Used for: Back Up Reverse Light Bulb
Used for: License Plate Light Bulb
Used for: License Plate Light Bulb
Used for: Side Marker Light Bulb Front
Used for: Turn Signal Light Bulb Front
Used for: Turn Signal Light Bulb Rear
Used for: Courtesy Light Bulb, Map Light Bulb
Used for: Courtesy Light Bulb, Map Light Bulb
Used for: Glove Box Light Bulb
Used for: Interior Door Light Bulb
Used for: Trunk or Cargo Area Light
This 2021 Nissan GT-R bulb size guide helps you verify the correct bulbs by lighting position, so you can replace a failed lamp without guessing. Because the GT-R uses a mix of LED assemblies and replaceable bulbs, it is important to match the bulb type to the exact location on the car before you buy anything.
Use this page as a quick reference for exterior and interior lighting on the 2021 Nissan GT-R. It covers common fitment points such as headlights, brake lights, turn signals, license plate lights, map lights, and cargo-area lighting, making it easier to confirm the right bulb for each position.
Fitment can vary by market, trim, body style, and lighting package, so always compare the bulb listed here with the one already installed in your vehicle. Some positions on the 2021 Nissan GT-R use LED units that may be part of a sealed assembly rather than a simple replaceable bulb, while other locations may use standard halogen-style or mini bulbs. If you are converting to aftermarket LED bulbs, check polarity, resistance, and beam pattern, especially for turn signals and reverse lights. The safest approach is to inspect the installed bulb before ordering, since even closely related trims can differ in socket type or bulb number.
The headlight high beam and low beam on the 2021 Nissan GT-R are listed as LED. In many cases, that means the lighting is integrated rather than a traditional replaceable bulb, so confirm the exact headlamp assembly before ordering parts.
The brake light bulb is listed as LED. If you are replacing a brake lamp issue, check whether the problem is the bulb itself or the complete LED module/assembly.
The rear turn signal bulb is 7440A. This is the specific bulb size listed for the rear indicator position on the 2021 Nissan GT-R.
The front turn signal bulb is 7444NA. Make sure to match the amber front signal bulb specified for this position.
The back up reverse light bulb is 921. If you are upgrading to LED, verify fitment and brightness before installation.
The license plate light bulb is listed as 168 or 917. Either number may appear depending on the bulb style and supplier labeling.
The front side marker light bulb is 194NA. This is the amber side marker bulb listed for the front of the 2021 Nissan GT-R.
The rear side marker light bulb is listed as LED. As with other LED positions, the exact service method may depend on the lamp assembly.
The map light bulb can be 194 or 7441, and the courtesy light bulb is also listed as 194 or 7441. Check the installed bulb to confirm which version your car uses.
The trunk or cargo area light bulb is 158. This is the listed bulb size for the rear interior cargo light position.
The interior door light bulb is 161. Confirm the socket and bulb shape before purchasing a replacement.
The glove box light bulb is 74. This small interior bulb is commonly easy to replace once the glove box lamp housing is accessed.
Not always. Trim, market, and lighting package differences can change the exact bulb or assembly used, so it is best to verify the bulb by position and compare it with the installed part.
You can, but it is important to check fitment, polarity, and compatibility first. Some LED positions on the 2021 Nissan GT-R are integrated assemblies, and aftermarket conversions may not behave the same as factory lighting.
