This product has been discontinued.
Johnson Pump
Cartridge for 500GPH Pump - Johnson Pump
Price: $22.95
Discontinued
Save: $12.05
(34% Off $35.00)
Part # 28552
(Discontinued)

Easy to install and service. Just lift the tab on the housing, twist motor cartridge and pull out to clean debris from the impeller. Upgrading the capacity of your bilge or aerator pump is simple with this convenient motor cartridge. Fully submersible, ignition protected and saltwater tough. 12V.

Average Customer Review for Cartridge for 500GPH Pump - Johnson Pump
Full StarFull StarFull StarFull StarFull Star
Based On 11 Reviews | Write Review
Full StarFull StarFull StarFull StarFull Star
What the doctor ordered..
by Forrest from Greenwood, Indiana on June 29, 2017
Made the process of replacing worn out pumps much much easier. Working inside the tight quarters where the pumps are located is difficult and these prevented me from replacing the entire pump housings, reconnecting hoses, etc.. Love the design.
(1 of 1 people found this review helpful)
Was this review helpful?
Full StarFull StarFull StarFull StarFull Star
Worked perfectly
by Bill from Huntington, Indiana on June 18, 2017
Fit great ..worked great...easy install
Was this review helpful?
Full StarFull StarFull StarFull StarFull Star
Very quiet and efficient
by Rex from Auburn, Michigan on September 17, 2016
Replaced within 30 minutes and so far, it operates as expected.
Was this review helpful?
Full StarFull StarFull StarFull StarFull Star
Good product
by Donald from Pinckney, Michigan on June 20, 2016
Well satisfied!
Was this review helpful?
Full StarFull StarFull StarFull StarFull Star
Easy transaction
by Ronnie from Ashdown, Arkansas on June 18, 2016
Ordering product was easy. Installed the cartridge in just a few minutes. Works great, very satisfied!
Was this review helpful?
Full StarFull StarFull StarFull StarFull Star
Works great
by Tyler from Ham Lake, Minnesota on January 28, 2016
Needed a new pump cause my shorted out. Got online found the replacement right anyway now I'm back in business for the season
Was this review helpful?
Full StarFull StarFull StarFull StarFull Star
Easy to change
by Martin from Bradford, Pennsylvania on July 26, 2015
Replacement bilge pump was easy to install. Works good. Will order another one to keep as a spare. There are three in my boat.
Was this review helpful?
Full StarFull StarFull StarFull StarFull Star
Mayfair Cartridge
by Ricky from Fayetteville, Arkansas on May 25, 2015
Exact replacement cartridge for aerator pump. Just remove old cartridge and install new one. Just had to put the correct connectors required in my boat for installation.
Was this review helpful?
Full StarFull StarFull StarFull StarFull Star
cartridge pump
by John from Basin, Wyoming on September 13, 2013
Easy to install. I had to splice the wiring into the existing connector but that didn't take long. I assume different boat models are wired differently would be the reason the new cartridge didn't have an electrical plug built in...Thanks
Was this review helpful?
Full StarFull StarFull StarFull StarFull Star
Pop out - Pop in with a twist
by Shawn from Hardy, Virginia on July 25, 2013
It's great to just pop one of these old ones out and pop a new one in. Hope they make them forever. Could sell a connection kit with waterproof connectors like they use for fuses.
Was this review helpful?
Full StarFull StarFull StarFull StarFull Star
replacement bilge pump
by Donald from Muskego, Wisconsin on July 02, 2012
Easy replasement, snap out the old unit and snap in the new unit and resplice the wires.
(0 of 1 people found this review helpful)
Was this review helpful?
Q:
Will this fit in a Mayfair Marine model3250?
A:
We do not pull up the original Mayfair model. This works with Johnson Pump 32503.


Ask a question
Question & Answer Guidelines
This product ships in 1 business day.
Add to Cart and enter your Postal Code to determine the shipping charges.
Most products and orders leave our warehouse in 1 business day. However, select items may take more processing time. Alaska and Hawaii orders please add 1 additional warehouse processing day.
Standard Shipping Policies