Help with some vac line part #s. (1 Viewer)

This site may earn a commission from merchant affiliate
links, including eBay, Amazon, Skimlinks, and others.

Joined
Apr 16, 2019
Threads
34
Messages
2,390
Location
Colorado
Looking for help on these part numbers for the vacuum hoses. Couple of small hoses I can buy the generic sizes from Toyota but the ones snaking up from by the PS pump to the top of the intake manifold and to the air box I need to get the specific parts due to all of the bends.

Trying to find these on partsouq and toyotapartsdeals but not seeing the right photos to correspond with what mine look like.

I've rigged it up here for now (you can see my acrylic tubing hack job for the time being). I found a vac leak and cut the cracked part off and did this to confirm it was the leak.

99 LC
MVIMG_20191207_142150.jpg
MVIMG_20191207_142142.jpg
 
Look like the Idle Up hose set, P/N 17030-50070.

Diagram 1708 "Vacuum Piping". This is for my '98, likely similar to your '99:


I never thanked you for these part numbers. I appreciate the help, these are the right ones.
 
12261-50050
12262-50030
23829-50070
77754-60240
17030-50070
17345-50080
17341-50110

for the next guy coming along, this list covers every larger vac hose running around the engine bay. covers PCV, EVAP, fuel vapor (not liquid fuel supply or return), idle up, etc. this list is for a 12/99 build 2000 MY.
 
12261-50050
12262-50030
23829-50070
77754-60240
17030-50070
17345-50080
17341-50110

for the next guy coming along, this list covers every larger vac hose running around the engine bay. covers PCV, EVAP, fuel vapor (not liquid fuel supply or return), idle up, etc. this list is for a 12/99 build 2000 MY.
Right on. Thanks for this.
 
I know this is a year old, but is there a reason to use the OEM assemblies here vs aftermarket? I've replaced a few lines already with silicone vacuum hose I had laying around and it seemed to be flexible enough to navigate some of the tighter turns. Honestly though, I am considering the OEM lines for some of the complicated runs mainly because the OEM looks good and the silicone looks like crap. OEM also lasted 21 years so I will never need to replace these lines (at least I don't think so.)

Thanks for putting these part numbers out there though. Freaking love this forum.
 
17030-50070 - hose no 1 idle up
17030-50070 - hose no 1 idle up.jpg



17341-50110
17341-50110.jpg


12261-50050

12261-50050.jpg


12262-50030
12262-50030.jpg


17345-50080
17345-50080.jpeg
 
23829-50070
23829-50070.jpg


77754-60240
77754-60240.jpg
 
Apologies for the thread jacking. Does anyone know the part number of this particular vacuum hose? Rig is a LX470 2000 UZJ100.
I'm in midst of replacing several hoses as a PM since some vacuum hoses are having cracked ends.

wO85sN2.png

Pic from Cyrus100
 
Apologies for the thread jacking. Does anyone know the part number of this particular vacuum hose? Rig is a LX470 2000 UZJ100.
I'm in midst of replacing several hoses as a PM since some vacuum hoses are having cracked ends.

wO85sN2.png

Pic from Cyrus100
You gotta me more specific than just that.. where is this pipe coming from and going to etc.

Anyways I think you likely get your answer here. Diagram link. Here are all vent hoses around there. toyodyi.com
 
Apologies for the thread jacking. Does anyone know the part number of this particular vacuum hose? Rig is a LX470 2000 UZJ100.
I'm in midst of replacing several hoses as a PM since some vacuum hoses are having cracked ends.

wO85sN2.png

Pic from Cyrus100

EDIT FOR POSTERITY: Hose is 3/16 ID or 4.5mm. A generic piece of vac line that has a similar ID should work perfect 👍
 
Last edited:
That hose if I remember right is 3/8" ID which is nice - it's a super common vacuum line and there is nothing special about that specific vac line. A generic piece of vac line that has a similar ID should work perfect 👍

I don't remember the size of that hose but it is not 3/8". It is very small, probably the smallest vacuum hose in the engine compartment.
 
I don't remember the size of that hose but it is not 3/8". It is very small, probably the smallest vacuum hose in the engine compartment.
Yes indeed, I’m referring to the smallest and most narrow vacuum hose connected to the airbox.
 
12261-50050
12262-50030
23829-50070
77754-60240
17030-50070
17345-50080
17341-50110

for the next guy coming along, this list covers every larger vac hose running around the engine bay. covers PCV, EVAP, fuel vapor (not liquid fuel supply or return), idle up, etc. this list is for a 12/99 build 2000 MY.
anyone have a list for the '03+ 100s?
 
Caliper read:

ID: 9.78mm (measured the male side)
OD: 12.8mm (measured the hose)

View attachment 2626919


Closest inch fraction to 9.78mm is 25/64 which would be too big, so back to my original comment its 3/8" which would be 9.52mm and allow the tube to stretch and grab.

I believe we are talking about 2 different hoses here. My guess is you measured the hose that is closest to the fire wall. The hose that goes to the fuel pressure regulator is not this big.
 
Ok, reminder for myself to not try to do this stuff in between work as I rushed it.

Measured rear first time. Caliper not zeroed the second time.

Zeroed and attaching pics. Measurements make sense this time. I updated above.

PXL_20210326_210732143.jpg


PXL_20210326_210749764.NIGHT.jpg
 
Last edited:
Anyone know where to source this hose assembly, looks like they discontinued it, Thanks.

77754-60240
 

Users who are viewing this thread

Back
Top Bottom