International COF5870 Paystar Turn Signal Bulb Size
International COF5870 Paystar front turn signal bulb uses 199 size while rear turn signal bulb uses 198 size. Replacement chart covers 1985 to 1988 production years with bulb specifications.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
The International COF5870 Paystar uses the 199 bulb for the front turn signal across the 1985-1988 model years.
The 199 bulb follows the ANSI standard recognized in both the United States and Canada, operating at 12 volts and 21 watts with a single filament.
The 199 bulb uses a BA15s bayonet base, which is a single-contact bayonet fitting, and is classified as a variant of the widely used 1156 bulb type.
The rear turn signal on the COF5870 Paystar uses the 198 bulb across the same 1985-1988 model years.
The 198 bulb is a T5 miniature wedge type, also conforming to ANSI standards for the US and Canadian markets, and operates at 12 volts and 2 watts.
The front and rear turn signal positions on this vehicle use distinctly different bulb types, with the front drawing significantly more wattage than the rear, reflecting different optical and signaling requirements for each position.
The BA15s base of the 199 bulb is not interchangeable with the wedge base of the 198 bulb, as the two types use fundamentally different mounting and contact mechanisms.