Product review (5 stars): Worked For Me, So Far
As other posted reviews indicated, this seems to be the right part. I will come back later if the fix is not durable, but for now the fridge works again. I learned the number actually printed on the part has little to do with the matter. What is important is the model of the compressor, not the number printed on the part and not the brand/model number of your refrigerator. This replacement part looks identical to the old part, except it has an additional blade-prong. I just ignored the extra prong and plugged in only the blade-prong that was originally plugged in on the failed part. the fridge came on instantly and cooled down to 40 degrees F., making all the same noises it used to make before it broke. For the record:
Refrigerator: Magic Chef MCBR445S1
Compressor: LG (Brand) NSA30LACG
Description: Thermistor Assembly, PTC
Spec: QP2-6R8MD2 #250 STARSHUAIERR PBT
Part Number: 6749C-0014E REPLACES 6748C-0004D