The International 9700 front turn signal bulb operates with a 1156 size, while the rear turn signal bulb uses a 1157 size. The replacement chart covers vehicle production spanning 1989 to 1996.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
The International 9700 uses the 1156 bulb for the front turn signal across all listed model years, spanning 1989-1996.
The 1156 is a single-filament bulb operating at 12V and 21W, built to the ANSI standard recognized in both the United States and Canada.
Its base type is the BA15s bayonet, a single-contact design where the "s" denotes a single pin, distinguishing it from visually similar bases with different pin configurations.
The rear turn signal on the International 9700 uses the 1157 bulb across the same 1989-1996 model year range.
The 1157 is a dual-filament bulb rated at 12V, with one filament drawing 21W and a second drawing 5W, allowing it to serve both a bright signaling function and a lower-intensity running or parking light function within a single housing.
The 1157 uses a BAY15d bayonet base, which features two offset pins at different heights. This offset prevents the bulb from being seated incorrectly, ensuring each filament connects to its intended circuit.
Although the 1156 and 1157 share the same 12V operating voltage and the same 21W primary filament wattage, they are not interchangeable. The 1156 has a single-contact BA15s base, while the 1157 has a dual-contact BAY15d base with offset pins.
The front and rear positions on the International 9700 therefore require two distinct bulb types, with the single-filament 1156 at the front and the dual-filament 1157 at the rear.
Both the 1156 and 1157 conform to ANSI standards, meaning their physical and electrical specifications are standardized across manufacturers producing bulbs under those designations in the United States and Canada.