https://minicityltd.com/
I'm surprised they're still around - I used to buy parts from them back in the late 60's for my first Mini Cooper S. I bought my Cosmic wheels and new interior from them......
For many years, Mini City was the ONLY source for Mini parts here in the US. Way before "Don's Mini Mania" (as it was first called) and Seven Enterprises came into existence. I remember having Mini City's yellow catalog and tearing off an order form from the back of the book, filling out my order and dropping it in the mail along with a money order, then waiting for a box of Mini parts and goodies to arrive perhaps a month later. A bold move back then was to make a very costly long distance phone call to Mini City and make an order that way.
Yes, I think the catalogs are still yellow, but I think they have a web page to buy from. I also remember mailing in an order - sight unseen - but I think I just sent a check.
I don't think I even had a MasterVisaDebt card then!
Really the only game in town(country) even though there was a BMC dealer in every town in the bay area. Most parts guys had not a clue about Minis. There were exceptions, Sunnyvale BMC had a very knowledgeable parts guy. Even then, it almost all had to be ordered as nothing was on hand unless it crossed over to a Midget. I think I still have an old catalog, but I did not start ordering until 1972 probably.
Didn't realize they were still around!
When I bought my '65 'S' in 1987 there was an old receipt on the dash from Mini City...so that's where I ordered everything from - the only place I knew.
They were so nice to a young kid that knew absolutely nothing...had their parts book, and they had my mom's credit card - a match made in heaven!
Still have their catalog somewhere around here. ❤️