XJ Heater hoses

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michaelc291

Member
I am trying to find the moulded heater hoses for my 1994 lit XJ. My usual ports of call for things Jeep have drawn blanks and Mopar says discontinued. I am not sure I can get preformed bends and make them up myself in the local area.
For reference, they exit the bulkhead forwards from the heater matrix ( I don't think it has valves) then double back on themselves, go round the back of the rocker box then turn 90 deg to the water pump on the opposite side of the engine.
Sadly one failed the other day and I lost all the water on the test house floor. I was politely shown the door.
 

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A little hard for me to tell from the pics but what I did with my 1990 XJ was keep the hard pipe and use regular heater hose for the short flexible parts.
 
Thanks for the reply.

The only hard pipe I have are the two short stubs poking through the bulkhead (firewall) that your hoses fit onto. There is no water valve, so the water circulates all the time.
Sorry if the pics are not that clear but there is a lot of other stuff going on in that area which I why I marked them up to try to help.

The straight bits are no problem but it's all those twists and turns at the back of the engine. I can't find anyone who keeps a range of preformed rubber elbows and bends that I can simply join together like you would for an exhaust pipe.
Any help there would be welcome.
 

Happily the car passed its test yesterday with a cobbled together hose, so that's that for another 12 months, Of all the requests I have made no one has come up with any leads on new one piece pipes.
It is going to have to have ones made up with various elbows and bends. The trouble with doing that is just creates more opportunities for leaks.
I have to put two tee pieces into the pipes for the LPG conversion vapouriser and I'll see if there is any way to re-route the pipes in a straighter line to reduce the number of bends.
 
Thanks very much for the suggestion. They are quite close to what is needed. The problem is the cost, plus, by the time I have shipped them here to Spain the price will have doubled. I find this with RockAuto stuff all the time, so that rather prices them out of touch.
 

here in texas, i found them at the local autoparts stores online, oreillys, autozone, and advanced auto.


maybe you can get them through ebay from one of hte other countries nearby, or even japan or china ebays?
 
That's the best news yet. I have already checked Ebay in the UK, Spain and Germany but nothing is showing. Could you send me a link to each of the ads you have mentioned? I can then go in and check them out . Thank you.
Usually suppliers are willing to ship their goods (for a fee). Sadly though at this end (Spain) we get done for import duty and tax which effectively doubles the original asking price.
I get this regularly ordering stuff from Rock Auto.
 
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I have been trying to contact Mopar service to ask some questions and can't get past the first page and the email address they gave me does not work and I am tired of being run around in circles. I suspect it is picking up that I am not in the US, though that hasen't been a problem in the past. It seems they don't want you to contact them.
I have attached another pic and a sketch of what the hose should look like. This is a RHD car.
Can anyone else help by providing an email address for tech support that might work from Spain? It's at times like this I wish I had a VPN.
 

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your drawing looks like one i found on a site. let me search next break since i am at work. i know i saw that exact shape though
 
That does indeed look very close to what I'm after.. My set up does not have any valves or vacuum lines and the coolant flows through the core at all times.
I'll contact them for a chat tomorrow. Thank you for that.
 
superj said:
Are these it in amazon?


What a weird link it made. I tried again here:


Hmm, thats odd
Click to expand...
Thanks for this. Sadly they are not what I am looking for. This is a far more complex set up with crimped metal pipes.
My needs are much more basic, just plain rubber tube with preformed bends to wrap round the back of the block.

I came across Omix Ada yesterday for the first time who show something very close for a '94 XJ, but with a complex valve in the middle. I'll send them my sketch and see if I can just get the tube parts which I'm sure I can get to fit. Otherwise it becomes a very expensive exercise if I have to bin the valve.
Thanks everyone for reading and coming up with suggestions. Keep them coming. Much appreciated.
 

i found the part numbers and found the expensive replacements but cannot find the ones i thought i had previously seen. i even found right hand drive jeep parts sites but they don;t have those hoses listed. and your hose replacement question is on all the other jeep forums too, i have found.

here is the part numbers and i will keep looking. someone has them, i know they do, and i will find them. your line is specifically the return side, per the parts book drawings.

here is the part number conversation from another jeep forum:

"My original heater hoses are on the way out (on a UK, RHD 1996 XJ) and I'm having trouble finding replacements which route the same way as the OE equivalents.
From what I gather from the FSM the p/ns are 4637 938 (supply) and 5503 6801 (return). I guess US Postal RHD XJs have the same arrangement so wondered what you guys/gals do? I do know these hoses are longer than standard US hoses as they route to the right behind the engine block and run to the heater core which is on the back right of the engine bay (as you look at it)."
 
here is an ebay listing for the lines. they are used on all the xj right hand drive models, the right hand drive wrangler, and it looks like the right hand drive grand cherokee, too.

www.ebay.com

1991-2001 Jeep Cherokee XJ RHD ONLY Heater Hose Inlet Outlet Assembley Used OEM | eBay

<p dir="ltr" style="margin-top:0; margin-bottom:0;">The product is a used OEM heater hose inlet outlet assembly for 1991-2001 Jeep Cherokee XJ models with right-hand drive. The hose is made of reinforced rubber and is designed for placement in the engine compartment at the front of the vehicle...
www.ebay.com

i geuss i can verify sometime since i have a right hand drive wrangler
 

michaelc291 said:
Thanks for this. Sadly they are not what I am looking for. This is a far more complex set up with crimped metal pipes.
My needs are much more basic, just plain rubber tube with preformed bends to wrap round the back of the block.

I came across Omix Ada yesterday for the first time who show something very close for a '94 XJ, but with a complex valve in the middle. I'll send them my sketch and see if I can just get the tube parts which I'm sure I can get to fit. Otherwise it becomes a very expensive exercise if I have to bin the valve.
Thanks everyone for reading and coming up with suggestions. Keep them coming. Much appreciated.
Click to expand...


on that valve....

those are on the left hand drive jeep cherokees, grand cherokees, and wranglers. they get brittle with age and break when you try and move the hose around a bit to do anything on that side of the engine. i think that is why its hard to find the rhd hoses, since it doesn't seem to be used on the rhd jeeps. i was going to comment on that valve and possibly using the lhd hoses last night but i forgot while i was searching before bed.

reading through more forum posts, it seems everyone has gone to the silicon lines, or used pieced together lines clamped to bits of copper pipe
 
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