Upper Heater Hose
07-27-2010, 04:16 PM
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Year: 1999
Model: Cherokee
Engine: 4.0
Upper Heater Hose
Cant find an upper heater hose at any perts stores?? Is it just a regular peice of hose or is there a special name??
If its regular hose does anyone know what diameter??
If its regular hose does anyone know what diameter??
07-27-2010, 04:34 PM
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Year: 1998
Model: Cherokee
Engine: 4.0L HO
The heater hose that attaches to the t-stat housing is 3/4", the other is 5/8". They sell by the foot at the parts store, just measure how much u need. Personally, I wouldn't run either heater hose in the stock location - next to the valve cover. Valve trains run really hot and don't need a hot heater hose next to the valve cover. We just run our heater hoses over the a/c compressor and call it good.
07-27-2010, 04:38 PM
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Year: 1999
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07-27-2010, 04:50 PM
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Year: 1999
Model: Cherokee
Engine: 4.0
OK, so I looked in my service manual and it shows the hose from the t stat going to the lower heater core. is this correct??
as I bought it it has the t stat hose going to the upper heater core
as I bought it it has the t stat hose going to the upper heater core
07-27-2010, 07:54 PM
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Year: 1998
Model: Cherokee
Engine: 4.0L HO
The heater core has 2 different size nipples....one is 3/4" and one is 5/8". The 5/8" hose goes to the water pump and the 3/4" hose goes to the t-stat housing.
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