Best Electric Water Pump For Ls: 10 Options Compared

#1 · Best Overall

1. JEGS 555-50939

• Weight: 8.4 lb
• Compatible with Vehicle Type: Car

Best for: Specified 12-volt LS installs.

Why it ranks #1: Lists GM LS Gen III and Gen IV fit, 40 GPM at 12 volts and 6 amps, and includes hardware and gaskets.

The JEGS pump pairs a stated 40 GPM flow rate with explicit 12-volt, 6-amp electrical requirements, giving LS builders concrete numbers for planning a powered cooling setup. Its listing covers GM LS Gen III and Gen IV engines and includes hardware and gaskets for the installation workflow.

The 12-volt, 6-amp specification lets buyers account for the pump’s electrical draw when laying out an LS Gen III or Gen IV installation. Its 40 GPM rating supplies a stated flow reference, while the 1.500-inch outside-diameter inlet and 1.250-inch outside-diameter outlet help with hose and connection planning. The 7-inch overall depth is useful when checking available space, and included hardware and gaskets provide installation components in the package. The black powder-coated aluminum finish completes the listed construction details.

Skip it if you need LS1, LS2, LS3, or LS6 compatibility stated by name; DEEPMOTOR DM-2808 lists those engines.

This is a practical match for a GM LS Gen III or Gen IV builder who needs stated electrical draw, port diameters, and pump depth for installation planning. Its listed engine coverage is the key fit boundary.

Listed on Amazon as: JEGS Electric Water Pump, 40 GPM GM LS GEN III & Gen IV Engines [Black]

#2 · Best Sealed Housing

2. Aeromotive 24304

• Material: 100% Aeromotive
• Compatible with Vehicle Type: Car

Best for: LS builders valuing O-ring sealing.

Why it ranks #2: Direct-mount LS pump rated 40 GPM at 2 psi and 13.5 volts; its casing uses O-ring sealing and included NPT fittings.

An O-ring-sealed pump casing distinguishes the Aeromotive 24304, while its listed 40 GPM flow at 2 psi and 13.5 volts gives builders a detailed operating reference. The direct-mount billet aluminum pump is identified for GM LS engines and includes 1-1/2-inch NPT inlet and 1-1/4-inch NPT outlet fittings.

The stated 40 GPM at 2 psi and 13.5 volts gives buyers a flow figure with pressure and voltage context for evaluating an LS cooling setup. Its direct-mount format and included 1-1/2-inch NPT inlet and 1-1/4-inch NPT outlet fittings help clarify installation and connection planning. The casing uses O-ring sealing rather than fiber or paper gaskets, a construction choice the listing associates with improved reliability. The brushed motor is described as requiring no additional electronic components, simplifying the stated electrical setup.

Skip it if you need a stated amperage figure; JEGS 555-50939 specifies 6 amps for its 12-volt pump.

This fits GM LS builders who want direct mounting, included NPT fittings, and a flow figure stated with pressure and voltage. Account for the missing amperage specification when planning the electrical circuit.

Listed on Amazon as: Aeromotive 24304 Electric Water Pump for GM LS Engines, Direct Mount Billet Aluminum

#3 · Best Complete Kit

3. CVF Racing B-LSX-EWP

• Weight: 10 lb
• Material: Aluminum
• Compatible with Vehicle Type: Car

Best for: LS builders needing included connections.

Why it ranks #3: Specifies LS1, LS2, and LS3 fit with 35+ GPM flow, and includes gaskets, mounting hardware, inlet pipe, and connector wire.

The CVF Racing pump includes an inlet pipe and a 12-inch connector wire alongside its 35+ GPM rating, giving LS1, LS2, and LS3 builders several installation pieces in one package. Its aluminum body has a black coating, and the listing also includes gaskets and mounting hardware.

A stated flow rate of 35+ GPM at 12 volts gives buyers a performance reference tied to the listed operating voltage. The included inlet pipe and 12-inch connector wire can simplify parts gathering during an LS1, LS2, or LS3 installation, while the supplied gaskets and mounting hardware address additional installation needs. Aluminum construction and a black-coated finish describe the pump body. The supplied details do not state amperage or inlet and outlet dimensions, so electrical planning and hose routing need other fit information.

Skip it if you need stated port sizes and electrical draw; JEGS 555-50939 specifies inlet and outlet diameters and 6-amp operation.

This fits an LS1, LS2, or LS3 project where an included inlet pipe, wiring lead, gaskets, and mounting hardware help consolidate installation parts. Check port and electrical requirements separately before committing to the setup.

Listed on Amazon as: Black Electric Water Pump for Chevy LS1 LS2 LS3 Engines (35+ GPM)

#4 · Best LS-Series Kit

4. Meziere WP119S

• Weight: 8.5 lb
• Material: Aluminum
• Compatible with Vehicle Type: Car, Truck

Best for: LS pump kit shoppers.

Why it ranks #4: The listing identifies GM LS-Series compatibility and includes gaskets, hardware, and wiring in an aluminum electric pump kit.

