Subaru Loyale front and rear turn signal bulbs utilize a 1156 bulb size for replacement applications. The replacement chart covers 1990 to 1994 vehicle production years with corresponding bulb specifications.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
The 1156 bulb is the sole turn signal bulb type specified for the Subaru Loyale across both front and rear positions for the 1990-1994 model years.
The 1156 is a single-filament bulb, meaning it is wired to perform one lighting function rather than sharing a filament for multiple functions such as braking and signaling simultaneously.
The 1156 operates on a 12-volt electrical system and draws 21 watts, which is consistent with standard automotive incandescent turn signal applications.
The 1156 uses a BA15s bayonet base, a single-contact fitting where the bulb is inserted and rotated to lock into place within the socket.
The 1156 conforms to ANSI standards applicable in the United States and Canada, indicating it meets a defined set of dimensional and performance specifications recognized across North American markets.
Because the same bulb type is specified for both the front and rear turn signal positions on the Subaru Loyale, a single bulb part number serves all four turn signal sockets on the vehicle.
The BA15s base of the 1156 is not interchangeable with the BA15d base found on dual-contact bayonet bulbs such as the 1157, despite the two bases sharing a similar physical profile. Substituting a dual-contact bulb in a single-contact socket would result in improper fitment.