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99 ex

Old Dec 15, 2017
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99 ex

I'm replacing the radiator on my son's EX Coupe, D168Y engine. The replacement Denso radiator has stubs for the ATF lines. The stub measures 10mm, or 0.39in. Will 3/8 ATF hose from NAPA fit?

If, Ezone (dealer mechanic) replies he could probably tell you. I don't know myself but, your local Honda dealer's parts department should be able to provide that info if you call them. Another concern besides size is correct pitch.

Last edited by Wankenstein; Dec 15, 2017 at 12:46 PM.
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Old Dec 15, 2017
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Re: 99 ex

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I think it's going to be a standard 11/32" ATF and PS hose



Or you could.....
Take an original cooler line to the store and match it up,
take the new radiator to the store and see what size hose fits the nipples
buy a couple inches of each size choice to take home and test fit

but it MUST be compatible with ATF
Don't forget hose clamps
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Old Dec 15, 2017
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Re: 99 ex

Originally Posted by ezone
.
.
.


I think it's going to be a standard 11/32" ATF and PS hose


Or you could.....
Take an original cooler line to the store and match it up,
take the new radiator to the store and see what size hose fits the nipples
buy a couple inches of each size choice to take home and test fit

but it MUST be compatible with ATF
Don't forget hose clamps
thanks. The car isn't at my house, so i dont have a feel for length, would 4 feet be enough? I'm assuming its about 1 foot on each side and the hose goes into a metal line.
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Old Dec 15, 2017
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Re: 99 ex

Are the original trans cooler hoses too bad to reuse?

I have no idea about lengths, it's been a long time since I saw a car that old.
Parts catalog shows 210mm and 250mm for the pre-formed original hoses so 4 feet should be more than plenty
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