Yes that sounds like a CD4E transmission. It was shared with the 4 Cyl Mazda 626 and some earlier Ford Escapes. It was not quite enough tranny for the fairly heavy 626, it didn't have a real good cooling setup either. You may want to look into an aftermarket fluid cooler if you do have it rebuilt. Google Mazda 626 CD4E if you want to read up on them.
2000 Mazda 626 ES V-6 135K PP 5W30,P1 Filter
1995 Civic EX 251K QSUD 5W30 Mann Filter
1994 Toyota Camry 198K QSGB 5W30, Mann Filter