I'm not sure what the "L" means, but it should be identical to this:
https://www.universalcycles.com/shop...8&category=740
I have built wheels and ridden with Shimano hubs for many years. The only malfunctions that I've had were caused by my own mechanical malpractice. If this is for a "spare" wheel, I will bet that you will hand it down to your grandchildren.