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Heater hoses

H

hiredgun58

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Does anyone have a source for heater hoses for a suburban with Aux heat ?
Obsolete in Canada and our jobbers are no help
 
The ones that go from the "T" down to the heater core,they have shielding on them and run behind the turbo.
Both are obsolete from the General in Canada
 
Most all of them are purosil hose with heat shielding over them. Most any good hose shop should carry the clue silicone PUROSIL hose, and what they call fireshield to go over it.
 
Do you know that you don't have to source part from GM always???
Yes, they have obsoleted a lot of the parts in our truck because it is available from other sources.

Just go to a hydraulic/racing shop (like Canadian Tire mentioned a lot of times or something like that) in your town in Canada and ask them for "Silicone Coolant hose". I am sure Gates, Goodyear or Dayco make or supply this type of hoses.
IIRC, it is a 3/4" or 5/8", you need to verify and measure the length.

The shield is just a heat shield but I suspect a good new silicone hose can probably withstand the heat.
Remember, the heat resistant silicone hose probably did not exist in the 90s.

Anyway, Amazon or Ebay (from different seller) sell those heat protectant/resistant sleeve too.

FYI, for the tee, we have used the brass PEX barb tee for 1" which fit 3/4" hoses very good. It will probably will outlast the truck. In the US, we buy those at Home Depot (a hardware store).
 
JMJNet said:
Do you know that you don't have to source part from GM always???
Yes, they have obsoleted a lot of the parts in our truck because it is available from other sources.

Just go to a hydraulic/racing shop (like Canadian Tire mentioned a lot of times or something like that) in your town in Canada and ask them for "Silicone Coolant hose". I am sure Gates, Goodyear or Dayco make or supply this type of hoses.
IIRC, it is a 3/4" or 5/8", you need to verify and measure the length.

The shield is just a heat shield but I suspect a good new silicone hose can probably withstand the heat.
Remember, the heat resistant silicone hose probably did not exist in the 90s.

Anyway, Amazon or Ebay (from different seller) sell those heat protectant/resistant sleeve too.

FYI, for the tee, we have used the brass PEX barb tee for 1" which fit 3/4" hoses very good. It will probably will outlast the truck. In the US, we buy those at Home Depot (a hardware store).
Click to expand...
Silicone hose has been around for a LONG time now, and was factory equipment for the diesels for the heater hoses in the engine bay near the front heater core, and running to the lines that went to the rear. GM did this because of the heat these areas see, but they also knew that the hose by itself wasn't enough and used heat shielding on it in addition to the silicone hose. If you replace them, then you need to at least do as much as GM did which WAS TO USE silicone hose WITH heat shielding on it.
 
The issue is the sharp 90 degree bend at the heater core
Thanks for the suggestions.
No aftermarket available either
 
Go on Ebay and search silicone heater hose elbow. I've seen them on there before, if I find the link again, I'll post it up.
 
THEFERMANATOR said:
Silicone hose has been around for a LONG time now, and was factory equipment for the diesels for the heater hoses in the engine bay near the front heater core, and running to the lines that went to the rear. GM did this because of the heat these areas see, but they also knew that the hose by itself wasn't enough and used heat shielding on it in addition to the silicone hose. If you replace them, then you need to at least do as much as GM did which WAS TO USE silicone hose WITH heat shielding on it.
Click to expand...
I used the silicone hose w/header wrap around it then insulated my down pipe along with turbo compressor turbine cover.
 
silicone hose and brass 90 degree barb fittings did the job ,as per THEFERMANATOR.
Thanks everyone for the input
 
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