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Cat Man
Cat Man, Caterpillar Engine Expert
Category: Heavy Equipment
Satisfied Customers: 8863
Experience:  23 Years Caterpillar Engine experience.
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How do i change water pump on 3406e

Resolved Question:

how do i change water pump on 3406e
Submitted: 6 years ago.
Category: Heavy Equipment
Expert:  Cat Man replied 6 years ago.

Hi. Thanks for using JA! I can help you with this.


Could you get me your engine serial number please?

Customer: replied 6 years ago.
i dont know
Expert:  Cat Man replied 6 years ago.

Thats Ok. I just always like making sure that i give the most accurate information possible. I will assume that it s a 5Ek, 6TS, or 2WS engine.


Here is an image of the water pump. In order to remove it, you must drain the cooling system first. Then you will need to remove the thermostat housing (7). Then remove the backing plate (8). Then remove the elbow that connects the oil cooler to the water pump (10).




Then all you have left to do is remove the bolts that are located on the front of the engine and the water pump will come off.




if your engine has an alternator on top of the water pump, it will need to be removed as well.


Please let me know if you have any more questions.



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