difference between a TD-24u an a TD-23u distributor

hello , G2ic just wondering what the difference between these to two distributors i found a great deal on Rrywire.com on a distributor it said “TD-23u is a OBD0 B18a Distributor made for 90-91 Acura Integra” before i order this part i want to know if this distributor will work on my DA.
info on my car
91 integra gs
engine B18a
distributor type "TD-24u
transmission: auto -.-
miles: 123k
oil leaking threw distributor cap

recent fixes
had the valve cover gasket put last year and o ring on the distributor to maybe try to fix the oil leak problem but it didnt so i aiming for a new one thus my question on two types on distributor also maybe fixes my problem when i go to start the car it clicks but doesnt turn over after two trys it back up and runs fine, sometimes it doesnt do that and starts right back up thanks for reading these all help will be helpful :slight_smile:

https://www.google.com/search?q=TD-24u
1st page of results has some from hondatech and from g2ic.

thanks @Malformed :slight_smile: