International 4600 front side marker bulbs use 67 and 1895 bulb sizes, while rear side marker bulbs use 67 size. The replacement chart covers 1992 to 1995 vehicle production years with corresponding bulb size specifications.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
The International 4600 uses two distinct bulb types across its front and rear side marker positions for the 1992-1995 model years: the 67 and the 1895.
The 67 bulb is an ANSI-standard single-filament type with a BA15s bayonet base, rated at 12V and 8W. It is a lower-wattage variant of the more widely known 1156 bulb.
The 1895 bulb is an ANSI-standard miniature wedge type in a T5 form factor, rated at 12V and 0.9W, making it significantly lower in wattage than the 67.
The 67 bulb is the dominant fitment across the side marker positions of the International 4600, appearing in both front and rear locations for 1992, 1994, and 1995.
The rear side marker position uses the 67 bulb consistently across all four model years covered in the specifications: 1992-1995.
The front side marker position for the 1993 International 4600 specifies the 1895 miniature wedge bulb rather than the 67 bayonet-base bulb used in all other listed front side marker years.
Because the 67 uses a BA15s bayonet base and the 1895 uses a wedge base, the two bulb types are not physically interchangeable despite both operating at 12V.
The wattage difference between the 67 (8W) and the 1895 (0.9W) is substantial, and substituting one for the other would produce a significant difference in light output even if a physical adapter were used.