The Volvo 264 front turn signal requires either a 1156 or 1157NA bulb size, while the rear turn signal uses a 1156 bulb size. The replacement chart covers 1976 through 1982 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 1156 is a single-filament bulb operating at 12V and 21W, fitted with a BA15s bayonet base. It follows the ANSI standard applicable to the US and Canadian markets.
The 1157NA is a dual-filament bulb operating at 12V with filaments rated at 21W and 5W respectively. It uses a BAY15d bayonet base and features natural amber glass, also conforming to the ANSI standard for US and Canadian markets.
The BAY15d base used by the 1157NA has offset pins, which prevents it from being inserted into a BA15s socket. This means the 1157NA and 1156 are not interchangeable despite sharing a bayonet-style base.
The Volvo 264 front turn signal uses the 1156 across the 1976-1977 and 1980-1982 model years, making it the predominant front turn signal bulb across the production run covered by these specifications.
The 1157NA natural amber glass designation indicates the bulb produces an amber output without relying on a tinted lens or socket filter, which is a relevant fitment consideration when the housing uses a clear lens.
The Volvo 264 front turn signal for the 1978-1979 model years specifies the 1157NA, a dual-filament bulb, rather than the single-filament 1156 used in surrounding years. This represents a distinct socket and wiring requirement for those two model years.
The rear turn signal on the Volvo 264 uses the 1156 uniformly across all model years from 1976-1982, with no variation across the production span covered by these specifications.
Because the front turn signal socket for 1978-1979 is designed for the dual-filament 1157NA with its BAY15d base, installing a single-filament 1156 with a BA15s base in those positions is not a compatible substitution.