Shopping from Canada? 
Go to Defender Canada!
IWAKI
IWAKI America Magnetic Drive Raw Water Pump
Item: #870839 | Part Number: Not Selected$227.99 - $646.99
Description
The IWAKI America Magnetic Drive Raw Water Pump delivers reliable, maintenance-friendly performance with a seal-less, magnetically coupled design. Built from glass fiber reinforced polypropylene, it runs quietly and efficiently while resisting corrosion and extending service life.
IWAKI America Magnetic Drive Raw Water Pump Item # 870839
Description
Iwaki America Magnetic Drive Raw Water Pumps are magnetically coupled, non-metallic centrifugal pumps. All IWAKI Pumps have a One Year warranty.
Features:
- Twin bearing system handles thrust loads, extends service life
- Hollow rotating/internal cooling circuit reduces bearing temperature
- Compact and quiet, energy efficient design
- Few moving parts for easy maintenance
- Totally enclosed, permanent split capacitor motors are compact, cool and economical
- Tolerance to voltage variation without overheating
Specifications:
- Pump Body: GFRPP- Glass Fiber Reinforced Polypropylene
- Impeller: GFRPP- Glass Fiber Reinforced Polypropylene
- Shaft Seal: No Seals On Mag Drive Pumps, FPM/FKM (Viton) Body O-Ring, EPDM Optional
- Shaft: Rotating Ceramic Spindle
- Wetted Bearing Materials: PTFE (Teflon) Impeller to Shaft Bearing. Ceramic Thrust Ring
- 115V/1536 GPH (MD-70RLT-115):
- Nominal Voltage: 115V AC
- Port Size: 1" NPT Threaded Male Inlet and Outlet
- Flow: Up to 25.6 GPM (at zero pressure)
- Pressure: Up to 31.8' of Head (at zero flow)
- 115V/2136 GPH (MD-100RLT-115):
- Nominal Voltage: 115V AC
- Port Size: 1" NPT Threaded Male Inlet and Outlet
- Flow: Up to 35.6 GPM (at zero pressure)
- Pressure: Up to 39.0' of Head (at zero flow)
- 115V/300 GPH (MD-15RT-115NL):
- Nominal Voltage: 115V AC
- Port Size: 1/2" NPT Threaded Male Inlet and Outlet
- Flow: Up to 5.0 GPM (at zero pressure)
- Pressure: Up to 11.1' of Head (at zero flow)
- 115V/492 GPH (MD-20RT-115NL):
- Nominal Voltage: 115V AC
- Port Size: 3/4" NPT Threaded Male Inlet and Outlet
- Flow: Up to 8.2 GPM (at zero pressure)
- Pressure: Up to 14.1' of Head (at zero flow)
- 115V/600 GPH (MD-30RT-115NL):
- Nominal Voltage: 115V AC
- Port Size: 3/4" NPT Threaded Male Inlet and Outlet
- Flow: Up to 10.0 GPM (at zero pressure)
- Pressure: Up to 17.7' of Head (at zero flow)
- 115V/822 GPH (MD-40RT-115NL):
- Nominal Voltage: 115V AC
- Port Size: 3/4" NPT Threaded Male Inlet and Outlet
- Flow: Up to 13.7 GPM (at zero pressure)
- Pressure: Up to 21.3' of Head (at zero flow)
- 220V/1536 GPH (MD-70RT-220):
- Nominal Voltage: 220V AC
- Port Size: 1" NPT Threaded Male Inlet and Outlet
- Flow: Up to 25.6 GPM (at zero pressure)
- Pressure: Up to 31.8' of Head (at zero flow)
- 220V/2136 GPH (MD-100RT-220):
- Nominal Voltage: 220V AC
- Port Size: 1" NPT Threaded Male Inlet and Outlet
- Flow: Up to 35.6 GPM (at zero pressure)
- Pressure: Up to 39.0' of Head (at zero flow)
- 220V/600 GPH (MD-30RT-220):
- Nominal Voltage: 220V AC
- Port Size: 3/4" NPT Threaded Male Inlet and Outlet
- Flow: Up to 10 GPM (at zero pressure)
- Pressure: Up to 17.7' of Head (at zero flow)
- 220V/822 GPH (MD-40RT-220):
- Nominal Voltage: 220V AC
- Port Size: 3/4" NPT Threaded Male Inlet and Outlet
- Flow: Up to 13.7 GPM (at zero pressure)
- Pressure: Up to 21.3' of Head (at zero flow)
MD-15/20 Raw Water Pump Data Sheet
Part Numbers for IWAKI America Magnetic Drive Raw Water Pump
Reviews
Rated 5 out of
5
by
Dave D from
very efficent pump
I bought one years ago works great and less amperage draw!
Date published: 2026-04-21
Rated 1 out of
5
by
Thomas from
poor quality
poor quality pump, a weak point in the water exit point, breaks easily
Date published: 2025-12-01
Rated 5 out of
5
by
Emil from
Nice motor at a reasonable price.
Exact replacement motor for the reverse cycle ac/heat system for my boat.
Date published: 2025-11-01