vacuum pump/power steering pump oil leak
12-05-2011, 11:35 AM
#16
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Cummins seal kit 4089742 is under $10 at your local cummins parts house and has everything you need including instructions. You can use a 1" and 1 1/4" sockets to press the seal in and out. Pull the drivers side intercooler tube out and take the vaccum pump and power steering unit out as a unit. Make sure and pay attention to the direction of the seal when you remove it, it's hard to see in the pictures how it goes in. The seal housing can be a pain to re-install and get seated, I used a seal driver to press it back into place. Probably a 4 hour job your first time.
11-07-2018, 07:36 PM
#18
Registered User
Cummins seal kit 4089742 is under $10 at your local cummins parts house and has everything you need including instructions. You can use a 1" and 1 1/4" sockets to press the seal in and out. Pull the drivers side intercooler tube out and take the vaccum pump and power steering unit out as a unit. Make sure and pay attention to the direction of the seal when you remove it, it's hard to see in the pictures how it goes in. The seal housing can be a pain to re-install and get seated, I used a seal driver to press it back into place. Probably a 4 hour job your first time.
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