaning or inspection while the pump casing stays attached to the boat and hoses.