Honda Accord Trunk Bulb Size

The Honda Accord trunk bulb specifications include 3 distinct bulb sizes: 12961, 168, and 6428, with each size corresponding to particular model generations of this vehicle. The replacement chart covers data spanning from 1976 through 2021, detailing which bulb size applies to each production year.

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
2021	12961
2018-2020	168
1990-1991	6428
1985	13050
1984	6428
1983	DE3021
1982	6428
1976-1978	DE3022

Bulb Specifications

Description	Bulb Size
Philips part number. Miniature wedge bulb (T10) with W2.1x9.5d base. 12V, 5W.	12961
ANSI standard (US & Canada). Miniature wedge bulb (T10). 12V, 4.9W.	168
ANSI standard (US & Canada). Festoon bulb, 36mm length, SV8.5 base. 12V, 5W.	6428
OEM/Wagner part number. Halogen bulb, specialty application. 12V.	13050
ANSI standard (US & Canada). Festoon bulb, 31mm length, end-cap contacts. 12V.	DE3021
ANSI standard (US & Canada). Festoon bulb, 31mm length, end-cap contacts. 12V.	DE3022

Other Locations

Additional Notes

The 168 bulb is the most frequently specified trunk bulb across the Honda Accord lineup, appearing in the 2018-2020 model years. It is an ANSI-standard miniature wedge bulb of the T10 type, rated at 12V and 4.9W.
The 6428 festoon bulb is the second most recurring specification, covering the 1982, 1984, and 1990-1991 model years. It operates at 12V and 5W, uses an SV8.5 base, and has a 36mm length.
The DE3022 festoon bulb is specified for the Honda Accord across the 1976-1978 model years. Like the DE3021, it is an ANSI-standard 31mm festoon type with end-cap contacts rated at 12V.
The T10 wedge form factor is represented by two distinct part numbers in these specifications: the ANSI-standard 168 and the Philips-numbered 12961. Both share the same T10 bulb type and 12V rating, though the 168 is rated at 4.9W while the 12961 is rated at 5W.
The 12961 is a Philips proprietary part number rather than an ANSI standard designation. It uses a W2.1x9.5d base, which is the standard wedge base associated with T10 miniature bulbs, and is specified for the 2021 Honda Accord trunk.
The DE3021 and DE3022 are both ANSI-standard 31mm festoon bulbs with end-cap contacts rated at 12V. Despite their near-identical designations, they are distinct part numbers and are not listed as interchangeable within these specifications.
The 13050 is identified as an OEM and Wagner part number for a halogen bulb in a specialty application. It is specified solely for the 1985 Honda Accord trunk and carries only a 12V rating in these specifications.
Festoon bulbs as a category cover the widest span of model years in these specifications, with the 36mm 6428 and the 31mm DE3021 and DE3022 types collectively accounting for entries from 1976 through 1991.
The SV8.5 base on the 6428 festoon bulb uses spring-loaded end caps that make contact with the socket housing, a mounting method physically distinct from the end-cap contact style noted for the DE3021 and DE3022 bulbs.
The 1983 Honda Accord trunk uses the DE3021, a 31mm festoon bulb, while the 1982 and 1984 models use the 6428, a 36mm festoon bulb. The two festoon types differ in length and base contact style, making them non-interchangeable.