Product review (4 stars): product as expected, but no instructions.
exactly as expected. Threre were no instructions, so I did not notice that there are two high-temperature insulating sleeves. I installed the product using only one sleeve, which was how the prior replacement by an earlier repairman had been (incorrectly) installed.

The prior replacement had suffered overheating and burn-thru at one of the sides where the burner plugs in: This can only occur if there is extra electrical resistance where the burner meets the receptacle. Therefore, I carefully cleaned and polished the burner wire ends before re-installing the burner to avoid having a repeat of the problem. I notice that other reviews mention that this receptacle may buffer burn-thru, but it is not the fault of the receptacle design.