Description
Little Giant 6-CIA 506162 Submersible Sump Pump | 1/3 HP, Cast Iron
A proven performer in the Little Giant 6-Series, the 6-CIA 506162 Submersible Sump Pump is engineered for continuous-duty dewatering and water transfer in residential and light commercial applications. Compact, powerful, and dependable, this pump is a top choice for homeowners, facility managers, and contractors needing reliable water removal in tight spaces.
With its 1/3 HP oil-cooled motor and rugged cast-iron housing, the 6-CIA delivers up to 46 GPM at 5 feet of head and features a maximum shut-off height of 18 feet. Designed to fit into a 5-gallon bucket, it’s perfect for shallow sump basins, crawl spaces, transformer vaults, elevator pits, basements, and other confined areas where durability and performance are critical.
Key Features & Benefits
-
Compact Yet Powerful – 1/3 HP motor delivers 46 GPM (2,760 GPH) at 5 ft of head
-
Cast-Iron Construction – Provides long-lasting durability for continuous-duty applications
-
Fits in a 5-Gallon Bucket – Ideal for small or shallow sump basins and confined spaces
-
Non-Clog Impeller – Nylon impeller design handles up to 1/8" solids for worry-free operation
-
Automatic Operation – Integral diaphragm switch provides dependable on/off cycling
-
Thermal Overload Protection – Built-in safeguards extend motor life under heavy use
-
Versatile Use – Perfect for basements, crawl spaces, elevator pits, transformer vaults, loading docks, and other dewatering needs
Performance Ratings
-
Horsepower: 1/3 HP
-
Voltage: 115 VAC, single-phase
-
Amps (Full Load / Start): 9 A / 14.3 A
-
Max Flow Rate (60 Hz): 46 GPM / 2,760 GPH
-
Max Head Height: 18 ft
-
Cord Length: 10 ft (SJTW 16-3)
-
Max Fluid Temperature: 140 °F
-
Duty Rating: Continuous duty, CSA approved
-
Warranty: 36 months

Materials of Construction
-
Pump Body: Cast iron
-
Volute: Polypropylene
-
Impeller: Nylon, non-clog design
-
Motor Shaft: 420 stainless steel
-
Seals: Carbon/ceramic, nitrile
-
Bearings: Bronze sleeve bearing
-
Fasteners: Stainless steel
Common Applications
-
Basement sump systems
-
Crawl space and foundation dewatering
-
Transformer vaults and elevator pits
-
Loading dock water removal
-
Light commercial water transfer
A Trusted Submersible Pump for Reliable Water Removal
Built with the durability and performance Little Giant is known for, the 6-CIA Submersible Sump Pump is a compact powerhouse designed to tackle water transfer and dewatering jobs with ease. Whether used in a basement, crawl space, or industrial setting, this pump delivers reliable, continuous-duty performance backed by a 3-year warranty.















