Radiator Hoses

timkins · January 16, 2009, 03:07:53 PM

I am in the process of replacing the motor in my 32 Ford Sedan. It is a 1978 350 Chev with the LH dipstick. I am using an older Walker Radiator with a Center inlet and a RH lower outlet. I need the parts numbers for the hoses so I can give them to the parts store so they can be replaced. All of the hoses ar 1 1/2" ID. I have posted a picture to help understand what I am in need of. Any body have the numbers for the hoses?

phat rat · January 16, 2009, 03:32:20 PM

Do you have a friendly parts store that you frequent? If so and they will let you, take your hoses with you to their back room and start looking at hoses. It's possible that what you have may have been cut down from something much larger. Then when you find what fits write the part number down and put it where you won't forget so that you have it next time.

Deuce · January 16, 2009, 05:09:30 PM

Your hoses LOOK a lot like mine ... I use a Gates #20225 and a Gates #20046. I do have to trim them down for length.

41woodie · January 17, 2009, 02:27:58 PM

Quote from: "Deuce"

Your hoses LOOK a lot like mine ... I use a Gates #20225 and a Gates #20046. I do have to trim them down for length.

Is the 20225 the lower hose?

wayne petty · January 17, 2009, 03:40:54 PM

a matching molded hoses tip... many name brands of hoses have tiny imprints along the hose of various numbers... with those numbers most good parts people can match things up... and i am not talking about the label... examine the hoses close.. you might be able to see the factory numbers that are pressed into the rubber..

not all brands of hoses have it... but it has helped me in the past...

timkins · January 17, 2009, 03:55:19 PM

Quote from: "wayne petty"a matching molded hoses tip... many name brands of hoses have tiny imprints along the hose of various numbers... with those numbers most good parts people can match things up... and i am not talking about the label... examine the hoses close.. you might be able to see the factory numbers that are pressed into the rubber..

not all brands of hoses have it... but it has helped me in the past...

I did what a lot of people have suggested and spent nearly 2 hrs looking at the hoses in the local parts store with no luck. I showed the parts man the stream of numbers on both hoses and they said they were insignificant. The number stream on the upper hose is ZCM 0249 02 EBP D1 80MH46 The number stream on the bottom hose is 4F03 EBP D1 80MH70 ZMD 7544. If anybody can decipher that it would be greatly appreciated.

zzford · January 17, 2009, 04:12:14 PM

If you can get your hand on a Goodyear belts and hose catalog, there are pictures and dimensions of molded hoses.

Deuce · January 17, 2009, 08:18:54 PM

Quote from: "41woodie"

Is the 20225 the lower hose?

Yes ...

Topsterguy · January 20, 2009, 01:24:26 AM

Not wanting to confuse the issue any more but on my 32 with the same rad etc I have the upper as a Gates #20504 and the lower as a Gates # 20475, and I had to trim the lower one a bit. Hope that helps!

wayne petty · January 20, 2009, 04:22:50 AM

i found the pdf file of the gates hose interchange..

here are a few pictures.... but gates and other companys measure the hose from end to end going the long way... \\

so i am guestimating.. but i should be close... the uppers will need to be trimmed to fit...

wayne petty · January 20, 2009, 04:37:29 AM

these hoses are what deuce is using.. they are inch and 3/4 id...

so you might want to remeasure the outlets... and the long way along the hose...

best of luck...

i knew that i had the catalog saved.. but it was hectic around here the last few days... so i stayed up with craig ferguson and looked up a few hoses..

Deuce · January 20, 2009, 08:04:09 AM

On my bottom hose, as it goes to the Walker radiator ... I did buy a rubber sleeve ... that Gates makes to have a better fit. I do not have the number ... but my parts guy at Car Quest had it in stock. The sleeve is just long enough to slip over the outlet and cover it.

.

timkins · January 22, 2009, 01:00:49 PM

Just an update on my hose search. I finally purchased 2 Gates hoses, parts numbers 20046 and 20475, I then bought 3 Gates number 26391 1.75 to 1.50 reducers. The upper hose did not need to be shortened it fit perfect. The Lower hose needed to be trimmed quite a bit BUT they are much nicer looking than what was on there previously. Thanks to the members here that helped with the hose numbers.

Canuck · January 23, 2009, 01:03:12 AM

Along a similar vein, what is the tolerances plus or minus of the fit of a hose to rad or engine? Most of the hose specs seem to jump from 1.5 to 1.75 ID. The hose adapters that I see listed by Gates or Summit jump from 1.25 to 1.5 to 1.75.

My water pump has an OD of 1.625 (ridges 1.725) (stock hose is 1.5) and rad lower is 1.63.

The engine upper outlet is 1.575 (ridges 1.63) (stock hose is 1.5) and rad upper is Upper 1.44.

This combo is a Buick Nailhead and a US Radiator rad.

Will a 1.75 hose compress enough to seal effectively on the rads 1.63 outlet for a lower hose or will it streatch enough to use a 1.5 to 1.75 adapter? :?:

Will a 1.5 hose seal on the rads 1.44 upper connection? :?: