Peterbilt 362 front side marker bulbs use 194 size while rear side marker bulbs use 1816 size. The replacement chart covers vehicle production spanning 1986 to 2006 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 362 uses the 194 bulb for the front side marker position across all listed model years from 1986-2006, making it the most consistently specified bulb in these fitment records.
The 194 is an ANSI-standard miniature wedge bulb with a T10 envelope, rated at 12V and 3.78W, and is recognized in both the US and Canada.
The T10 designation refers to the bulb's tubular glass envelope, with the number indicating its width in eighths of an inch, placing it in the smaller end of the miniature wedge category.
The rear side marker position on the Peterbilt 362 uses the 1816 bulb for model years 1986-1997.
The 1816 is also an ANSI-standard miniature wedge bulb, though it carries a T3.25 envelope designation, rated at 12V and 4W, and is likewise recognized in both the US and Canada.
Although both the 194 and 1816 are miniature wedge-base bulbs operating at 12V, they differ in envelope size and wattage, which means they are not interchangeable despite sharing a base style.
The T10 envelope of the 194 is physically larger than the T3.25 envelope of the 1816, a distinction that affects housing fitment even when the wedge base appears similar.
The front and rear side marker positions on the Peterbilt 362 require different bulb sizes, and substituting one for the other would result in an incorrect fitment for either position.