Need some 84 non-AC heater core hoses (Page 1/1)
JarHead389 OCT 15, 08:50 PM
hey all - i've created a bit of a problem for myself today.

long story short, i had to cut up the two rubber hoses running into the heater core, now i need to find some replacements.

on the fiero store i've found this listing, but it seems to be for the right and i can't find a left one. are the two hoses the same? am i just not looking hard enough?

any help is much appreciated.
Vintage-Nut OCT 15, 09:06 PM
TFS Part # 58351
https://www.fierostore.com/...spx?s=58351&lp=57690
JarHead389 OCT 15, 09:14 PM

quote
Originally posted by Vintage-Nut:

TFS Part # 58351
https://www.fierostore.com/...spx?s=58351&lp=57690



is this hose a replacement for just the left or both of them? trying to make extra sure i've got this all correct before ordering
Vintage-Nut OCT 15, 10:09 PM
The large diameter heater core hose is the TOP {Part # 58351 is ONE Hose}
The small diameter heater core hose is the BOTTOM {Part # 57690 is ONE Hose}

Dennis LaGrua OCT 16, 09:31 AM
.I have made replacement hoses from straight heater hose by inserting springs then heating the hoses to take the shape. Sometimes I leave the springs in the hoses..

------------------
" THE BLACK PARALYZER" -87GT 3800SC Series III engine, custom ZZP /Frozen Boost Intercooler setup, 3.4" Pulley, Northstar TB, LS1 MAF, 3" Spintech/Hedman Exhaust, P-log Manifold, Autolite 104's, MSD wires, Custom CAI, 4T65eHD w. custom axles, Champion Radiator, S10 Brake Booster, HP Tuners VCM Suite.
"THE COLUSSUS"
87GT - ALL OUT 3.4L Turbocharged engine, Garrett Hybrid Turbo, MSD ign., modified TH125H
" ON THE LOOSE WITHOUT THE JUICE "

[This message has been edited by Dennis LaGrua (edited 10-16-2025).]

82-T/A [At Work] OCT 16, 12:15 PM

quote
Originally posted by Vintage-Nut:

The large diameter heater core hose is the TOP {Part # 58351 is ONE Hose}
The small diameter heater core hose is the BOTTOM {Part # 57690 is ONE Hose}




Just to add to this, you'll notice that they fit accordingly too... the hoses are the same size going into the heater core, but where they mount, the inlet is larger or smaller.