Shopping Cart

Your cart is empty.

Your cart is empty.

Jabsco 31705 Series Marine ParMax 4 Bilge and Shower Drain Pump, 258 GPH

Free shipping on orders over $29.99

$278.97

$ 99 .00 $99.00

In Stock

1.Style:12 Volts Dc


About this item

  • Bilge / livewell / general purpose diaphragm pump
  • Flow rate: Nominal 16.3 Litres/min (4.3 USgallons/min), Self-priming from dry up to 2.4m (7.8ft)
  • Run dry without damage, smooth flowSmooth Flow
  • Four piston, diaphragm pump
  • Powerful heavy duty motor with thermal overload protection
  • Snap in ports, waterproof coating
  • 1 year warranty


For bilge/livewell/General Purpose applications that do not require a pressure switch. Oil resistant parts allow pumping of diesel fuel. Meets USCG Regulation 183.410 and EN ISO 8846 MARINE (Ignition Protection Standards), Meets EN 50081-1 Electro-magnetic Compatibility, Complies with EN ISO 8849 MARINE Electric Bilge Pump


Kate Smith
Reviewed in the United States on March 29, 2025
West Marine has been upstaged by Amazon. If you know exactly what you need, Amazon will deliver at a reasonable price. Imagine that!If you have questions you need to go elsewhere, but cruisers can benefit. Same parts, less money and delivery to any port.
WillDo
Reviewed in the United States on September 10, 2023
The diaphragm tore after 8 hours of operation.
Unsatisfied
Reviewed in Canada on August 22, 2023
Installed the pump and it worked perfectly. Turned it on again two months later and it wouldn’t produce enough suction to create water flow. Pump sounded like it was failing. Not a good product.
Jeff Guyer
Reviewed in the United States on May 19, 2023
Well, not an accurate review cause I just installed it. Worked as advertised on initial test. Odd though, when I pulled the blue plugs out water came out...did I get a returned one?
Eddie maimo
Reviewed in the United States on March 21, 2023
The pump that I received did not work A waste of time and labor will never buy from them again now haven’t received refund on my credit card!!!!!!!
Mike Seiser
Reviewed in the United States on October 2, 2023
works very well
Peter T.
Reviewed in the United States on December 22, 2019
Works well so far as a drain pump for shower on our boat. Can run dry and hooked up to a rocker switch to turn on and off. Mounted below deck and reasonably quiet.
JHNewsome17
Reviewed in the United States on September 14, 2018
I installed this pump and filter for my shower pump out on my boat earlier this year. There are no problems so far. It works great. If you install this as a bilge pump just realize that it is a little noisy because of the type pump. You will hear it when it comes on. If that feature bothers you then go with a different type pump. I like the small filter. It's easy to clean.
GRR
Reviewed in Canada on August 7, 2018
This pump works well as a bilge pump. Connected with an automatic float switch. Screen filter helps prevent some pollution as well as protecting pump
David Holubetz
Reviewed in the United States on August 9, 2012
Bought this for my sailboat, after another belt and pulley pump died. Tired of those exposed models. This one is all enclosed, and very compact. It easily fit under the floorboards. I am using it to pump out the shower drain pan. It has plenty of power and it is pretty quiet.A few features worth mentioning :The inlet and outlet ports push into place and then lock with a slide of the thumb. This is nice because you can install the pump and then make up the ends of the hose with the fittings where you can see them and tighten them, then push them into place (where it might be hard to get a screwdriver and flashlight)The inlet and outlet ports can be changed out for right angles. You have to specify these when ordering, or order them separately. They are not expensive. Good to have on hand for the future too.I ordered mine with 3/4 inch ports, but they also come in 1/2 inch. The 3/4 is better for bilge type pumping.The mounting plate removes from the pump with two screws. So you can take it off, position it, drill your holes and make sure it will all work, then put the plate back on the pump and drop it into place. The only thing that would be better would be if the pump would somehow snap in to the plate, so you could fasten the plate first and then just click it in from above.There are rubber isolators for the feet of the plate. They minimize structure-borne vibrations and thus sound.Included is a nice strainer, which can be mounted with screws or is light enough to just float in the air attached to the hoses.I am switching out all the pumps in my boat, using Jabsco and Flojet, which I believe are the same pump made by the same parent company. High quality stuff. Recommended.