Mitsubishi Fuso FE-HD front turn signal bulb size 1156 and rear turn signal bulb size P21W are specified in this replacement chart. The chart covers 1996 to 1998 production years 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 Mitsubishi Fuso FE-HD uses two distinct turn signal bulb types across its front and rear positions for the 1996-1998 model years: the 1156 at the front and the P21W at the rear.
The 1156 is an ANSI-standard bulb used in the United States and Canada. It operates on 12 volts and draws 21 watts through a single filament.
The P21W is an ECE-standard bulb used in European and worldwide markets. It also operates on 12 volts at 21 watts through a single filament.
Both the 1156 and P21W share the BA15s bayonet base, a single-contact base type identified by a 15mm collar and one locating pin.
Despite sharing identical base geometry, voltage, and wattage ratings, the 1156 and P21W are governed by different regional standards and are not interchangeable without confirming regulatory compliance for the intended market.
The shared BA15s base between the two bulb types means physical fitment is technically possible in either socket, making the regional standard distinction a critical factor in correct part selection for the FE-HD.
The single-filament design of both bulbs is consistent with a dedicated turn signal function, as dual-filament bulbs are typically reserved for combined stop and turn signal applications.