A strong electric fuel pump for a lawn mower should match the engine’s 12V system and deliver low, steady pressure suited to a carburetor. The JDMSPEED Universal Pump leads this lineup with a 3–6 PSI range, a listed flow above 70 L/H, and a socket wire included. The other options span 2–3.5 PSI to 5–9 PSI, with several specifying 2.5–4 PSI and 30 GPH.
That spread matters: a pump with pressure beyond the carburetor’s needs can contribute to flooding, while a connection-size mismatch can complicate installation. Compare the original pump or engine requirements with each listing before buying, and check whether the pump’s hose connections, wiring, and fuel compatibility suit your setup.
The JDMSPEED Universal Pump is the leading choice here for a lawn mower because it is listed for lawnmowers and other 12V equipment, provides 3–6 PSI, and lists flow above 70 L/H. Its kit includes a socket wire, which is a useful included component. Confirm that your mower’s carburetor accepts that pressure range and that its 0.315-inch tubing interface matches your fuel line before installation.
Our Top Picks

Listed for lawnmowers, it supplies 3–6 PSI and over 70 L/H, with a socket wire included and a 0.315-inch tubing interface.
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Best 3–6 PSI FitExplicitly covers lawn mowers and small engines, with 3–6 PSI, 30 GPH, 1.2 A current, and 0.32-inch inlet and outlet connections.
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Best Check ValveIts 2.5–4 PSI range suits low-pressure applications, and the listing describes a check valve intended to reduce backflow and noise.
View on Amazon- Longest Warranty YONEDA HEP02A Pump
Compare these lawn-mower fuel pump options
| # | Product | Material | Compatible with Vehicle Type | Weight | Operation Mode | Buy |
|---|---|---|---|---|---|---|
| 1 | 1. JDMSPEED Universal PumpBest Overall | Metal | ['ATV', 'Motorcycle'] | 0.3 kg | Electric | View on Amazon |
| 2 | 2. Clatoon Transfer PumpBest 3–6 PSI Fit | Metal | Car | 10.56 oz | Manual | View on Amazon |
| 3 | 3. LOCOPOW 12V PumpBest Check Valve | Aluminum, Brass | Cars,Lawn Mower,Trucks | 0.32 kg | 12v | View on Amazon |
| 4 | 4. YONEDA HEP02A PumpLongest Warranty | Brass | Car | — | Automatic | View on Amazon |
| 5 | 5. SOLLON HEP-02A PumpCheck-Valve Carburetor Setup | Brass | Lawn Mower | 0.31 kg | Electric | View on Amazon |
| 6 | 6. Nrkiscy HEP-02A PumpStandard-Hose Inline Fit | Plastic | Truck, ATV, Marine, Motor, UTV, Car, Boat… | — | Automatic | View on Amazon |
| 7 | 7. DTMAP 2–3.5 PSI PumpPrecision Low-Pressure Carburetor | Brass, Iron, Plastic | Car | 0.47 kg | Automatic | View on Amazon |
| 8 | 8. ENGINEMAN HEP-02A PumpGasoline-Diesel Transfer Range | Cast Iron, Copper | ATV, Car, Motorcycle, Truck | — | Electric | View on Amazon |
| 9 | 9. CarBole 2–3.5 PSI PumpLow-Pressure Bolt-Mount Setup | Cast Iron, Rubber | Car | 460 g | Electric | View on Amazon |
| 10 | 10. CarBole 5–9 PSI PumpHigher-Pressure Transfer Use | Cast Iron, Rubber | Car, Truck | — | Electric | View on Amazon |
Detailed Reviews: Best Electric Fuel Pump For Lawn Mower

#1 · Best Overall
1. JDMSPEED Universal Pump
- Material: Metal
- Compatible with Vehicle Type: ['ATV', 'Motorcycle']
- Weight: 0.3 kg
- Operation Mode: Electric
Best for: Broad-Use Metal Pump.
Why it ranks #1: Listed for lawnmowers, it supplies 3–6 PSI and over 70 L/H, with a socket wire included and a 0.315-inch tubing interface.
A stated flow above 70 L/h gives the JDMSPEED pump a higher listed throughput than many compact transfer options, enabling fuel delivery across compatible 12-volt carbureted equipment. Its 3–6 PSI output is specified for gasoline or diesel, covering lawn mowers and generators as well as other listed applications.
