This is a genuine BMW cover positive battery terminal, part number 61 13 6 916 762. The number stamped on the part is 61136916762; BMW's catalog files it under the short number 6916762. You will find it on our Electrical shelf, under Plug connection, terminal.
It fits the E46 sedan, coupe and touring (316i, 316i 1.6, 316i 1.9 and 318i, 1997–2004), with the M43, N40, N42, N45 or N46 engines.
BMW draws it on the Battery Cable(battery Front) (61_1107) diagram. It weighs about 16 g (under 0.1 lb).
We have not had one on the shelf yet. Request it and we will tell you when one comes off a car.