Oil cooler pipe part number for 93 Bonnie SE
 

My 93 SE developed massive oil leak from where Oil cooler pipes and the cooler pipe clip meet. I think I need to order new Oil cooler pipes from gmpartdirect to replace it.

Follow picture is copy from service manual. ( I am a newbie )
From the manual, the part numbers are: 25846228, 25646230
Do these two parts include everything from engine to oil cooler.
Am I right about the part numbers?

Thank you.

http://vipwindsorshuttle.com/tmp/coolerpipe.jpg