Peterbilt 200 front side marker bulbs use 194 size while rear side marker bulbs use 1816 and 97 sizes. The replacement chart covers vehicle production years spanning 1974 to 2000 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 Peterbilt 200 front side marker position uses the 194 bulb across all listed model years from 1993-2000, making it the most consistently specified bulb in this dataset.
The 194 is a T10 miniature wedge bulb rated at 12V and 3.78W, conforming to ANSI standards recognized in both the United States and Canada.
The wedge base design of the 194 means it is retained by friction rather than a locking mechanism, which distinguishes it from bayonet-style bulbs also present in these specifications.
The Peterbilt 200 rear side marker position uses the 1816 bulb for model years 1993-1997.
The 1816 is a T3.25 miniature wedge bulb rated at 12V and 4W, also conforming to ANSI standards for the US and Canadian markets.
Although both the 194 and 1816 share a wedge base construction and 12V operating voltage, they differ in wattage and physical size, meaning the two bulbs are not interchangeable despite their similar form factor.
The rear side marker position on the Peterbilt 200 City Delivery variant for model years 1974-1978 uses the 97 bulb, which operates at a significantly higher wattage of 13W compared to the 194 and 1816 bulbs specified elsewhere.
The 97 bulb uses a BA15s single-contact bayonet base, a fundamentally different mounting system from the wedge bases of the 194 and 1816, making cross-substitution between these bulb types mechanically incompatible.
The 97 is noted as a variant of the 1156 bulb family, though it carries its own distinct ANSI designation and wattage rating within that family.
All three bulb types specified for the Peterbilt 200, the 194, 1816, and 97, operate on a 12V electrical system and meet ANSI standards applicable to both the US and Canadian markets.