Well now my secondary electric waterpump is leaking. I guess the strain of the recent problems I've had with the thermostat, radiator, and auxiliary fan fuse was too much for it.

I saw a past post that alluded to replacement o-rings for this sucker. Anybody done this or know a part number?

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Ken Fuller
1990 300E

Check here. Send an email to Parts Shop. I am not aware of this part having replacement o-rings. Isuppose you could remove it and try to match what's there with aftermarket o-rings, but if the impeller housing is leaking (most likely), you will nedd to replace the pump, probably between $130 and $150.

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Jeff Lawrence
1989 300e
2000 Dodge Grand Caravan SE
No matter what you fix, there will always be something else to fix..
"Warranty" is just another way of postponing the inevitable.

I had to replace one in my 190E. Coolant was spraying
by the fan when it spun. Dealer said these parts
are not rebuildable. Generally when seal leaks I believe fan assy probably has a bad bearing in it.

Gary

Well that would be a shame if parts aren't available to fix it. I disassembled it this afternoon and it appears that all it needs are o-rings. There's a large o-ring between the two halves of the pump housing. I didn't remove the impeller as it's not leaking too badly at the moment and I didn't want to make it worse until I could be sure of replacement parts. That's where the leak is though; where the shaft comes into the housing. I also took the case off the motor. The brushes look easily replaceable too.

Curiosity satisfied, I cleaned it all up, put it back together, and reinstalled. This will be an easy one if I can source parts. I'll check Parts Shop as suggested.

Whether I fix this one or buy new one, I'm thinking seriously of putting an in-line water-proof fuse holder in series with the pump harness. Previous posts say that when these pumps pull too much current they destroy the climate control unit.

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Ken Fuller
1990 300E