126 and 123 power steering pumps identical?

[t walgamuth]

so are they?

my 500sec pump is howling like it is low on fluid but it isnt. so i am thinking of putting in a spare from a 123.

tom w

[Motorhead]

Tom, did you check the pressure relief valve for debris?

[rchase]

Not sure. My brother has a 123 and I have a 126 with identical engines. You would be surprised what parts are not compatible.

Really though an SEC is much to nice of a car to not have matching part numbers. Do you really want the 123 part number screaming at anyone that opens the hood that you were being a cheapskate?

Food for thought

[t walgamuth]

Originally Posted by Motorhead

Tom, did you check the pressure relief valve for debris?

is that proceedure described in the fsm? i also have been thinking maybe i need to change the fluid and filter.

and if the parts are the same, then the pump in the 126 may well carry a 123 part number from the factory.

tom w

[Larry Delor]

I think the part numbers are on the side of the pump, on the tag.

[rchase]

Originally Posted by t walgamuth

is that proceedure described in the fsm? i also have been thinking maybe i need to change the fluid and filter.

and if the parts are the same, then the pump in the 126 may well carry a 123 part number from the factory.

tom w

Thats very well possible. Ill have to go check my car and see. I have seen a few 129 part numbers on my W140 which I found to be odd.