The 12V supply and output pressure of 3–6 PSI place this pump in low-pressure transfer use for carbureted engines, while the stated flow above 70 L/h supports a steady fuel supply. Metal construction and verified aluminum body facts speak to a durable housing, and the supplied socket wire provides a connection component for installation. Its 0.315-inch tubing interface and 2.638-inch mounting-hole spacing are practical fit checks before planning hose routing and mounting.
- Output pressure is specified at 3–6 PSI for low-pressure applications.
- Listed flow exceeds 70 L/h.
- Compatible with gasoline or diesel engines.
- Includes a socket wire and has metal construction.
- Its 3–6 PSI range may exceed the 2.5–4 PSI specified for some carbureted setups.
Skip it if you need a pump limited to 2.5–3.5 PSI; the DTMAP 12V Universal Electric Fuel Pump specifies that narrower low-pressure range.
This suits a mower owner seeking a 12V pump for gasoline or diesel transfer and valuing the stated high flow. Check the 3–6 PSI range, mounting spacing, and tubing interface against the engine and installation.
Full product details
| Brand | JDMSPEED |
|---|---|
| Body Material | Aluminum |
| Compatible with Vehicle Type | ['ATV', 'Motorcycle'] |
| Inlet Connection Size | 0.32 inches |
| Item Dimensions | 5.91 x 3.54 x 3.15 inches |
| Item Weight | 0.3 kg |
| Dimensions | 5.91 x 3.54 x 3.15 inches |
| Manufacturer | JDMSPEED |
| Part Number | HEP02A |
| Material | Metal |
| Model Number | JDM-E012 |
| Operation Mode | Electric |
| Outlet Connection Size | 0.31 inches |
| Product Style | fuel pump |
Listed on Amazon as: Universal Electric Fuel Pump Kit 12v 3-6 PSI Low Pressure Replacement For Carburetor Lawn Mower Gas Diesel Fuel Transfer Pump
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#2 · Best 3–6 PSI Fit
2. Clatoon Transfer Pump
- Material: Metal
- Compatible with Vehicle Type: Car
- Weight: 10.56 oz
- Operation Mode: Manual
Best for: Compact 30-GPH Transfer.
Why it ranks #2: Explicitly covers lawn mowers and small engines, with 3–6 PSI, 30 GPH, 1.2 A current, and 0.32-inch inlet and outlet connections.
A 30 GPH rating paired with 3–6 PSI output gives the Clatoon pump a clearly stated profile for low-pressure fuel transfer. Its 12V, 1.2A specification and listed use with lawn mowers, small engines, boats, and generators help buyers gauge electrical and equipment fit.
The plunger-type fuel supply is described as supporting continuous, stable fuel delivery, while the 30 GPH rating establishes its stated transfer capacity. A 12V supply with 1.2A current helps clarify the electrical requirement for installation. The 2.64-inch mounting-hole distance and 0.32-inch tubing interface provide useful dimensions for mounting and hose planning, and the listing covers gasoline and diesel transfer across several types of equipment.
- Plunger-type supply is described as continuous and stable.
- Rated at 30 GPH and 3–6 PSI.
- Electrical specification lists 12V and 1.2A.
- Mounting-hole spacing and 0.32-inch tubing interface are stated.
- Its 3–6 PSI range is higher at the low end than the DTMAP pump’s 2–3.5 PSI.
Skip it if you need a 2–3.5 PSI range for a carburetor; the DTMAP 12V Universal Electric Fuel Pump lists that narrower output.
This suits owners transferring gasoline or diesel to a mower or small engine who can use its 12V, 3–6 PSI specification. Check the stated hole spacing and tubing interface against the installation location and fuel line.
Full product details
| Brand | Clatoon |
|---|---|
| Body Material | Metal |
| Compatible with Vehicle Type | Car |
| Inlet Connection Size | 0.32 inches |
| Item Weight | 10.56 ounces |
| Manufacturer | Clatoon |
| Part Number | EFP1 |
| Material | Metal |
| Operation Mode | Manual |
| Outlet Connection Size | 0.32 inches |
| Product Style | pump |
Listed on Amazon as: Clatoon Universal Electric Fuel transfer Pump 12V, Low Pressure 3-6 PSI
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#3 · Best Check Valve
3. LOCOPOW 12V Pump
- Material: Aluminum, Brass
- Compatible with Vehicle Type: Cars,Lawn Mower,Trucks
- Weight: 0.32 kg
- Operation Mode: 12v
Best for: Low-Noise Rotary-Vane Option.
