hello and good day everybody. going to be changing the coolant and both radiator hoses on my 2002 trailblazer soon. figured while I was at it I should change the thermostat. problem is looking at Rock auto I get conflicting pictures of what the oem and afternmarket version look like.would like to stay with the acdelco brand if possible but it looks a lot shorter without the gooseneck bend that I have seen by other manufacturers. they list the part number as # 1511006 and it appears to replace the folloing previous models {#12572988, 12602913, 12620112, 12T86E, 1510572} is that a correct assumption ? thanks for any advice you all may have.
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