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Solar Fans and Pumps

Best 12v Water Pump Kit for Boat (2026): 5 Kits Compared

Five 12v water pump kits for boats compared on flow, pressure, kit contents, protection and warranty, with washdown and bilge kits side by side.

Best 12v Water Pump Kit for Boat (2026): 5 Kits Compared
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A dirty deck after a day on the water and a bilge that needs emptying are different jobs, and the best 12v water pump kit for boat matches the job: a washdown kit for cleaning, or a bilge kit for removing water.

This article compares five kits from the listings: two washdown kits, two bilge kits and one title-only kit, on flow, pressure, kit contents, protection and warranty. The SEAFLO kit leads on warranty and kit completeness, while the OBALOGI kit leads on flow and pressure.

SolarKitHQ earns a commission when you buy through links on this page, at no extra cost to you. As an Amazon Associate I earn from qualifying purchases. Affiliate disclosure.

Quick picks

The picks

SEAFLO Washdown Kit

SEAFLO Washdown Kit

SEAFLO9.7/10 Solar Score
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The Solar Score runs from 9.2 to 9.8 and weighs performance (35%), build (25%), value (25%), safety (10%, where it applies) and warranty (5%), using only what the manufacturer and the listing publish. How we pick ›

A 12V washdown kit with 3.0 GPM at 70 PSI, a 25-foot coiled hose, trigger nozzle and a 4-year warranty.

Pros

  • 3.0 GPM open flow at 70 PSI shut-off pressure
  • Self-priming up to 6 feet of suction lift
  • Complete kit: 25-foot hose, nozzle, strainer and fittings
  • 4-year warranty stated

Cons

  • 18.0 A max draw needs a 12V supply that can carry it
  • Lower flow than the 7.5 GPM OBALOGI kit
  • No adjustable pressure switch is stated
  • Spec table Material Type says Stainless Steel against EPDM, Santoprene and ABS in the bullets
Detailed Review

The listing states a 12V DC washdown pump with 3.0 GPM open flow at 70 PSI shut-off pressure, self-priming up to 6 feet, an 18.0 A max draw and 1/2 inch MNPT inlet and outlet size. It includes a 25-foot UV-protected coiled hose, trigger spray nozzle, quick-connect fittings, a 50 mesh inlet strainer and two 1/2 inch barbed fittings. It states thermal overload protection that stops the motor on overheating and restarts it once cooled, plus rubber mounting feet. The bullets state EPDM valves, a Santoprene diaphragm and ABS engineering plastics, while the spec table lists Material Type as Stainless Steel, so the bullets figures are used here. The listing states a 4-year warranty.

Who it is for: boat and RV owners who want a complete washdown kit with a stated warranty term. Who should skip it: buyers who need the highest flow here, or a 12V supply below 18.0 A draw.

Its Solar Score of 9.7/10 comes from performance 33/35, build 24/25, value 22/25, safety 0/10 and warranty 3/5: 82 of 100 points, placed on our 9.2 to 9.8 scale.

Key Specifications
Flow3.0 GPM
Pressure70 PSI
Lift6 feet
Weight5.7 pounds

Figures as published on the retailer listing, collected 25 October 2026. Performance figures are manufacturer rated.

Safety and Warranty

What this listing states. No weather rating or protection feature is stated, so safety scores zero. 4-year warranty. It does not say everything a buyer needs, such as who pays return shipping, so warranty scores 3 of 5. See How We Pick.

Fans and pumps. Keep fingers and cords away from moving blades and intakes, run pumps only submerged as the maker directs, and treat airflow and flow rates as the maker's figures.

This is general buying information, not professional advice. Follow each product manual and local rules, and see our Safety Disclaimer.

OBALOGI Washdown Kit

OBALOGI Washdown Kit

OBALOGI9.6/10 Solar Score
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The Solar Score runs from 9.2 to 9.8 and weighs performance (35%), build (25%), value (25%), safety (10%, where it applies) and warranty (5%), using only what the manufacturer and the listing publish. How we pick ›

A 12V washdown kit with 7.5 GPM at 80 PSI, a 25-foot hose, trigger nozzle and thermal protection.

Pros

  • Highest washdown flow here at 7.5 GPM and 80 PSI
  • 5-chamber diaphragm design with dual-bearing motor
  • Thermal overload protection with automatic restart
  • Complete kit: 25-foot hose, nozzle, connectors and filter

Cons

  • No warranty term is stated
  • Designed for intermittent use only
  • Thermal protection may trigger sooner in high-temperature environments
  • No stated draw figure for sizing the 12V supply
Detailed Review

The listing states a 12V pump with 7.5 GPM flow and 80 PSI pressure, 6 feet of vertical suction lift and 80 PSI shut-off pressure. It includes a 25-foot UV-resistant hose, quick-connect trigger nozzle, 1/2 inch NPT connectors and a seawater filter. It states an adjustable pressure switch, a 5-chamber diaphragm design, a dual-bearing motor, an ABS-engineered plastic body and a sealed pressure switch. It states thermal overload protection that restarts once safe temperatures are restored, plus an automatic shutdown when the body temperature exceeds 52 degrees Celsius, with a restart once cooled. No warranty term is stated.

