Stovebolt.com Forums The Shop Area The Engine Shop 1953 radiator questions

Yes, it's definitely a 9.

I thought they skipped the letter "I" so K would be October. Somewhere I saw that "M" was December.

Otto,
Unfortunately I have not located a Full Harrison radiator number chart. But I have read two things I found on-line that say your radiator is out of a car.
I have only read A-L is what Harrison used for date codes.
Todd

Thanks.

What makes you think car? Was that the 354 code? What kind of car?

That's weird because a guy on this forum has a 1946 truck with a radiator with a letter "M". It was ID'd as December by some radiator shop dude on the H.A.M.B. That message was 5+ years ago.

From a online search I saw 3115954 was. 42 to 46 Chevy passenger cars

That's cool. So it was made in late 1941 and installed in a Chevrolet car. I wonder if there are any real differences. I don't even know what the authentic radiator is supposed to look like. Maybe the filler neck is off-center? Mine is in the center.

Otto,
Not sure on the actual differences between truck vs. car original radiator. But here is a Truck Harrison.
It is off-center towards passenger side..See picture. Harrison 3118967.
And the drainplug is on passenger side. Looks like almost a 45 degree angle.

Ya , I just looked at mine. The cap is in the same place as that one, not dead center. The petcock is also in the same place but is sort of blocked by a metal splash shield.

I guess the splash pan is just bent.

Another data point but probably not on point for the 1/2 ton discussion: The radiator in my 51 3800 shows Harrison no. 3132039. I bought it from a wrecking yard along about 1975 and the yellow marking was "1954 ton-and a half." It has bigger tanks and a thicker core than the original but still has the relief in the bottom tank for the crank.

My radiator appears much taller than the one pictured in the OP's photo but it's the same height as the one it replaced so I would surmise that the car radiators were smaller. If the OP is going for originality, look for a new radiator support as the top bracket it missing and serves as a structural member. They are frequently removed to facilitate engine removal. It should at least be bolted back in.