American LaFrance Condor high beam headlight bulbs use H4651 size while low beam headlight bulbs use H4652 or H4656 sizes. The replacement chart covers vehicle production years spanning 2007 to 2013 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 H4651, H4652, and H4656 bulb types are each ANSI-standardized sealed beam units used across the American LaFrance Condor's headlight system. ANSI standardization means these units conform to a fixed set of electrical and optical specifications recognized across the United States and Canada.
All three sealed beam types share a 4x6-inch rectangular form factor and operate at 12 volts. Because the light source is fused permanently within the reflector and lens assembly, the entire unit requires replacement rather than an internal bulb swap.
The high beam headlight position uses the H4651 across all model years from 2007-2013, making it the most consistently specified bulb type in these specifications.
The H4652 is described as a variant of the H4651. Despite sharing the same physical format and voltage rating, the two are distinct part numbers and are not confirmed as interchangeable within these specifications.
The low beam headlight position on the American LaFrance Condor uses the H4656 for the 2011-2012 model years, while the H4652 is specified for 2007-2010 and 2013. Substituting one for the other without verification of compatibility could result in incorrect fitment.
The shift from H4652 to H4656 in the 2011-2012 low beam position, followed by a return to H4652 in 2013, means that year-specific verification is particularly important when sourcing a low beam replacement unit for the Condor.