Who it is for: buyers who want the highest washdown flow and pressure here with a full hose kit. Who should skip it: buyers who need continuous running, or a stated warranty term.

Its Solar Score of 9.6/10 comes from performance 35/35, build 22/25, value 21/25, safety 0/10 and warranty 0/5: 78 of 100 points, placed on our 9.2 to 9.8 scale.

Key Specifications
Flow7.5 GPM
Pressure80 PSI
Lift6 feet
Weight4.12 kg

Figures as published on the retailer listing, collected 25 October 2026. Performance figures are manufacturer rated.

Safety and Warranty

What this listing states. No weather rating or protection feature is stated, so safety scores zero. No warranty term, so warranty scores zero. See How We Pick.

Fans and pumps. Keep fingers and cords away from moving blades and intakes, run pumps only submerged as the maker directs, and treat airflow and flow rates as the maker's figures.

This is general buying information, not professional advice. Follow each product manual and local rules, and see our Safety Disclaimer.

Subtoy Automatic Bilge Kit

Subtoy Automatic Bilge Kit

Subtoy9.4/10 Solar Score
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The Solar Score runs from 9.2 to 9.8 and weighs performance (35%), build (25%), value (25%), safety (10%, where it applies) and warranty (5%), using only what the manufacturer and the listing publish. How we pick ›

A 12V automatic bilge kit with 1100 GPH, a float switch, 6-foot hose and thru-hull fitting.

Pros

  • Float switch turns the pump on and off by water level
  • 1100 GPH for fast bilge water removal
  • Complete kit: 6-foot hose, 2 clamps and thru-hull fitting
  • Compact size fits tight bilge spaces

Cons

  • Only fits 1-1/8 inch discharge hose setups, too large for 3/4 inch systems
  • Not a direct replacement for 750 GPH systems
  • No warranty term is stated
  • Bilge removal only, no spray nozzle for washdown use
Detailed Review

The listing states a 12V automatic bilge pump with 1100 GPH output, a built-in float switch, a 6-foot marine-grade thick-wall PVC hose with kink and saltwater resistance, and a durable thru-hull fitting. It states ABS material, a submersible sealed housing for saltwater and freshwater use, and dimensions of 5.9 by 3.2 by 4.1 inches. It is battery powered and fits 1100 GPH systems, with 1-1/8 inch outlets only. No warranty term is stated.

Who it is for: owners replacing a 1100 GPH bilge pump who want automatic water-level control. Who should skip it: owners on 750 GPH systems or 3/4 inch hose setups, or buyers who need a washdown kit.

Its Solar Score of 9.4/10 comes from performance 28/35, build 21/25, value 20/25, safety 0/10 and warranty 0/5: 69 of 100 points, placed on our 9.2 to 9.8 scale.

Key Specifications
Flow1100 GPH
Outlet1-1/8 inch
Hose6 feet
Dimensions5.9 x 3.2 x 4.1 inches

Figures as published on the retailer listing, collected 25 October 2026. Performance figures are manufacturer rated.

Safety and Warranty

What this listing states. No weather rating or protection feature is stated, so safety scores zero. No warranty term, so warranty scores zero. See How We Pick.

Fans and pumps. Keep fingers and cords away from moving blades and intakes, run pumps only submerged as the maker directs, and treat airflow and flow rates as the maker's figures.

This is general buying information, not professional advice. Follow each product manual and local rules, and see our Safety Disclaimer.

JINYUNDZ Bilge Kit

JINYUNDZ Bilge Kit

JINYUNDZ9.4/10 Solar Score
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The Solar Score runs from 9.2 to 9.8 and weighs performance (35%), build (25%), value (25%), safety (10%, where it applies) and warranty (5%), using only what the manufacturer and the listing publish. How we pick ›

A 12V non-automatic bilge kit with 1100 GPH, a 6.5-foot hose, clamps and thru-hull fitting.

Pros

  • Complete kit: 6.5-foot hose, 2 clamps and thru-hull fitting
  • Snap-lock filter base removes for easy cleaning
  • Sealed housing resists oil and corrosion
  • Low vibration with 1.1 pound weight

Cons

  • Non-automatic: no float switch is stated
  • Spec table lists flow as 1100 gpm against 1100 GPH in the title and bullets
  • No warranty term is stated
  • No pressure figure is stated for washdown use
Detailed Review

The listing states a 12V non-automatic submersible bilge pump at 1100 GPH, with a 6.5-foot drain hose, 2 stainless steel clamps and a corrosion-resistant thru-hull fitting. It states a moisture-proof sealed housing, a snap-lock filter base that removes for cleaning, low vibration, ABS and stainless steel materials, dimensions of 3.5 by 3.5 by 4.3 inches and a weight of 1.1 pounds. The spec table lists flow as 1100 gpm, while the title and bullets state 1100 GPH, so the title figure is used here. No warranty term is stated.

Who it is for: owners who want a complete bilge kit and control the pump themselves. Who should skip it: owners who want automatic water-level control, or a stated warranty term.

Its Solar Score of 9.4/10 comes from performance 27/35, build 20/25, value 20/25, safety 0/10 and warranty 0/5: 67 of 100 points, placed on our 9.2 to 9.8 scale.

Key Specifications
Flow1100 GPH
Hose6.5 feet
Weight1.1 pounds
Dimensions3.5 x 3.5 x 4.3 inches

Figures as published on the retailer listing, collected 25 October 2026. Performance figures are manufacturer rated.

Safety and Warranty

What this listing states. No weather rating or protection feature is stated, so safety scores zero. No warranty term, so warranty scores zero. See How We Pick.

Fans and pumps. Keep fingers and cords away from moving blades and intakes, run pumps only submerged as the maker directs, and treat airflow and flow rates as the maker's figures.

This is general buying information, not professional advice. Follow each product manual and local rules, and see our Safety Disclaimer.

CAMPLUX Pump Kit

CAMPLUX Pump Kit

CAMPLUX ENJOY OUTDOOR LIFE9.3/10 Solar Score
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The Solar Score runs from 9.2 to 9.8 and weighs performance (35%), build (25%), value (25%), safety (10%, where it applies) and warranty (5%), using only what the manufacturer and the listing publish. How we pick ›

A 12V water pump kit, 1.6 GPM, 65 PSI, for campers and showers.

Pros

  • 65 PSI high pressure
  • Automatic pressure switch
  • 12V car or battery power
  • Suits CAMPLUX heaters

Cons

  • No warranty stated
  • 1.6 GPM is modest
  • Flow capacity 1.2 GPM in spec
  • No certification stated
Detailed Review

The CAMPLUX is the kit pick: a 12V water pump with 65 PSI and an automatic pressure switch, connecting to a portable power station, car supply or 12V battery. It suits the CAMPLUX gas water heaters.

Note the spec table lists 1.2 GPM flow capacity versus 1.6 GPM in the title; use the lower figure. For an off-grid shower with a heater, this is the matched set.

Its Solar Score of 9.3/10 comes from performance 24/35, build 19/25, value 18/25, safety 0/10 and warranty 0/5: 61 of 100 points, placed on our 9.2 to 9.8 scale.

Key Specifications
Flow1.6 GPM (title), 1.2 GPM (spec)
Pressure65 PSI
Power12V DC
SwitchAutomatic pressure

Figures as published on the retailer listing, collected 23 October 2026. Performance figures are manufacturer rated.

Safety and Warranty

What this listing states. No safety listing, protection or rating is stated, so safety scores zero. No warranty term, so warranty scores zero. See How We Pick.

Follow the manual. Connect and use the product as the maker describes, stay within every stated rating, and read the manual before first use.

This is general buying information, not professional advice. Follow each product manual and local rules, and see our Safety Disclaimer.

As an Amazon Associate I earn from qualifying purchases.

More picks to compare

  • GCKAE Washdown KitGCKAE Washdown Kit80 PSI 7.5 GPM washdown kit with 5-chamber pump, CE-certified, and 2 water gunsCheck on Amazon
  • 80 PSI Washdown Kit80 PSI Washdown Kit80 PSI 7.5 GPM self-priming washdown kit with pressure switch and strainerCheck on Amazon

Compare the picks

Pump HQ Score Flow Pressure Kit Warranty Amazon
SEAFLO Washdown Kit 9.7/10 3.0 GPM 70 PSI 25-foot hose, nozzle, strainer 4-year warranty View on Amazon
OBALOGI Washdown Kit 9.6/10 7.5 GPM 80 PSI 25-foot hose, nozzle, filter Not stated View on Amazon
Subtoy Automatic Bilge Kit 9.4/10 1100 GPH Not stated 6-foot hose, clamps, thru-hull Not stated View on Amazon
JINYUNDZ Bilge Kit 9.4/10 1100 GPH Not stated 6.5-foot hose, clamps, thru-hull Not stated View on Amazon
CAMPLUX Water Pump Kit 9.3/10 1.6 GPM 65 PSI Not stated Not stated

Specifications are manufacturer rated as listed, collected 25 October 2026.

