Quote:
Originally Posted by JimFreeh
When I changed out the water pump on my 87 300E ten years ago, I recall this question.
I *think* the explanation was that the water pump had changed at some point, and if you had the early one, you needed this part to adapt the later style.
Jim
|
This is correct. Look at your current one, then compare to the new pump, it should be obvious.
It does have an O-Ring you should get regardless. Along with the pump-> head pipe coolant hose.