#1 Home Improvement Retailer

Internet # 333269725

Model # 12VYYSB4Q30GNDLZ6V9

12-Volt Diaphragm Pump 3 GPM 4-Chamber Automatic Pressure Switch 40-100 PSI for RV Yacht Food Truck Camper Marine

$39.98
Apply Now
Pay $14.98 after $25 OFF your total qualifying purchase upon opening a new card. 
Apply for a Home Depot Consumer Card
  • Say goodbye to low water pressure
  • Certified by CE and ROHS
  • Standard size, easy replacement
  • View More Details

Free & Easy Returns In Store or Online

Return this item within 7 days of purchase.

Read Return Policy

Ask about this product

Get an answer now with AI

Magic Apron Assistant is an AI virtual assistant. By proceeding, you consent to the recording and use of your information by The Home Depot (and authorized third parties). More information

Product Details

About This Product

12-Volt Potable Water Pump, 3.0 GPM High Flow Rate. This 12-Volt diaphragm pump delivers an impressive 3.0 GPM (11.36 L/min) flow rate and a 55 PSI preset pressure, ensuring efficient and reliable water supply. It features 40 to 100 PSI adjustable pressure, a pure copper motor, and a standard 1/2 in. MNPT port. Elevate your water system today.

Highlights

  • Say goodbye to low water pressure: upgrade to our 4-chamber 12-Volt water pump delivering a high flow rate of 3.0 GPM (11.36 L/min) at a steady 55 PSI it's designed to meet all your daily water needs efficiently and reliably, saving you valuable time
  • Automatic pressure switch: customize your water pressure with an adjustable range from 40 to 100 PSI the on-demand pressure switch automatically starts the pump when you open the faucet and stops it when you close it tested over 200,000 times for durability, it's built to last
  • Ultra-quiet operation: our 12-Volt diaphragm pump features a pure copper motor for smooth and quiet performance the plastic pump body and noise-reducing base effectively minimize sound, so it won't disrupt your work or sleep
  • Security You Can Trust: certified by CE and ROHS this 12-Volt water pump includes overheat and overload protection to extend its lifespan plus, it supports dry running and has a built-in check valve bypass switch to ensure uninterrupted water supply even if the pump or check valve fails
  • Standard size, easy replacement: our 12-Volt diaphragm pump is equipped with standard 1/2 in. MNPT inlet and outlet, replacing your existing pump is a breeze ideal for use in RVs, boats, campers, food trucks, and more, it brings convenience to your lifestyle
  • Specifications: item model number: NMDP42-G30-55-12, voltage: DC 12 V, power: 90W, max pressure: 55 PSI, max flow rate: 3.0 GPM / 11.36 L/min, inlet/outlet diameter: 1/2 in. MNPT (O.D. 20.955 mm), net weight: 4.41 lbs. / 2.0 kg, product dimensions: 8.27 x 5.04 x 4.33 in. / 210 x 128 x 110 mm
  • Package content: 1 x 12-Volt water pump, 1 x filter, 1 x user manual
  • Click here for more information on Electronic Recycling Programs
  • Return Policy

Product Information

Internet # 333269725

Model # 12VYYSB4Q30GNDLZ6V9

Specifications

Dimensions: H 4.33 in, W 5.04 in, D 8.27 in

Dimensions

Product Depth (in.)

8.27 in

Product Height (in.)

4.33 in

Product Width (in.)

5.04 in

Details

Amperage (A)

8 A

Cord Length (ft.)

0 ft

Discharge Flow @ 0 ft. (gallons/hour)

180.05

Discharge Flow @ 0 ft. (gallons/min)

3

Discharge Flow @ 10 ft. (gallons/hour)

180.05

Discharge Flow @ 10 ft. (gallons/min)

3

Features

Corrosion Resistant, Non-Clogging, Portable, Solids Handling

Head Pressure (ft.)

0

Housing Material

Thermoplastic

Impeller Material

Stainless Steel

Included

Hardware

Maximum Discharge Flow (gallons/hour)

180.05

Maximum Horsepower (hp)

0

Maximum Pressure (PSI)

55 PSI

Maximum Working Temperature (F)

109

Minimum working temperature (F)

30

Outlet Connection

Threaded male

Product Weight (lb.)

4.41 lb

Pump Switch Type

Diaphragm, Pressure

Returnable

7-Day

Vertical Lift (ft.)

0

Voltage

12v

Warranty / Certifications

Certifications and Listings

CE Certified, ROHS

Manufacturer Warranty

1 Year

Questions & Answers

If I attach it to the hose spicket on my well head will it pump the water through the pump. I want to use it for when we have a power outage and hook it up to a 12 volt source to fill water bottles. Can I hook it up to a car battery?
ByAug 20, 2026
1 Answer | 
Answer This Question

Dear customer, Here is Selina. Regarding your question, It can be connected to a 12V car battery. Whether it can pump water into the water pump depends on whether the suction lift meets the 1.8-meter requirement. If you have any other questions, you can contact us at Hamm@yamoonshop.com

By|Aug 23, 2026


    Is this an on demand water pump
    ByOct 19, 2025
    1 Answer | 
    Answer This Question

    Dear customer, Here is Alisa, regarding your question, this is an on-demand water supply pump, that is, when the tap is turned on, the pump automatically starts working, and when the tap is turned off, the pump automatically stops. If you have any other questions, you can contact us at: Hamm@yamoonshop.com

    By|Oct 21, 2025


      Viewing 1-2 of 2

      Customer Reviews

      4.5 out of 5

      • 4.5 out of 2 reviews
      • 0% recommend this product
      Filter by:
      Showing 1-2 of 2 reviews
      The pump does a good job pumping out the bilge. It did have an issue with a loss of suction. I had to fill the suction hose by hand to re-establish a suction. This happened after cleaning the suction strainer.
      by
      Fantastic little pump. Love the adjustable pressure switch.
      by
      • Verified Purchase
      Showing 1-2 of 2 reviews

      Compare Key Features

      current item

      Product Snapshot

      Ideal for RVs, boats, and campers, this 12V pump offers a 3.0 GPM flow rate and automatic pressure switch for reliable water supply.
      Ideal for RVs and boats needing reliable water flow with auto pressure and quiet operation.
      Ideal for RVs, boats, and campers needing reliable water pressure with a 3.5 GPM flow rate and quiet operation.
      Ideal for RVs, boats, and farms, this 12V pump offers a 5.5 GPM flow rate and automatic pressure switch for effortless water supply.

      Flow Rate

      180 GPH
      180.05 GPH
      210 GPH
      330 GPH

      Maximum Head Lift

      0 ft
      0 ft
      0 ft
      6 ft.

      Power Consumption

      90 watts
      96 watts
      104 W
      2/7 hp

      Cord Length

      0 ft
      0 ft
      0 ft
      3.94 ft.

      Automatic Float Switch