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Just so both seller and buyer have correct info, 407738 is a normally closed heater control valve with the large threads that fits 1971-72 Cutlass only. It does not fit Toro and does not fit 73-up cars. The 71-up Toro and full size used a normally open valve.
To further muddy the water, the box has group 9.795. That shows the first number changed to 411822 and yes is what Joes page shows but adds 75 A B C E. Then the books up to 75 have it changed to 411823. That has added applications of 73 X w AC, and 73-75 A B C E. So shoot me emails for photos.