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Radiator Hoses

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Old May 6, 2026 | 08:31 PM
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Radiator Hoses

Does anybody have good part numbers (factory or otherwise - whatever will work and fit properly) for the upper and lower (curved) radiator hoses?
1969 F-600 with 330HD.
Thanks.
 
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Old May 6, 2026 | 11:22 PM
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If you have the 330HD then your lower hose is a three-piece setup, with a short straight section, a metal intermediate section, and either a straight or curved lower section:




What I pulled out of my '73 w/361:




What I replaced it with (before I installed a Chinesium radiator and had to throw this away and start again). This was NAPA NBH 7244 (and my notes said that it's probably Gates 20424). It fit reasonably well but not perfect:



Note this will only work if you have a 330HD with a water pump that mounts to the timing cover, like this:



If you have a 330MD, the water pump stands off from the sheet metal timing cover and is completely different, as are (probably) the hoses. 330MD:



352, which has the same timing cover/water pump setup:




Once you confirm your engine, I can try to locate an upper hose part number for you.
 

Last edited by asavage; May 6, 2026 at 11:24 PM.
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Old May 8, 2026 | 12:13 AM
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Yes, I have the 330HD. And I have the 3-pc lower. I ended up putting a straight section of hose on both ends of the steel section, but I don't trust it to not blow off (probably won't, but I still don't trust it), and I think that it's putting unnecessary stress on the lower tank outlet because that short piece of straight hose really doesn't want to bend. Your NAPA hose looks to be a much better fit than what I'm running with right now.
Appreciate your help.
 
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Old May 8, 2026 | 11:15 AM
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There are (16) pages of radiator hoses in the MPC. MT vs AT, PS/no PS, and serial number ranges sometimes matter, as well as the year, but the FT engines are only spread across three pages, lol. I figure it's time to concatenate all the FT radiator hose on one page. Turns out, for your particular combo (1969, 330HD, F600) there's only one line that fits:



The upper is KM200 (molded hose, 1-3/4" x 20.0" long) aka C4TZ-8260-D. If you chose an (optional) flexible hose, that would be KC110 (1-3/4" x 11.0") . IDK why a flexible hose would be 9" shorter. The '●' preceding the KM200 indicates to use the flexible hose if the molded hose is not available.

The lower "pipe to engine" is KS4 (straight hose, 2" x 4") or bulk hose 51A-8333-C
The lower "radiator to pipe" is KM119 (molded hose, 2" x 12-1/4"? (119 is 11" + 9/8" ?)) aka C9PZ-8286-F replaced by DCPZ-8286-E, and cut at marked points 'A' & 'B' on the hose.

You'll want to double-check what I wrote against the source above, as I make misteaks.

The Motorcraft number decoding rules:
 

Last edited by asavage; May 8, 2026 at 11:18 AM.
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Old May 14, 2026 | 11:32 PM
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NAPA was able to get me the lower hose, but not the upper. I'll have to cut the lower hose for it to fit. Haven't tried it yet. Picked up the hose 3 or 4 days ago but just haven't had time to work on it. NAPA could not get the upper hose. I really don't like flexible hoses, they never seem to be as strong or last as long as a molded hose, but at this point, I may not have much of a choice. (They don't look good either!) Going to take the old upper and try one more time to match it up. If nothing works, then I guess I'll go with a flexible . Thanks for your help.
 
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Old May 15, 2026 | 12:01 AM
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You might have your NAPA order this in and take a look at it: NBH 7485 (usually Gates). That page has a picture of an intake manifold instead of a hose, and the listed dimensions are off, but . . . worth a try.

That NBH number is what you get when you search for the Ford number:
https://www.napaonline.com/en/search?text=C4TZ-8260-D


But on the actual product page . . . no Ford interchange listed. NAPA is pretty good about not making a fuss to order and send back, unless they have to pay freight to get it to them. If it comes from a DC, it doesn't cost the store anything to return it.

Running KM200 there takes me to the same page:


So odds are good.

Looking at the vintage Gates catalog from 2016 . . . there are a few numbers to check out:





O'Reilly's (regional chain FLAPS) carries all three of those Gates numbers, so I'm sure NAPA does also. Take a look at their pictures:

https://www.oreillyauto.com/detail/c...ose/gat0/20719
https://www.oreillyauto.com/detail/c...ose/gat0/20295
https://www.oreillyauto.com/detail/c...ose/gat0/20957


 

Last edited by asavage; May 15, 2026 at 12:03 AM.
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Old May 21, 2026 | 01:19 PM
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Finally!!! Got an upper hose! Went to a metal fab shop to see if they could bend a pipe for me. I was planning to set the upper up like the lower. They work with heavier stuff, so they couldn't help me there, but the boss and secretary where nice folks and the secretary googled the part numbers I had and came up with 20719. Same as one of the part numbers you sent me. So I ordered it and it worked.

In summary:
LOWER FORMED HOSE - NAPA 7458 (Trim to fit. I cut it off just behind one of the bends, leaving enough straight length to be safe. After installing, I found that I could have cut off probably another 1-1/4 to 1-1/2 inches. I left it as is since it was a pain to install and would be even harder to remove. I'll know better next time.)
UPPER RADIATOR HOSE - Gates 20719 (I trimmed about 1/2-in. off of the thermostat side to remove the hose kink).

Let's see if I can download some pictures. asavage, thanks for all your help.

Nope. Says file type not supported. Idk how to get pics off my phone and on here.



 
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