What hose is this?

Nissan 300ZX technical discussion forum: Maintenance, performance, installations, modifications, how-to's and troubleshooting.
kimyongtai
Posts: 4
Joined: Sun Sep 27, 2020 7:26 pm
Car: 1992 Nissan 300ZX 2+0
T Top, NA, MT

Post

Taking plenum off for the first time, folx. Replacing old style fuel injectors for new style. So fun! #notsarcastic
Cracked one of the hoses in the process (amongst other things)
Can you help identify this hose so I can order a replacement?

Driver's side of upper plenum
1992 NA MT

Image


itsa300zx
Posts: 1243
Joined: Sun May 31, 2009 9:39 am
Car: 1990 300zx NA W/TT swap
2011 Nissan Rouge S
2008 Highlander SR5
Location: up North

Post

Looks like brake booster hose. Take a picture of the entire hose including other end to confirm. Should be a plastic check valve half way to the booster.

Here is a pic about half way down the thread:
cleaning-up-the-plenum-moving-stuff-away-t538265.html

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VStar650CL
Technical Expert
Posts: 8294
Joined: Thu Nov 12, 2020 1:25 pm
Car: 2013 Nissan Altima 2.5 SL
2004 Nissan Altima 2.5 S

Post

Hard to tell without panning out, but if that's the LH rear corner of the plenum, the hose is for the brake booster. P/n would be 47471-30P00.

kimyongtai
Posts: 4
Joined: Sun Sep 27, 2020 7:26 pm
Car: 1992 Nissan 300ZX 2+0
T Top, NA, MT

Post

That's the one! and Holy Moly what a clean engine bay. Resolved. Thanks, friends.

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VStar650CL
Technical Expert
Posts: 8294
Joined: Thu Nov 12, 2020 1:25 pm
Car: 2013 Nissan Altima 2.5 SL
2004 Nissan Altima 2.5 S

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You're most welcome, happy to help!


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