Why it ranks #3: Its 2.5–4 PSI range suits low-pressure applications, and the listing describes a check valve intended to reduce backflow and noise.
An upgraded check valve is intended to reduce pump noise while regulating flow, giving the LOCOPOW inline pump a practical focus for mower owners. Its 2.5–4 PSI output and 12V operation specify a low-pressure setup, with listed compatibility that includes lawn mowers, boats, and generators.
The check valve is described as providing a suitable flow rate and reducing noise, while the precisely matched commutator and brush materials are presented as supporting consistent performance and extended life. Its 2.5–4 PSI pressure and 12V, 1.2A electrical details help establish operating requirements for a low-pressure installation. The rotary-vane style and 8 mm inlet and outlet connections provide further details for evaluating pump type and fuel-line routing.
- Check valve is described as reducing pump noise.
- Output pressure is specified at 2.5–4 PSI.
- 12V operation and 1.2A current are listed.
- Rotary-vane style with 8 mm inlet and outlet connections.
- The listing specifies 8 mm connections, which may not match fuel lines sized differently.
Skip it if you need a 3–6 PSI pump and stated mounting-hole spacing; the Clatoon Universal Electric Fuel Transfer Pump lists both.
Pick this for a 12V mower installation where the stated 2.5–4 PSI range, rotary-vane design, and noise-reducing check valve fit the plan. Its 8 mm connections are a key line-routing consideration.
Full product details
| Brand | LOCOPOW |
|---|---|
| Body Material | Brass |
| Compatible with Vehicle Type | Cars,Lawn Mower,Trucks |
| Inlet Connection Size | 8 millimeters |
| Item Weight | 0.32 kg |
| Manufacturer | LOCOPOW |
| Part Number | GF016 |
| Material | Aluminum, Brass |
| Model Number | GF016 |
| Operation Mode | 12v |
| Outlet Connection Size | 8 millimeters |
| Product Style | Rotary Vane |
Listed on Amazon as: 12V General Purpose Electric Fuel Pump, Low Pressure 2.5-4 PSI Inline, Gasoline Diesel Engine Gasoline Transfer Fuel Pump for Carburetor Lawn Mower Boat Carter HEP-02A
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#4 · Longest Warranty
4. YONEDA HEP02A Pump
- Material: Brass
- Compatible with Vehicle Type: Car
- Operation Mode: Automatic
Best for: Brass Backflow-Prevention Pump.
Why it ranks #4: The listing names lawnmowers and gives a 2.5–4 PSI range, 8 mm inlet and outlet connections, and a two-year guarantee.
Internal valving to prevent backflow is the YONEDA pump’s central practical feature, helping maintain a more stable fuel feed in a compatible 12V mower setup. Its 2.5–4 PSI output and 8 mm inlet and outlet dimensions specify the low-pressure range and line connections.
The internal valve is described as preventing backflow, while strong suction is presented as supporting stable fuel feeding. These features pair with a 2.5–4 PSI output for low-pressure applications, making the pump relevant to carbureted lawn mower systems. Its 8 mm inlet and outlet dimensions provide a defined hose connection size, and the brass body identifies the listed construction material for buyers comparing installation options.
- Internal valving is specified to prevent backflow.
- 2.5–4 PSI output suits low-pressure applications.
- 8 mm inlet and outlet dimensions are listed.
- Brass body is specified.
- The listing gives no flow-rate figure.
Skip it if you need a stated 30 GPH flow rate; the Nrkiscy HEP-02A inline pump lists that capacity.
This suits a 12V mower owner seeking a brass-bodied pump with backflow prevention and a defined 8 mm connection size. Its listing does not provide a flow rate, so pressure and hose fit remain key selection points.
Full product details
| Brand | YONEDA |
|---|---|
| Body Material | Brass |
| Compatible with Vehicle Type | Car |
| Inlet Connection Size | 8 millimeters |
| Manufacturer | YONEDA |
| Part Number | YD-HEP02A |
| Manufacturer Warranty Description | 2-Years of Warranty |
| Material | Brass |
| Model Number | 5824074247 |
| Operation Mode | Automatic |
| Outlet Connection Size | 8 millimeters |
| Product Style | HEP02A |
| Style | HEP02A |
Listed on Amazon as: Electric Fuel Pump, 12V Low Pressure Inline Universal Fuel Pump
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#5
5. SOLLON HEP-02A Pump
- Material: Brass
- Compatible with Vehicle Type: Lawn Mower
- Weight: 0.31 kg
- Operation Mode: Electric
Best for: Check-Valve Carburetor Setup.
