The Yugo GV uses the H6054 bulb size for both high beam and low beam headlights across all listed model years, 1986-1992.
The H6054 is an ANSI-standard sealed beam unit recognized in the United States and Canada, operating at 12 volts.
Sealed beam units such as the H6054 house the filament, reflector, and lens within a single fused glass assembly, meaning the entire unit is replaced rather than an internal bulb.
The H6054 follows a 5x7-inch rectangular form factor, which is a standardized size shared across many vehicle applications of that era, making cross-brand physical compatibility possible in some cases.
Because the H6054 serves both the high beam and low beam positions on the Yugo GV, the vehicle uses a dual-filament or separate-unit configuration rather than a projector or reflector housing designed for single-function bulbs.
The ANSI standardization of the H6054 means that any compliant unit from different manufacturers should meet the same dimensional and electrical specifications, provided the 12V rating is matched.