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BonesD

Senior Member
Joined
Apr 23, 2019
Messages
268
Location
USA
Vessel Name
Michelle
Vessel Make
1977 Schucker 436
Can anyone identify this pump with an actual number.
I changed out the impeller the other day with parts I found on the boat. The gasket kit, two different footprint gaskets and two Orings, neither of which fit the application that we’re supplied with the impeller kit makes me wonder about the impeller itself. Jabsco has their name forged into the pump assembly 5 times and the address of their plant but not a single part number.
The impeller cover is six bolts of equal spacing.
The unit is mounted on a Perkins 4.236 that was installed in 1977. DONT know it’s true age. If you can help me I would appreciate it.
Thanks
 

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Why did you pull it off the engine? The main drive gear looks rusty, it should be greasy.

pete
 
That is the spare, the identical twin of the one still mounted to the engine��
 
On our Jabsco pumps the cover plate has stamped ID numbers. They are obscured when covered by paint but clear when fresh out of box. American Diesel told me this number matches the gear to a common pump body
 
My cover plate says Jabsco, Costa Mesa Ca, and loosen screws to drain.
I found what looks like my pump. The new plate pictured below has part number and rotation stamped on it.
Hopefully I can make the right choice with this info.
Thanks
 

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Last edited:
Might go at it backwards. Match the impeller then see what Jabsco pumps use that impeller in that application.

Usually the replacement packs have the impeller and a couple different gaskets for different pumps. Find a local marine store with impeller kits. Since you have a spare take it along and check.
 
Sounds like good advice. Guess. Need to take a ride to Fisheries Supply.
 
Hi BonesD,

Like HopCar said, Depco (Depco Pump Company) is your friend. Doubt there's anything they don't know about Jabsco pumps.

Regards,

Pete
 
Might go at it backwards. Match the impeller then see what Jabsco pumps use that impeller in that application.

Usually the replacement packs have the impeller and a couple different gaskets for different pumps. Find a local marine store with impeller kits. Since you have a spare take it along and check.

One size of impeller can match up several different gears. Need to get both right if buying a complete new pump.
 
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