Why it ranks #5: Specifically lists lawn mowers and carburetors, with 2.5–4 PSI, 30 GPH, an 8 mm hose size, and a built-in check valve.
A built-in check valve helps prevent fuel backflow, giving the SOLLON 12V inline pump a useful feature for lawn mower and other carbureted fuel systems. Its 2.5–4 PSI output and 30 GPH flow specify a low-pressure transfer profile for gasoline or diesel applications.
The 2.5–4 PSI range is suited to low-pressure fuel systems, while the listed 30 GPH flow provides a defined transfer capacity for a mower or generator setup. A built-in check valve is intended to prevent backflow, helping keep fuel from moving backward through the line when the pump is not supplying it. The specified 8 mm (5/16-inch) hose size gives a concrete connection dimension to check when planning inline installation.
- Built-in check valve is specified to prevent backflow.
- Low-pressure output is rated at 2.5–4 PSI.
- Flow rate is listed as 30 GPH.
- 8 mm (5/16-inch) hose size is stated for line planning.
- The 30 GPH listed flow is lower than the JDMSPEED pump’s stated flow above 70 L/h.
Skip it if you need a stated flow above 70 L/h; the JDMSPEED Universal Electric Fuel Pump Kit lists that higher throughput.
Choose this for a 12V mower or carbureted engine setup needing a check valve and 2.5–4 PSI output. Verify the 8 mm hose dimension and available mounting space before arranging the inline installation.
Full product details
| Brand | SOLLON |
|---|---|
| Body Material | Brass |
| Compatible with Vehicle Type | Lawn Mower |
| Inlet Connection Size | 0.32 inches |
| Item Dimensions | 5.24 x 3.9 x 2.91 inches |
| Item Weight | 0.31 kg |
| Dimensions | 5.24 x 3.9 x 2.91 inches |
| Manufacturer | SOLLON |
| Part Number | 06SL01HEP |
| Material | Brass |
| Model Number | 06SL01HEP |
| Operation Mode | Electric |
| Outlet Connection Size | 0.35 inches |
| Product Style | 12V Universal Gold Electric Fuel Pump |
Listed on Amazon as: Electric Fuel Pump 12V Universal Low Pressure 12 Volt Transfer Inline Fuel Pump for Lawn Mower Carburetor Gas Diesel Engine 2.5-4psi HEP-02A
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#6
6. Nrkiscy HEP-02A Pump
- Material: Plastic
- Compatible with Vehicle Type: Truck, ATV, Marine, Motor, UTV, Car, Boat…
- Operation Mode: Automatic
Best for: Standard-Hose Inline Fit.
Why it ranks #6: The application list includes lawn mowers, and the pump specifies 2.5–4 PSI, 30 GPH, and 8 mm hose connections.
An 8 mm (5/16-inch) hose specification gives the Nrkiscy inline pump a clear connection dimension for standard-sized fuel-line planning. Its 2.5–4 PSI output and 30 GPH flow describe a low-pressure 12V transfer option listed for lawn mowers and several other equipment types.
The 2.5–4 PSI output and 30 GPH flow define its stated low-pressure delivery, while the listing identifies use with lawn mowers, generators, boats, trucks, and other equipment. An 8 mm (5/16-inch) hose size supports straightforward fuel-line planning when the existing line matches. Its piston style and automatic operation provide additional design and operating details, and the plastic body is a material consideration when choosing an installation location.
- 2.5–4 PSI output is specified for low-pressure systems.
- Rated flow is 30 GPH.
- 8 mm (5/16-inch) hose size is stated.
- Listed for lawn mowers, generators, boats, and other equipment.
- Its plastic body may not suit buyers specifically seeking a metal-bodied pump.
Skip it if you want a brass-bodied pump with 8 mm connections; the YONEDA Electric Fuel Pump lists both features.
This is a reasonable fit for a mower owner who needs a 12V inline pump with 2.5–4 PSI output and a stated 8 mm hose size. Account for its plastic body when choosing the mounting position.
