INFINITI G37 Headlight Bulb Size

The INFINITI G37 uses D2S and 9006 bulb sizes for high beam headlights, while low beam headlights require D2S and H1 bulb sizes. The replacement chart covers 2008 to 2013 model 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.

High Beam Headlight

If US Type and EU Type show the same value, a direct cross-reference for this bulb is not available or the data is insufficient.

Years	US Type	EU Type	Shop
2011-2013	D2S	D2S	Check Price
2010	D2S	D2S	Check Price
2010	9006 (Amber)	HB4	Check Price
2008-2009	D2S	D2S	Check Price

Low Beam Headlight

Years	Bulb Type	Shop
2012-2013	D2S	Check Price
2012-2013	H1	Check Price
2011	D2S	Check Price
2011	H1 (From 08/2011)	Check Price
2009-2010	D2S	Check Price
2009-2010	H1	Check Price
2008	D2S	Check Price
2008	H1 (From 08/2008)	Check Price

Bulb Specifications

Description	Type	Shop
ECE standard (Europe & worldwide). HID (xenon) discharge bulb with P32d-2 base, for projector-type housings. Requires external ignitor. 85V, 35W.	D2S	Check Price
ANSI standard (US & Canada). Single-filament halogen bulb with P22d base. 12V, 55W.	9006	Check Price
ECE standard (Europe & worldwide). Single-filament halogen bulb with P14.5s base. Also approved in the US and Japan. 12V, 55W.	H1	Check Price

Other Locations

Additional Notes

The D2S is the most prevalent bulb type across the Infiniti G37's headlight specifications, appearing in both high beam and low beam positions throughout the 2008-2013 model years. It is an HID (xenon) discharge bulb operating at 85V and 35W, built to the ECE standard for use in projector-type housings, and requires an external ignitor to function.
The D2S uses a P32d-2 base, which is specific to HID projector applications and is not interchangeable with standard halogen sockets. Substituting a halogen bulb in a housing designed for the D2S would be incompatible without modification.
The H1 is the second bulb type listed for low beam positions on the G37. It is a single-filament halogen bulb rated at 12V and 55W, built to the ECE standard but also approved for use in the United States and Japan. Its P14.5s base is a single-pin design.
For the 2011 G37, the H1 low beam fitment applies only to vehicles produced from August 2011 onward, indicating a mid-year specification change within that model year.
A parallel mid-year change is recorded for the 2008 G37, where the H1 low beam fitment also applies from August 2008 onward, suggesting the same production-date-dependent split existed at the model's introduction.
The 9006 bulb appears exclusively in the 2010 G37 high beam position and is listed with an Amber designation. It is a single-filament halogen bulb rated at 12V and 55W, built to the ANSI standard used in the US and Canada, with a P22d base.
The H1 and 9006 share the same wattage rating of 55W at 12V, but their bases differ. The H1 uses a P14.5s single-pin base, while the 9006 uses a P22d bayonet-style base, making the two types physically non-interchangeable despite identical power ratings.
The presence of both D2S and H1 listings for the same model year in the low beam position reflects that the G37 was produced with more than one headlight system configuration, and the correct bulb type for a given vehicle depends on which housing assembly is installed.