I need to know where to buy the molded heater core hoses that go on the inside of the car. The ones that attach the core itself to the firewall. Any help would be greatly appreciated!

Your local Nissan parts department has them.

B7182-N3100 Hose Water Inlt 8/73-12/74

27183-N3100 Hose Water Out 8/73-12/74

I don't know how much they cost at the dealer. I purchased mine on eBay but don't remember how much I paid. Do a search for it on eBay Motors. For example, there is item # 220159266207 with a starting bid of $30 or Item number: 220160709916 with a "Buy It Now" price of $38.99. Both come with the firewall grommets.

MSA also has them and less expensive as the current eBay listings...

http://www.thezstore.com/store/merchant.mvc?Screen=SFNT

Do a search for "heater hose".

Code: 16-7621

Price:$8.57

This is the hose that goes from the connector at the back of the cylinder head, up and through the firewall.

Code: 16-7622

Price:$9.68

This is the hose that goes from the connector at the back of the engine side hose, up and through the firewall.

Code: 16-7610

Price:$1.25

These often need to be replaced when replacing your 240Z Inlet and Outlet heater hoses. Two required per vehicle.

Good Luck!

My Nissan dealer gives a club discount, his prices are always less than eBay, MSA, and even (just barely) Courtesy and Nissanparts.cc. Never any shipping charges either. So give your dealer a shot. Don't be afraid to ask for Z club discounts.

Thanks a lot everyone. This site is very helpful!!

Black Dragon pg. 76 in their 2007 summer edition catalog