Full product details
| Brand | Nrkiscy |
|---|---|
| Body Material | Plastic |
| Compatible with Vehicle Type | Truck, ATV, Marine, Motor, UTV, Car, Boat, Generator, Lawn Mower |
| Included Components | Inline Fuel Pump |
| Inlet Connection Size | 0.31 inches |
| Item Dimensions | 5.1 x 3.8 x 2.8 inches |
| Dimensions | 5.1 x 3.8 x 2.8 inches |
| Manufacturer | Nrkiscy |
| Part Number | HEP-02A |
| Manufacturer Warranty Description | 1 Year Manufacturer |
| Material | Plastic |
| Model Number | HEP-02A |
| Operation Mode | Automatic |
| Outlet Connection Size | 0.31 inches |
| Product Style | Piston |
Listed on Amazon as: HEP-02A 12V Low Pressure Inline Electric Fuel Pump for Lawn Mower
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#7
7. DTMAP 2–3.5 PSI Pump
- Material: Brass, Iron, Plastic
- Compatible with Vehicle Type: Car
- Weight: 0.47 kg
- Operation Mode: Automatic
Best for: Precision Low-Pressure Carburetor.
Why it ranks #7: Its 2–3.5 PSI output and 28 GPH flow target 12V carbureted engines, but the listing does not specifically identify lawn mowers.
A narrowly specified 2–3.5 PSI output is the DTMAP pump’s defining feature, helping keep fuel pressure gentle for carbureted engines. Its listing also identifies a 28 GPH flow and 12V DC operation, with use expressly limited to 12V carbureted engines and diesel lift or transfer applications.
The 2–3.5 PSI output is specifically presented as low pressure to avoid overwhelming float needle valves or causing carburetor flooding, making the pressure range central to choosing it for a mower. A 28 GPH flow and 1–2A operating current describe its stated delivery and electrical draw. The 12V specification and explicit carbureted-engine limitation help narrow compatibility; it is not intended for high-pressure electric fuel systems.
- 2–3.5 PSI output is specified for low-pressure systems.
- Listing addresses float needle valves and carburetor flooding.
- Flow is rated at 28 GPH (106 LPH).
- Operating current is listed as 1–2A.
- The listing excludes high-pressure electric fuel systems.
Skip it if you need a pump rated above 3.5 PSI; the ENGINEMAN Electric Fuel Pump specifies a 3–6 PSI range for low-pressure transfer.
This fits a mower owner who prioritizes a tightly stated low-pressure range for a 12V carbureted engine. Its stated scope excludes high-pressure electric systems, so match the pump’s pressure and application limits to the engine.
Full product details
| Brand | DTMAP |
|---|---|
| Body Material | Plastic |
| Compatible with Vehicle Type | Car |
| Included Components | Electric Fuel Pump |
| Inlet Connection Size | 9.53 millimeters |
| Item Weight | 0.47 kg |
| Manufacturer | DTMAP |
| Part Number | DTMAP-142-0257PUMP |
| Manufacturer Warranty Description | 1 Year/30,000 kilometres |
| Material | Brass, Iron, Plastic |
| Model Number | 2-3.5 PSI 28GPH for Gasoline & Diesel |
| Operation Mode | Automatic |
| Outlet Connection Size | 0.38 inches |
| Product Style | 12V Universal Electric Fuel Pump 2-3.5 PSI, 28 GPH 106 LPH 1-2A |
Listed on Amazon as: 12V Universal Electric Fuel Pump 2-3.5 PSI, 28 GPH 106 LPH 1-2A
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#8
8. ENGINEMAN HEP-02A Pump
- Material: Cast Iron, Copper
- Compatible with Vehicle Type: ATV, Car, Motorcycle, Truck
- Operation Mode: Electric
Best for: Gasoline-Diesel Transfer Range.
Why it ranks #8: The listing explicitly includes lawn mowers and carburetors, but its supplied details do not specify a flow rate or connection size.
A 3–6 PSI low-pressure range makes the ENGINEMAN pump a potential match for transfer jobs across listed 12V equipment, including lawn mowers and generators. Its stated gasoline and diesel compatibility broadens fuel choice, while the listing explicitly excludes alcohol-based fuels such as E85.
