 Howdy,Well it would appear, that I have an early radiator in my 49 H, from the info I recieved from my earlier post. I have seen some pictures of the late winged pressure caps, they look to have tabs on the outer part of the cap that would grip around the outmost part of the filler neck. The early non-pressure type ,seems to have tabs that would grip the inside of the filler neck, like what is left of the one on my H, also as someone mentioned, the gas cap will fit and tighten up on the filler neck, indicating the earlier non pressure radiator. So now I have a couple new questions; From the enclosed picture,the radiator has a tube coming from the filler neck down to the bottom of the radiator, is this proper or normal for a non pressure system? One of the guys that responded to my prior post mentioned an overflow pipe coming out of the neck,but I was not clear on which system used it.Second, Should I have a thermostat to make the engine run in the run zone of the temp gauge? The gauge barely moves off cold even after running for an hour or more. Last, I have seen radiator caps referred to being used on short, or long filler necks, do H's have both? Can you tell from the picture if this is long or short. Sorry about all these long winded questions, it seems this tractor has parts from early and late tractors, I'm trying to get it all closer to 49 vintage if possible. Thanks again....Tom
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