Proper impeller for Universal M-12 diesel

[Ran-Dee9229]

I have a 1984 M-12 diesel in my Oday 28
I think that motor came w either a Sherwood or an Oberdorfer pump. Are the impellers compatible? The
Sherwood impeller is part num 287439
Impeller 302875 for Oberdorfer
Any idea where to find these and are they the same? The Sherwood impeller has imprinted on it 10077A

 

[sail sfbay]

The manual in the link below on pages 63 - 66 showed 3 different pumps. I would take it apart to confirm the correct part.

Universal M-12 Service Manual (Page 63 of 185) | ManualsLib

www.manualslib.com

One link to a parts supply house: Universal Diesel Engines

 

[envisionvenicefl]

Dan, they are different. Pump should be labeled. On Tues I can let you know my source.

 

[envisionvenicefl]

Dan, my 85 ODay 28 has a Oberdorfer pump model N202M 15. Found the kit on ebay. Simple to replace.

 

[odaydokay]

My 85 came with a Sherwood, so O'Day mixed and matched and I can confirm they are not compatible for their impeller kits. I have a new Sherwood kit (Westerbeke 33100, 12 vanes) you can have for just the shipping if you like; just PM me. BUT do be sure which unit you have.