The 12V specification and 3–6 PSI output identify the operating range for low-pressure fuel transfer, and the listed compatibility spans mowers, small engines, boats, and generators. Gasoline and diesel support is useful for owners servicing different equipment, but the stated exclusion of alcohol-based fuels such as E85 is an important boundary. Its product style is gerotor, and the supplied specifications list cast iron and copper materials and included housing.
- 3–6 PSI output is specified for low-pressure transfer.
- Listed for 12V lawn mowers, small engines, boats, and generators.
- Compatible with gasoline and diesel.
- The listing identifies a gerotor product style.
- It is explicitly unsuitable for alcohol-based fuels such as E85.
Skip it if you use E85 or another alcohol-based fuel; the YONEDA Electric Fuel Pump listing does not state the same fuel exclusion.
Consider this for a 12V mower or small-engine owner using gasoline or diesel and needing a 3–6 PSI transfer pump. Do not select it for E85; confirm that the pressure range suits the carbureted setup.
Full product details
| Brand | ENGINEMAN |
|---|---|
| Body Material | Copper |
| Compatible with Vehicle Type | ATV, Car, Motorcycle, Truck |
| Included Components | Comes with housing |
| Item Dimensions | 7 x 4.3 x 3.5 inches |
| Dimensions | 7 x 4.3 x 3.5 inches |
| Manufacturer | ENGINEMAN |
| Part Number | HEP-02A |
| Manufacturer Warranty Description | 1 Year Manufacturer |
| Material | Cast Iron, Copper |
| Model Number | 106052 |
| Operation Mode | Electric |
| Product Style | Gerotor |
Listed on Amazon as: Electric Fuel Pump 12V Electric Transfer for Universal Low Pressure Gas Diesel Fuel Pump 3-6psi HEP-02A For Lawn Mower Carburetor Cars Trucks Boats
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#9
9. CarBole 2–3.5 PSI Pump
- Material: Cast Iron, Rubber
- Compatible with Vehicle Type: Car
- Weight: 460 g
- Operation Mode: Electric
Best for: Low-Pressure Bolt-Mount Setup.
Why it ranks #9: Its 2–3.5 PSI output and 28 GPH flow may suit a low-pressure carbureted setup, but the listing does not name lawn mowers.
A 2–3.5 PSI operating range makes this CarBole pump a low-pressure option for compatible carbureted equipment, with 28 GPH flow specified for fuel transfer. Its 12V supply, 1–2A current, and two-bolt fitting give buyers useful electrical and mounting details.
The low 2–3.5 PSI pressure and 28 GPH flow define its stated transfer capability, while stronger suction is described as helping stabilize fuel feeding. The 12V, 1–2A electrical specification helps establish power requirements, and the two-bolt fitting supports mounting planning. Both inlet and outlet are listed at 5/16 inch, and the pump is specified for gasoline, with E85, ethanol, and methanol not recommended.
- Low-pressure output is specified at 2–3.5 PSI.
- Flow rate is listed as 28 GPH.
- Both fuel connections are 5/16 inch.
- 12V operation, 1–2A current, and a two-bolt fitting are stated.
- E85, ethanol, and methanol are not recommended.
Skip it if you need a 3–6 PSI range for gasoline or diesel transfer; the ENGINEMAN Electric Fuel Pump lists that output range.
This fits a mower owner seeking a 12V low-pressure gasoline pump with 5/16-inch connections and a two-bolt fitting. Its 2–3.5 PSI range and fuel restrictions should guide compatibility checks before installation.
Full product details
| Brand | CarBole |
|---|---|
| Body Material | Rubber, Cast Iron |
| Compatible with Vehicle Type | Car |
| Inlet Connection Size | 0.31 inches |
| Item Weight | 460 g |
| Manufacturer | CarBole |
| Part Number | CB-10103011 |
| Material | Cast Iron, Rubber |
| Model Number | 10103007 |
| Operation Mode | Electric |
| Outlet Connection Size | 0.31 inches |
| Product Style | Electric |
| Additional Information | Important information |
Listed on Amazon as: CarBole Gasoline Electric Fuel Pump Universal 5/16 Inch Inlet and Outlet Inline 12V 1-2A 28GPH 2-3.5P.S.I. Operating Fuel Pressure
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#10
10. CarBole 5–9 PSI Pump
- Material: Cast Iron, Rubber
- Compatible with Vehicle Type: Car, Truck
- Operation Mode: Electric
Best for: Higher-Pressure Transfer Use.
