Just replaced the oxygen sensor, new Bosch number is 11037. Delco batteries: On their home page they list batteries for the DeLorean, 3 group 74 batteries: 70 5yr, 74 6yr and 78BT 6yr. Interstate also has a home page, they don't specify DeLorean but have group 74 batteries and a lot of others that will fit. My unit has an Interstate battery, about a year and a half old, it is not sealed like the Delcos but I pulled the caps and the water level looked ok so may also require little if any maintenance. BTW if you go on the net and do a search, there's a good article on Delco batteries and why they're better and last longer, title is something like "The awful truth about Delco batteries." I think I was using google and search was just 'delco batteries' and it was the first listing. It's a good read if you want to take the time. Research continues! Les