This page helps you verify bulb sizes for the 2010 Nissan 370Z by lighting position, so you can match the right bulb to the right socket before you buy. The 370Z uses a mix of exterior and interior bulbs, and the correct fit can depend on whether you are replacing the headlight, brake light, reverse light, license plate light, or cabin lamp.
For the 2010 Nissan 370Z, several lighting points use LED assemblies, while others use replaceable bulbs such as 921, 168/917, 194/7441, 7444NA, 7440A, 2721, 158, 74, and D2S. Because trim and lighting package can vary by market and body style, checking the exact position on the vehicle is the safest way to confirm the correct replacement.
Fitment on the 2010 Nissan 370Z can vary with trim, package, and whether the car has factory HID or LED equipment, so always compare the installed bulb to the listing before ordering. Some positions are LED modules rather than simple replaceable bulbs, and aftermarket conversions may change the bulb type or connector style. If you are upgrading from halogen to LED, make sure the new bulb matches the socket and has enough clearance, and verify polarity where applicable. The best practice is to inspect the original bulb, confirm the base number, and check the vehicle’s lighting setup before purchase.