How we scored them

The Solar Score weighs performance, build, value, safety and warranty. For a pump kit, safety means thermal overload protection, float-switch protection and pressure-switch control the listing actually states; a kit that states none scores zero on that line. One of the five kits states a warranty term, and only the SEAFLO kit states a 4-year term. How we pick explains the weights.

Product Solar Score Perf. /35 Build /25 Value /25 Safety /10 Warranty /5
SEAFLO Washdown Kit 9.7 33 24 22 0 3
OBALOGI Washdown Kit 9.6 35 22 21 0 0
Subtoy Automatic Bilge Kit 9.4 28 21 20 0 0
JINYUNDZ Bilge Kit 9.4 27 20 20 0 0

Scores run from 9.2 to 9.8: each product’s point total is placed on that range, so more points always means a higher score.

How to choose the best 12v water pump kit for boat

Washdown or bilge first

The job decides the pick. Washdown kits clean decks, anchor chains and leisure decks with a spray nozzle, while bilge kits remove water from the bilge with a submersible pump and a thru-hull fitting. The SEAFLO and OBALOGI kits are washdown kits, and the Subtoy and JINYUNDZ kits are bilge kits. A washdown kit cannot empty a bilge, and a bilge kit has no spray nozzle for cleaning, so pick the job before comparing flow figures.

Flow and pressure in the right units

Washdown kits state flow in GPM and pressure in PSI, while bilge kits state flow in GPH with no pressure figure. The OBALOGI kit states 7.5 GPM at 80 PSI, the SEAFLO kit states 3.0 GPM at 70 PSI, and both bilge kits state 1100 GPH. Do not compare a GPM figure against a GPH figure directly. One listing needs care: the JINYUNDZ spec table lists flow as 1100 gpm, while its title and bullets state 1100 GPH, so the title figure is used here.

Kit contents decide the real cost of the job

A kit that ships complete saves a hardware run. The SEAFLO kit includes a 25-foot coiled hose, trigger spray nozzle, quick-connect fittings, a 50 mesh inlet strainer and two 1/2 inch barbed fittings. The OBALOGI kit includes a 25-foot hose, quick-connect trigger nozzle, 1/2 inch NPT connectors and a seawater filter. The bilge kits include a hose, two clamps and a thru-hull fitting, with a 6.5-foot hose on the JINYUNDZ kit and a 6-foot hose on the Subtoy kit. The CAMPLUX kit states no kit contents, so its hose, nozzle and fitting situation is unknown.

Protection and warranty

Protection states differ across the list. The SEAFLO and OBALOGI kits state thermal overload protection that stops the motor on overheating and restarts it once cooled, and the OBALOGI listing adds an automatic shutdown when the body temperature exceeds 52 degrees Celsius. The Subtoy kit states a float switch that turns the pump on and off by water level, which protects a boat left unattended. The JINYUNDZ kit states that short-term waterless running will not burn the pump. Only the SEAFLO kit states a warranty term, at 4 years.

Check the fittings before you order

Fitting size decides whether a kit connects at all. The washdown kits here use 1/2 inch fittings, while the bilge kits here use 1-1/8 inch outlets. The Subtoy listing warns that its kit only fits 1-1/8 inch discharge hose setups and is too large to fit 3/4 inch systems, and that it is not a direct replacement for 750 GPH systems. Measure the existing hose and the bilge pump system before ordering, since a fitting mismatch means a return.

Sizing Notes

  • Match the hose outlet: bilge kits here use 1-1/8 inch outlets, washdown kits here use 1/2 inch fittings.
  • Size the 12V supply to the pump draw: the SEAFLO listing states 18.0 A max draw.
  • Check suction lift: the SEAFLO and OBALOGI kits state 6 feet of lift.
  • Bilge replacement: the Subtoy kit fits 1100 GPH systems only, not 750 GPH systems.
  • Wiring into a boat electrical system is a job for a qualified marine installer.

Frequently Asked Questions

How do you power a 12v water pump?

All five kits here are 12V kits. The SEAFLO kit runs on 12V DC, the Subtoy kit is battery powered, and the JINYUNDZ and OBALOGI kits list corded electric power. Check the supply against the pump draw: the SEAFLO listing states 18.0 A max draw.

Which kit has the highest flow?

Among washdown kits, the OBALOGI kit at 7.5 GPM. The bilge kits state 1100 GPH, which is a different unit and cannot be compared directly against a GPM figure.

Which kits are bilge kits and which are washdown kits?

The Subtoy and JINYUNDZ kits are bilge kits for removing bilge water. The SEAFLO and OBALOGI kits are washdown kits for cleaning decks and boats. The CAMPLUX kit title states only a water pump kit, with no job type stated.

Which kit states a warranty term?

Only the SEAFLO kit, at 4 years. The other listings state no warranty term.

SEAFLO Washdown Kit
Still deciding? Our top pickSEAFLO Washdown Kit
Check price on Amazon

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