The Honda Wagovan brake light utilizes bulb size 2057 and bulb size 1157 for the lighting system. Data for the specified components covers the period from 1984 through 1987.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
The Honda Wagovan brake light specifications reference three bulb types: the 2057, the 1157, and the 921.
Both the 2057 and 1157 are dual-filament bulbs sharing the BAY15d bayonet base, which is a two-pin offset base that locks into the socket with a twist.
The 2057 operates at 12V with a 26.9W high filament and an 8W low filament, while the 1157 operates at 12V with a 21W high filament and a 5W low filament, making the 2057 the higher-output variant of the two.
The 1986-1987 Honda Wagovan brake lights use the 2057 bulb, whereas the 1984 model uses the 1157.
Although the 2057 and 1157 share the same BAY15d base and are physically interchangeable in many sockets, the difference in wattage ratings means the two types are not electrically equivalent replacements for one another.
The 921 is a single-filament wedge-type bulb rated at 12V and 16W, fitting into a T15 wedge socket without a separate locking base.
The center high mount stop light on the 1986-1987 Wagovan uses the 921 bulb, a separate specification from the main brake light position on those same model years.
All three bulb types conform to ANSI standards applicable in both the United States and Canada.