Why it ranks #10: Although it is a universal 12V pump, its 5–9 PSI range is higher than the other listed low-pressure options and needs careful carburetor compatibility checks.
A 5–9 PSI output sets the CarBole Micro Electric Fuel Pump apart from lower-pressure mower options, making pressure matching especially important. It is listed for gasoline and diesel, with a 30 GPH flow and 12V operation for automotive and industrial applications.
The 5–9 PSI rating and 30 GPH flow specify the pump’s delivery profile, so buyers should compare the pressure carefully with the mower’s carburetor requirements. The listing covers gasoline and diesel but explicitly excludes alcohol-based fuels, and it directs users to install a filter. Cast iron and rubber are listed materials, while the specified 0.25-inch inlet and 16-inch outlet connection sizes make careful hose planning essential.
- Rated at 30 GPH.
- 12V operation is specified.
- Listed for gasoline and diesel without alcohol.
- Listing instructs use with a filter.
- Its 5–9 PSI output may be too high for mower carburetors requiring 2.5–4 PSI.
Skip it if you need 2.5–4 PSI for a mower carburetor; the LOCOPOW 12V General Purpose Electric Fuel Pump lists that range.
Consider this only when a mower or other application can use its 5–9 PSI output and gasoline or diesel fuel. The listing calls for a filter, and its inlet and outlet dimensions merit careful line planning.
Full product details
| Brand | CarBole |
|---|---|
| Body Material | White zinc |
| Compatible with Vehicle Type | Car, Truck |
| Inlet Connection Size | 0.25 inches |
| Item Dimensions | 6.3 x 4.33 x 2.76 inches |
| Dimensions | 6.3 x 4.33 x 2.76 inches |
| Manufacturer | CarBole |
| Part Number | CB-1010311X |
| Material | Cast Iron, Rubber |
| Operation Mode | Electric |
| Outlet Connection Size | 16 inches |
| Product Style | Piston |
Listed on Amazon as: CarBole Universal Micro Electric Fuel Pump 12V 5-9 PSI 30 GPH 5/16 Inch
View on AmazonAvoiding a pressure and connection mismatch
A pump can fit the fuel line and still deliver pressure unsuitable for the mower’s carburetor. These listings range from 2–3.5 PSI on the DTMAP and CarBole 2–3.5 PSI Pump to 5–9 PSI on the CarBole 5–9 PSI Pump; JDMSPEED Universal Pump and Clatoon Transfer Pump list 3–6 PSI. Use the mower or carburetor requirements—not the broad word universal—to narrow the range.
Connection dimensions are another trap: several pumps list 8 mm or 5/16-inch hose connections, while JDMSPEED Universal Pump specifies a 0.315-inch tubing interface. Check the actual line and fittings rather than assuming these labels mean the pump connects directly.
A mismatch can require different fittings, while excessive pressure may overwhelm a carburetor’s float needle and contribute to flooding, as the DTMAP listing cautions.
What the listed flow figures can—and cannot—tell you
Flow figures help compare listings, but they do not alone establish that a pump is right for a particular mower. Clatoon Transfer Pump and SOLLON HEP-02A Pump list 30 GPH, while DTMAP 2–3.5 PSI Pump and CarBole 2–3.5 PSI Pump list 28 GPH; JDMSPEED Universal Pump lists more than 70 L/H. The units and stated pressure ranges differ, so avoid treating those numbers as a controlled, like-for-like performance test.
A higher flow figure is not automatically better for a small carbureted engine if the pressure does not match its requirements. The practical trade-off is to prioritize the engine’s specified pressure, then use flow as a secondary comparison when the units and operating conditions are clear.
Confirm fuel type as well: some listings exclude alcohol-based fuels or advise against E85, ethanol, or methanol.
How to Choose a Lawn Mower Fuel Pump
Pressure range
Look for a listed pressure range that matches the mower’s carburetor requirements. The products span 2–3.5 PSI, 2.5–4 PSI, 3–6 PSI, and 5–9 PSI. JDMSPEED Universal Pump and Clatoon Transfer Pump offer 3–6 PSI; SOLLON HEP-02A Pump and YONEDA HEP02A Pump list 2.5–4 PSI.
The 5–9 PSI CarBole 5–9 PSI Pump stands apart at the higher end, so it is only a sensible candidate when the engine setup supports that pressure. Buyers who do not know the required pressure should check the mower or carburetor specifications before choosing, rather than selecting by flow or universal-fit language.
