The International 8200 front turn signal requires a 1156 bulb size while the rear turn signal uses a 1157 bulb size. The replacement chart covers 1992 through 1997 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 International 8200 uses the 1156 bulb for the front turn signal across all listed model years, 1992-1997.
The 1156 is a single-filament bulb operating at 12V and 21W, fitted with a BA15s bayonet base, and recognized under ANSI standards in the United States and Canada.
The rear turn signal on the International 8200 uses the 1157 bulb across the same 1992-1997 model year span.
The 1157 is a dual-filament bulb with a BAY15d bayonet base, rated at 12V with filaments drawing 21W and 5W respectively, also conforming to ANSI standards in the United States and Canada.
The BA15s base of the 1156 and the BAY15d base of the 1157 are physically distinct and not interchangeable, as the BAY15d base features offset pins to prevent incorrect installation of a single-filament bulb in a dual-filament socket.
The dual-filament design of the 1157 allows it to serve both turn signal and running light functions simultaneously through its two separate filaments, which is a common rear lighting arrangement in commercial vehicles.
Although both bulbs share a 12V operating voltage and a 21W high-intensity filament, the 1157 carries an additional 5W filament that the 1156 does not, making the two bulbs functionally distinct despite their surface similarities.