The Meziere WP119S is identified as a GM LS-Series electric pump kit with a 1-1/4-inch hose-barb inlet, giving builders a concrete connection detail to consider. Its listing specifies aluminum construction and includes gaskets, hardware, and wiring, supporting buyers who want several installation items grouped with the pump.

The 1-1/4-inch hose-barb inlet gives installers a specific hose connection size to account for during routing and parts selection. Because the listing identifies the pump for GM LS-Series applications, it also makes the intended engine family clear. Gaskets, hardware, and wiring are listed as included, which can reduce the number of separate installation components to gather. Aluminum construction and a black anodized finish round out the stated build details. No flow rate or electrical operating specifications are supplied, limiting performance and circuit planning from this listing alone.

Skip it if you require a published flow rate and voltage; CVF Racing B-LSX-EWP states 35+ GPM at 12 volts.

This suits an LS-Series builder who values a named hose-barb inlet size and a kit listing that includes gaskets, hardware, and wiring. Look elsewhere if flow and electrical figures are essential to selection.

Listed on Amazon as: Meziere WP119S Black LS-1 Electric Water Pump

#5

5. Moroso 63566

• Weight: 9.8 lb
• Material: Aluminum
• Compatible with Vehicle Type: Car, Truck

Best for: Moroso LS performance builds.

Why it ranks #5: Explicitly listed as an electric water pump for an LS engine, with aluminum construction and car and truck compatibility.

The Moroso 63566 is explicitly identified as an electric water pump for LS engines, giving its intended application a clear place in a performance build plan. Its aluminum construction and car-and-truck vehicle compatibility provide basic fit context, although the supplied listing leaves flow and connection details unspecified.

The LS-engine identification helps buyers place the Moroso 63566 within an LS cooling-system parts search, while its aluminum construction supplies a stated material detail for the pump. Compatibility is listed for cars and trucks, so the vehicle category is broader than car-only entries. However, the supplied information does not provide flow, voltage, amperage, or port dimensions. That means builders must obtain those figures elsewhere before planning circuit capacity, hose routing, or evaluating the pump against a specific cooling requirement.

Skip it if you need published flow and electrical figures; Aeromotive 24304 states 40 GPM at 2 psi and 13.5 volts.

This is a basic option for an LS car or truck project where the model’s engine designation and aluminum construction are sufficient starting points. Obtain flow, electrical, and port information before finalizing fit and system planning.

Listed on Amazon as: Moroso 63566 Electric Water Pump for LS Engine

#6 · Highest Listed Flow

6. Speedmaster PCE194.1016

• Weight: 9 lb
• Material: Aluminum
• Compatible with Vehicle Type: Car

Best for: LS race-application builders.

Why it ranks #6: Lists LS1 through LS7 and several LS displacements, plus 40 GPM at 12 volts; its disclaimer limits use to racing applications.

A stated 40 GPM flow rate and compatibility spanning LS1 through LS7 and several listed LS displacements make the Speedmaster pump broadly specified for LS projects. Its polished aluminum construction and direct OEM-style fit are listed alongside a clear boundary: the product is intended for racing applications, not street use.

The 40 GPM flow figure gives builders a concrete performance reference, while the listed LS1, LS2, LS3, LS6, LS7, 4.8L, 5.3L, 6.0L, and 6.2L coverage helps identify its stated engine range. The standard bolt pattern and direct OEM-style fit can inform mounting plans, and polished aluminum describes the finish. The legal disclaimer limits its use to racing applications and says it is not for street use. The listing also specifies that a hose adapter is required and included.

Skip it if you need a street-use pump; Meziere WP119S is listed for GM LS-Series applications without a racing-only disclaimer.

This suits a racing-project builder seeking broad listed LS coverage, 40 GPM flow, and an included hose adapter. Its explicit racing-only, not-for-street-use limitation is decisive for road-going builds.

Listed on Amazon as: Electric Water Pump Compatible with GM LS LS1/LS2/LS3/LS6/LS7/4.8L/5.3L/6.0L/6.2L – 40+ GPM Flow Rate, Polished Aluminum, Frees HP from Belt-Driven Pump

#7

7. Pateyney YMXDM-2807

• Weight: 3.64 kg
• Material: Aluminum
• Compatible with Vehicle Type: Car

Best for: High-flow LS swap projects.

Why it ranks #7: Designed for LS1, LS2, LS3, and LS6 and lists 40+ GPM flow, though electrical and connection specifications are not provided.

A stated flow rate above 40 GPM is the clearest draw of the Pateyney aluminum pump, giving LS builders a high-flow option for a cooling-system project. Its title lists LS1, LS2, LS3, and LS6 compatibility, while included installation hardware supports the installation process once the application is confirmed.

The advertised 40+ GPM flow rate gives buyers a concrete flow figure to weigh when planning an LS cooling setup. Aluminum construction keeps the pump’s material straightforward, and the included installation hardware means the package includes mounting-related pieces rather than requiring buyers to source every installation item separately. Listed compatibility covers LS1, LS2, LS3, and LS6, which helps narrow the intended engine range; the supplied information does not specify voltage, amperage, or inlet and outlet dimensions for planning the electrical and hose connections.

