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CNKS
02-16-2004 19:10:57
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Re: Changes in the H Farmall in reply to Curious, 02-15-2004 19:41:28
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The posts below are basically correct. I own a 41 H and a 53 stage 2 Super H, and drove a 47 H as a kid. The changes in the original H were minimal after the 1st couple of years. One thing not mentioned below is that the 39's (some if not all) had 36 inch tires. Many of the wartime models were sold with steel wheels because of the rubber shortage. The seat was changed at SN 15968 (early 1940), in addition the seat with the large spring became available at the same serial number. More coil spring seats were sold in the later years. A non-factory seat, the "Monroe" seat was common, also, it had the shock absorber behind, rather than in front of the spring. As mentioned below, gasoline, kerosene and distillate engines were available throughout production. Most tractors were equipped with magnetos thru the mid-late forties, distributers were more common on the later models, but both systems were available throughout production. Many of the early 40's were sold without starter and lights, but starter and lights were available from the beginning. At SN 391357 disk brakes (the same one as are on the Super H) became standard. Not many equipped this way as the last H serial is 391730. An earlier type of disk brake (made by Lambert, I believe) was available, either as a factory option or a retrofit, throughout production. The vast majority of H's had band brakes. Super H production began in early 1953 after about 1200 H's were produced in 1953 (391230 H's were built from 1939-1953 making the H the best selling single model of any IH tractor). The Super H had a 164 cu in engine compared to the H's 152, with an increase from about 25 hp to 29. The other major difference were faster 3rd and 4th gears, although the H could also be had with a faster 4th gear. THe Super H had a carburator similar to the one on the M. The stage 2 Super H added live hydraulics, with the hyd reservoir under the gas tank, necessitating that the battery be moved under the seat. The starter was also moved. The Super H also had sealed beam lights. There were several other differences such as location of the starter switch, etc. There were slightly less than 29000 Super H's produced of which about 10000 were stage 2's. The Super H then evolved into the 300/350/460, beginning in late 1954.
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