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Water Pump Washer and Snap Ring Set, Oberdorfer

Part #: Z4789
Replacement washer and snap ring set for all vintages of Oberdorfer water pump.

There is a washer in front off the impeller, as shown in the additional image, and one behind the impeller on the shaft.
Rebuilding your pump will take some time. Unless your boat is on the hard, we suggest you purchase a new pump and a repair kit. Replace the pump to get the boat back into service, then rebuild the pump at your leisure. Now you have a spare pump ready for a quick swap the next time there is a failure.