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Sherwood water pump replacement

Dec 7, 2008
39
Catalina 310 Waretown, NJ
I have a 2001 Catalina 310 that needs to have the old Sherwood water pump replaced. I cannot find, in my manuals, the part # for this pump. I would like to replace it with the Oberdorfer pump with the direct drop in part. Does anyone have the replacement part # for this Oberdorfer pump and/or the part # for the old Sherwood pump?
 

Clydo

.
May 28, 2013
290
Catalina C310 SF Bay/Delta
I have a 2001 Catalina 310 that needs to have the old Sherwood water pump replaced. I cannot find, in my manuals, the part # for this pump. I would like to replace it with the Oberdorfer pump with the direct drop in part. Does anyone have the replacement part # for this Oberdorfer pump and/or the part # for the old Sherwood pump?
Think Sherwood R14D68 Best to have easy replacement Oerdorfer N202M-908. Much easier to replace
impellor IMHO.


Clyde Thorington
C310 #245
I LEAN TOO
San Jose, CA
 
Nov 16, 2012
996
Catalina 310, 2000, #31 31 Santa Cruz
I have a 2001 Catalina 310 that needs to have the old Sherwood water pump replaced. I cannot find, in my manuals, the part # for this pump. I would like to replace it with the Oberdorfer pump with the direct drop in part. Does anyone have the replacement part # for this Oberdorfer pump and/or the part # for the old Sherwood pump?
Prices are from https://www.pumpsandpartsonline.com/ I found them to be very helpful.

N202M is pump. -M specifies o-ring seal. -16 has ½” FPT fittings, -15 has 3/8”. $225. Both -16 and -15 need base ground to fit. Gasket for them to fit on the M25XPB is Kubota 16264-88130; can be used as a template for the grinding.

If you go with the o-ring seal, Impeller is #6593. Viton O-ring is 9797-034. (Size #034). Buy a lifetime supply of o-rings from McMaster.

-908 fits with no mod, but uses clamps to secure (round base). Not sure if these are the same clamps you have now. $326

-837 is the -908 plus fittings, clamps, and gaskets. $414
 

Clydo

.
May 28, 2013
290
Catalina C310 SF Bay/Delta
Prices are from https://www.pumpsandpartsonline.com/ I found them to be very helpful.

N202M is pump. -M specifies o-ring seal. -16 has ½” FPT fittings, -15 has 3/8”. $225. Both -16 and -15 need base ground to fit. Gasket for them to fit on the M25XPB is Kubota 16264-88130; can be used as a template for the grinding.

If you go with the o-ring seal, Impeller is #6593. Viton O-ring is 9797-034. (Size #034). Buy a lifetime supply of o-rings from McMaster.

-908 fits with no mod, but uses clamps to secure (round base). Not sure if these are the same clamps you have now. $326

-837 is the -908 plus fittings, clamps, and gaskets. $414
Think I lucked out. My switchover to Ober didn't require any grinding to fit my M24XPB. I did read about some
folks who had to do some grinding.
 
Nov 16, 2012
996
Catalina 310, 2000, #31 31 Santa Cruz
Think I lucked out. My switchover to Ober didn't require any grinding to fit my M24XPB. I did read about some
folks who had to do some grinding.
Do you remember what model # you got?
 

Clydo

.
May 28, 2013
290
Catalina C310 SF Bay/Delta
Do you remember what model # you got?
Ober part # N202M908

Impellor OB 6593

O ring OB 9797-034B

This was in April 2016 but part number should be the same. O ring sooo much better then using paper
gasket in Sherwood.

Clyde Thorington

C310 # 245
ILEAN TOO
San Jose, CA
 

JRT

.
Feb 14, 2017
1,966
Catalina 310 211 Lake Guntersville, AL
I'm happy the PO already did this upgrade for sure!
 
Sep 29, 2008
1,865
Catalina 310 #185 Quantico
Does anyone have a template for the 202-16? My Sherwood is still servicable, and I just put in a new impeller, but ordered a Oberdorfer as I am sick of those backward bolts (really stupid design). Would like to get the new one ready to go and then replace it when the impeller on the Sherwood is due for a change.