Plymouth Fury II front and rear turn signal bulbs utilize 1034NA and 1157 bulb sizes depending on location and model variation. The replacement chart covers 1965 through 1974 production years 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 Plymouth Fury II uses three bulb types across its front and rear turn signal positions: 1034NA, 1157, and 1034, all of which are ANSI-standardized dual-filament bulbs rated at 12V and sharing the BAY15d bayonet base.
The BAY15d bayonet base is a two-pin offset base design that physically prevents incorrect bulb orientation during installation, a common feature among dual-filament automotive bulbs of this era.
The 1034NA and 1034 are both variants of the 1157, meaning they share the same base type and 21/5W filament ratings, with the 1157 itself also rated at 21W/5W across its two filaments.
The distinguishing characteristic of the 1034NA is its natural amber glass envelope, which produces an amber output without requiring an amber lens, unlike the clear-glassed 1034 and 1157.
For the Plymouth Fury II front turn signal, the 1034NA was specified for 1965-1970 and again for 1973-1974, while the 1157 was specified for 1971-1972.
The front turn signal fitment for 1971-1972 uses the 1157 rather than the 1034NA, which represents a notable difference from the surrounding model years and indicates these two years require a clear-glassed bulb rather than an amber one.
For the rear turn signal, the 1034 was specified for 1965-1970, while the 1157 replaced it for 1971-1974.
Although the 1034, 1034NA, and 1157 share the same BAY15d base and similar wattage ratings, substituting one for another across positions may affect light color output, since the 1034NA produces amber light through its glass while the 1034 and 1157 rely on the lens for color filtering.