Volvo S90 Tail Light Bulb Size

The Volvo S90 tail light requires H21W and 67 bulb sizes for the specific lighting components located at the rear of the vehicle. Data for the provided bulb sizes covers the range from 1997 to 2024.

The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.

Bulb Size by Year Range

Years	Bulb Size
2023-2024	H21W
2020-2021	H21W
1997-1998	67

Bulb Specifications

Description	Bulb Size
ECE standard (Europe & worldwide). Single-filament signalling bulb with BAY9s base. 12V, 21W.	H21W
ANSI standard (US & Canada). Single-filament bulb with BA15s bayonet base. Lower wattage variant of 1156. 12V, 8W.	67

Other Locations

Additional Notes

The H21W is the tail light bulb type used in the Volvo S90 across the 2020-2021 and 2023-2024 model years. It operates on a 12V circuit and draws 21W, making it a single-filament signalling bulb built to ECE standards, which govern lighting equipment across Europe and much of the wider international market.
The H21W uses a BAY9s base, a bayonet-type fitting with offset pins. This base configuration is specific to the H21W and is not shared with other common automotive bulb types, which has direct implications for substitution attempts.
The bulb type found in the 1997-1998 S90 is the 67, an ANSI-standard single-filament bulb rated at 12V and 8W. ANSI standards apply primarily to the United States and Canadian markets.
The 67 bulb uses a BA15s bayonet base, a single-contact fitting with symmetrically placed pins. While this base type is shared with several other bulb families, the 67 is a lower-wattage variant of the 1156, drawing 8W compared to the 1156's 26.9W. The two are not interchangeable despite sharing the same base type.
The H21W and the 67 bulb operate on the same 12V supply voltage, but their wattage ratings, base types, and governing standards differ entirely. Fitment between the two model generations is not interchangeable.