Radiator Hoses
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.
Appreciate your help.
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.
. Thanks for your help.
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; Today at 12:03 AM.






