If my radiator neck needs to be replaced, can I tape the hose temporarily?

YES, if the neck on top of the radiator is cracked or broken,you need a radiator,it's PLASTIC! You can't just order a neck,because they don't sell that because it is part of the plastic radiator. I think someone is confused on this because that shop can not order a neck for any radiator? Are you sure that's what the shop said,or is it the "thermostat housing/water inlet/outlet" that is broken? AND NO,you can't tape it!

Yes, the radiator neck on the Lexus frequently wears out and needs to be replaced. I watched YouTube videos to see how to replace it and after the buying the part on Amazon, replaced it in under an hour. To find the video, I searched Google using these 4 words:Lexus Radiator Neck Video - and then watched how to remove/replace just the neck. On Amazon I searched using these 3 words: Lexus Radiator Neck - the part was just $15 in 2022