Heater Hose Assembly

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Apr 22, 2017 | 10:23 AM

#16

cruiser54

::CF Moderator::

Joined: Aug 2011

Posts: 43,971

Likes: 1,579

From: Prescott, Az

Year: 1990

Model: Cherokee (XJ)

Engine: 4.0

Quote:

Originally Posted by freegdr

Small 5/8s goes on small nipples. Larger 3/4 goes on larger nipples.

You just like typing "nipples".....

Apr 22, 2017 | 10:26 AM

#17

ElMartillo

Senior Member

Joined: Dec 2015

Posts: 935

Likes: 49

From: Nationwide, USA

Year: 89

Model: Cherokee

Engine: Renix 4.0

Quote:

Originally Posted by cruiser54

I'm gonna do a write up on this at some point. I will want to add the bulk hose info above.

Can somebody give me the hose size and which was routed where in regards to engine and heater core nipples?

On both my '89 and '96, the heater core hoses are top 3/4", bot 5/8".
Same with the tstat housings; upper near the temp sensor 3/4", lower has a hard line coming out and is the 5/8".

Apr 22, 2017 | 10:38 AM

#18

freegdr

CF Veteran

Joined: Mar 2010

Posts: 47,923

Likes: 38

From: Broward County Fl.

Year: 1989 xj sport 2dr

Model: Cherokee

Engine: 12 hole bosch Injectors

Quote:

Originally Posted by cruiser54

You just like typing "nipples".....

Apr 22, 2017 | 10:46 AM

#19

cruiser54

::CF Moderator::

Joined: Aug 2011

Posts: 43,971

Likes: 1,579

From: Prescott, Az

Year: 1990

Model: Cherokee (XJ)

Engine: 4.0

Quote:

Originally Posted by ElMartillo

On both my '89 and '96, the heater core hoses are top 3/4", bot 5/8".
Same with the tstat housings; upper near the temp sensor 3/4", lower has a hard line coming out and is the 5/8".

Added to my notes. Thanks.

Apr 22, 2017 | 01:50 PM

#20

BlueRidgeMark

CF Veteran

Joined: May 2012

Posts: 7,965

Likes: 964

From: Lost in the wilds of Virginia

Year: 1998 Classic (I'll get it running soon....) and 02 Grand

Model: Cherokee (XJ)

Engine: 4.0

Quote:

Originally Posted by cruiser54

Can somebody give me the hose size and which was routed where in regards to engine and heater core nipples?

Quote:

Originally Posted by freegdr

5 feet of 5/8s and 3/4 self explanatory when doing

Yeah, pretty much.

Quote:

Originally Posted by cruiser54

You just like typing "nipples".....

Busted!

Quote:

Originally Posted by ElMartillo

On both my '89 and '96, the heater core hoses are top 3/4", bot 5/8".
Same with the tstat housings; upper near the temp sensor 3/4", lower has a hard line coming out and is the 5/8".

Same on my 94 and 97. I suspect that's one thing that didn't change over the years.

Dec 14, 2020 | 06:16 PM

#21

Gene Delong

Junior Member

Joined: Jul 2020

Posts: 34

Likes: 1

Model: Cherokee (XJ)

sounds simple but do you know of a link that shows how? thanks . or maybe you can email me and quickly explain it. genedelong443@gmail.com
thanks again

Dec 14, 2020 | 06:34 PM

#22

Gene Delong

Junior Member

Joined: Jul 2020

Posts: 34

Likes: 1

Model: Cherokee (XJ)

I just looked and can see where the lines from the thermostat housing go but wouldn't you need a t to connect the resavour to one of the lines?

Dec 14, 2020 | 08:22 PM

#23

cruiser54

::CF Moderator::

Joined: Aug 2011

Posts: 43,971

Likes: 1,579

From: Prescott, Az

Year: 1990

Model: Cherokee (XJ)

Engine: 4.0

Quote:

Originally Posted by Gene Delong

I just looked and can see where the lines from the thermostat housing go but wouldn't you need a t to connect the resavour to one of the lines?

what year?

Dec 14, 2020 | 08:27 PM

#24

lawsoncl

CF Veteran

Joined: Dec 2017

Posts: 4,367

Likes: 1,215

Year: 1989

Model: Comanche (MJ)

Engine: 4.0

Good grief man, how many dead threads are you going to revive with the same question?

My suggestion is that if the radiator is questionable, replace it with the later model that has the traditional filler neck and cap. Run the lines straight to the heater core. Install an aftermarket overflow bottle.

Dec 14, 2020 | 08:35 PM

#25

BlueRidgeMark

CF Veteran

Joined: May 2012

Posts: 7,965

Likes: 964

From: Lost in the wilds of Virginia

Year: 1998 Classic (I'll get it running soon....) and 02 Grand

Model: Cherokee (XJ)

Engine: 4.0

Quote:

Originally Posted by Gene Delong

sounds simple but do you know of a link that shows how? thanks . or maybe you can email me and quickly explain it. genedelong443@gmail.com
thanks again

Bad idea. Never post your email address like that on a public forum. Spambots.

Well, if you like being inundated with spam, go for it.

Dec 15, 2020 | 08:10 AM

#26

318SixPack

CF Veteran

Joined: Aug 2019

Posts: 1,601

Likes: 226

From: East Tennessee

Year: 1996

Model: Cherokee (XJ)

Engine: 242 cui

Are these the right store bought fancy pants heater hoses?

CONTINENTAL 63995 Molded; Re-use OEM Quick Connects
Heater Core Outlet To Engine; w/ Left Hand Drive
https://www.rockauto.com/en/moreinfo...378&cc=1363384

and

CONTINENTAL 63996 Molded; Cut-to-Fit
Heater Core Inlet To Engine; w/ Left Hand Drive
https://www.rockauto.com/en/moreinfo...744&cc=1363384