Jabsco Raw Water Parts

I could use a confirmation that the Jabsco 6980-3100 pump is correct for a 12V71 from anyone who's rebuilt theirs. The DD # from the starboard pump cover plate is 23507972. After 37 years, I can't be certain the cover hasn't been scavenged from another unit along the way.

I think it's time for a port-side tune-up with a new cam, wear plate and end cover. I felt like the last new impeller I installed went in a bit too easily. I'm also running a tad bit higher water temp even after that new impeller and a clean HE.
Attachment 42168
Purty ain't it.

This cover plate looks a little strange (stamping), and the good side ain't much better than what's showing. Since the boat has ZF gears, the Allison stamping is unlikely not OEM; the other pump has only a DD stamp.
Attachment 42169
Just trying to order right the first time. Thanks for your help!

Here's my file on the Jabsco Raw water pump for 12-71.
Marineparts and pumps makes a great package and it is packed by someone who clearly cares.

Pump 18780-0001
Cam 18785-0000
Impeller 1879-0001
Gasket 5194567
Shaft 17366-1000
Major Repair Kit 23502097

eBay Vendor: marinepartsandpumps
New pump repair kit for Jabsco 18780-0001 Detroit Diesel Pump 8927296
Complete Kit , 18780-0001MJK , Major Service Kit. Contains All Internal Service Parts Except the Shaft
Similar to DD 23502097, but does not include the shaft.
Replaces:
1 Each 18786-0001-W Impeller kit 18786-0001 and 18785-O'RING
1 Each 18784-2000 End Cover
1 Each 18787-0000 Wear plate
1 Each 18785-0000 Cam Liner
2 Each 18752-0000 Ball Bearing
1 Each 92701-0180 Seal
1 Each 96080-0371 Mechanical Seal
1 Each 18721-0000 Retaining Ring
1 Each 18725-0000 Retaining Ring
4 Each 91005-0040 Screw with lock washer
1 Each 91402-0230 Woodruff Key
1 Each 18754-1004 Slinger O-ring
1 Each 23501662 Mount Gasket
2 Each 5117786 Flange Gasket
Impeller Specifications:
Width: 3-1/2" (88.9mm)
Diameter: 4-5/8" (118mm)
Shaft: 1" (25mm)
Drive: Type 5 Double Flat |
Material: Neoprene
Silhouette: R 9 blades

I don't know if this image will be legible

Attachment 42170

Your pic shows the 5 screw cover. Your friends keep sending 4 screw cover pump data.
I'm sure you have the 3 1/2" , 5 screw cover pump.
For all, Pages from Depco Pump;

Many thanks to all for the great information.

Well I think I squeezed about all I could get out of this pump cam. No wonder the impellers slid in noticeably easier.

Attachment 42266
Old port side cam was worn .045 thinner at center.
Attachment 42267
The fingers were up to .230" eroded (overall). No doubt the pump will move more water. Glad I ordered two sets of parts. Now the starboard pump will get the treatment.

Quote:

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Originally Posted by racclarkson@gmail.com

Well I think I squeezed about all I could get out of this pump cam. No wonder the impellers slid in noticeably easier.

Attachment 42266
Old port side cam was worn .045 thinner at center.
Attachment 42267
The fingers were up to .230" eroded (overall). No doubt the pump will move more water. Glad I ordered two sets of parts. Now the starboard pump will get the treatment.

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Yup, looks like it was definitely time.

Eat sand much? Someone flipped the cover probably due to scoring. But not a good idea to use the logo side. The company was DDA for years had no bearing on what the engine was driving.