Skip it if you need published voltage, amperage, or port dimensions; JEGS 555-50939 lists 12 volts, 6 amps, and inlet and outlet sizes.

This suits an LS1, LS2, LS3, or LS6 builder prioritizing a stated 40+ GPM rate and included installation hardware. Plan to verify electrical and hose details independently, since those specifications are not supplied here.

Listed on Amazon as: LS aluminum electric water pump for LS1 LS2 LS3 LS6 (Black)

#8

8. DEEPMOTOR DM-2808

• Material: Aluminum

Best for: Billet LS cooling upgrades.

Why it ranks #8: Lists LS1, LS2, LS3, and LS6 fit and 35 GPM at 12 volts, with billet aluminum construction and a limited one-year warranty.

CNC-machined billet aluminum is the defining feature of the DEEPMOTOR pump, paired with a stated 35 GPM flow rate at 12 volts. The listing names LS1, LS2, LS3, and LS6 applications, making this a clearly targeted option for builders planning an LS cooling-system replacement or upgrade.

The 35 GPM rating at 12 volts gives LS builders a specific flow and operating-voltage reference for evaluating a cooling-system project. CNC billet aluminum construction is described as corrosion resistant and durable, which speaks to material selection for an engine-bay component. Listed compatibility includes LS1, LS2, LS3, and LS6, and the product description positions it for replacement or upgrade work. The supplied details do not specify amperage, connection dimensions, or the exact contents of the pictured kit, so installation planning needs those details confirmed.

Skip it if you need listed port dimensions and amperage; JEGS 555-50939 provides inlet and outlet sizes and a 6-amp specification.

Choose this for an LS1, LS2, LS3, or LS6 replacement or upgrade where billet aluminum construction and a 12-volt flow rating match the plan. Confirm electrical draw and connection dimensions for the intended installation.

Listed on Amazon as: CNC Billet Aluminum Electric Water Pump Compatible with LS1 LS2 LS3 LS6 Engines, 12V High Flow 35 GPM Engine Cooling Pump Kit with Wiring Harness, Hardware and Gaskets (Black)

#9

9. Meziere WP319S

• Weight: 0.27 g
• Material: Aluminum
• Compatible with Vehicle Type: Car

Best for: Street-style LS pump kits.

Why it ranks #9: Its description identifies a GM LS-Series electric street-style pump kit, but the listing gives little flow or electrical detail.

The Meziere WP319S is explicitly labeled a black aluminum street-style electric pump kit for GM LS-Series applications, distinguishing it from listings framed only around racing. Its description names a 1-1/4-inch hose-barb outlet and includes gaskets, hardware, and wiring for installation planning.

The street-style designation and GM LS-Series application make the intended use and engine family clear at a glance. A listed 1-1/4-inch hose-barb outlet gives installers a concrete connection point to match with hose routing. The description also lists gaskets, hardware, and wiring, which can reduce separate parts gathering during installation. Aluminum construction with black anodizing supplies the stated material and finish. No flow rate, voltage, or amperage appears in the supplied information, so performance and electrical planning require additional specifications.

Skip it if you need published flow and voltage figures; CVF Racing B-LSX-EWP specifies 35+ GPM at 12 volts.

This fits a street-style GM LS-Series project where a stated hose-barb outlet and included gaskets, hardware, and wiring suit the installation plan. Seek flow and electrical specifications if those figures guide your selection.

Listed on Amazon as: Meziere WP319S Black Billet Electric Water Pump for Small Block Chevy LS1

#10

10. ProForm 66225BK

• Weight: 7 lb
• Material: Aluminum
• Compatible with Vehicle Type: Car

Best for: Black aluminum pump shoppers.

Why it ranks #10: The description identifies a small-block Chevy pump, not an LS-specific application, so it is the weakest match for this search.

The ProForm 66225BK is described as a black aluminum electric water pump with a 35+ GPM listing, offering a straightforward option for buyers focused on those stated features. Its supplied information labels the fit as vehicle specific, but does not identify LS engines in the title or details.

The 35+ GPM figure in the additional product description gives buyers a stated flow reference, and the aluminum construction identifies the pump’s material. Its black finish may be relevant to an installation where that appearance is preferred. However, the supplied listing describes the fit as vehicle specific without naming an LS engine family or providing connection dimensions. That leaves engine application, hose planning, and electrical requirements unresolved in the provided information, so those points matter before selecting it for an LS project.

Skip it if you need named LS compatibility; Pateyney YMXDM-2807 lists LS1, LS2, LS3, and LS6 applications.

Consider this only when its vehicle-specific fit is independently established for the intended LS setup and the listed 35+ GPM figure suits the plan. The supplied details leave engine and connection fit unclear.

Listed on Amazon as: Proform 66225BK Electric Water Pump , Black