Flow rate
Compare flow figures after confirming pressure compatibility, and note the units used by each listing. Clatoon Transfer Pump and SOLLON HEP-02A Pump specify 30 GPH; DTMAP 2–3.5 PSI Pump and CarBole 2–3.5 PSI Pump specify 28 GPH; JDMSPEED Universal Pump lists more than 70 L/H. Because the figures are not all expressed in the same units or under stated identical conditions, they should not be treated as a direct test ranking.
A buyer replacing a pump with known flow needs can use the closest matching listing figure; a buyer without that information should prioritize the mower’s pressure and fit requirements first.
Hose connections and included wiring
Check the pump’s connection dimensions against the mower’s existing fuel line and inspect what the package includes. SOLLON HEP-02A Pump and Nrkiscy HEP-02A Pump specify an 8 mm or 5/16-inch hose size, while Clatoon Transfer Pump lists 0.32-inch inlet and outlet connections. JDMSPEED Universal Pump specifies a 0.315-inch tubing interface and includes a socket wire.
These sizes are close but should not be assumed interchangeable without checking the actual hose and fittings. The included wire may be useful to a buyer replacing a similar 12V pump, while buyers whose mower uses a different connector or line size should verify what additional compatible parts are required before installation.
Which Fuel Pump Should I Choose for My Mower?
For a broadly compatible listed option with included wiring, choose JDMSPEED Universal Pump: it is identified for lawnmowers, lists 3–6 PSI and over 70 L/H, and includes a socket wire. If your mower calls for a 3–6 PSI pump and 30 GPH is the relevant flow figure, Clatoon Transfer Pump is a strong alternative with 0.32-inch connections. For a 2.5–4 PSI requirement, consider LOCOPOW 12V Pump, SOLLON HEP-02A Pump, or YONEDA HEP02A Pump; the latter two specify 30 GPH, and YONEDA lists a two-year guarantee.
Choose based on your engine’s pressure and connection requirements, not just the broad compatibility language. If those requirements are unknown, check the mower documentation or existing pump before ordering.
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Frequently Asked Questions
How can I tell whether my mower needs an electric fuel pump or has a fuel-delivery problem elsewhere?
Start by checking the mower manual and identifying its existing fuel-delivery setup; some mowers may not call for an electric pump. Inspect the fuel line, filter, tank outlet, and connections for blockages, leaks, or damage. If the cause remains unclear, have a qualified technician diagnose it before replacing parts.
How should I check whether a pump’s pressure is suitable for my mower’s carburetor?
Check the mower manual or existing pump for the carburetor’s required pressure, then compare it with the pump’s listed range. For example, the JDMSPEED pump lists 3–6 PSI, while several options list 2.5–4 PSI. Do not assume a pump is suitable based only on general compatibility wording.
What safety steps should I take when installing an electric fuel pump on a lawn mower?
Work with the engine off and cool, disconnect the battery, and keep sparks, flames, and smoking away from fuel. Use a ventilated work area, contain spills, and follow the mower and pump instructions for wiring and fuel-line connections. Check carefully for leaks before starting the engine.
How do I compare a pump’s flow rating and fuel-line connections?
First confirm the flow figure and connection size against your mower’s requirements and fuel line. The listed options include different flow ratings and interfaces; the JDMSPEED listing specifies a 0.315-inch tubing interface, while the Clatoon listing specifies 0.32-inch connections. Do not treat similar measurements as a guaranteed fit.
Is a pump listed for lawn mowers automatically compatible with my mower?
No. A lawn-mower listing is a useful starting point, not a fit guarantee. Confirm the required pressure, flow, voltage, and fuel-line connection using your mower documentation or existing pump.
For instance, JDMSPEED is listed for lawnmowers and 12V equipment, but its 3–6 PSI range and tubing interface still need to match.
Final Words
Choose the pump by matching your mower’s required pressure and fuel-line connection, not by relying on broad compatibility wording. JDMSPEED is the leading listed choice for lawnmowers, with 3–6 PSI, flow above 70 L/H, and an included socket wire, provided its interface fits. Consider Clatoon for a 3–6 PSI need, or the listed 2.5–4 PSI options for that requirement.
If specifications are unclear, check the mower documentation or existing pump before ordering.

