Some other hondas (from Hahonda's list of axle sizes, steering bearings, and fork tube sizes) that also used 33mm forks, maybe some of them use the same or compatible caps:
33 Honda CR-80R (84)
33 Honda CR-80R (85-86)
33 Honda TLR-200 (86-87) "Reflex"
33 Honda XL-200R (83-84)
33 Honda CMX-250C (85-87, 96-04)
33 Honda CMX-250C2 (99-00)
33 Honda TL-250K "Trials 250" (75-76)
33 Honda CB-350F/F1/G (72-74)
33 Honda CL-350 "Scrambler 350" (72-73)
33 Honda CB-360/T (75-76), CL-360K (74), CJ-360T (76-77)
33 Honda CJ-360T (76-77)
33 Honda CB-400A "Hondamatic" (78
33 Honda CB-400A "Hondamatic" (78
33 Honda CB-400T I & T II "Hawk" (78-79)
33 Honda CB-400T (80 From 2004662 - 81)
33 Honda CB-400T (80 To 2004661)
33 Honda CM-400A "Hondamatic" (79-81)
33 Honda CM-400T (79-81)
33 Honda CM-400E (80-81)
33 Honda CM-400T (79-80 To 2114344)
33 Honda CB-450SC (82-86)
33 Honda CM-450A/E (82-83)
33 Honda CX-500 (78-79), CX-500C (79), CX-500D (79)
33 Honda CX-500C "Custom" (80)
33 Honda CX-500C "Custom" (80)