Nissan TITAN Parking Light Bulb Size

Additional Notes

• The Nissan TITAN front parking light specifications cover three distinct bulb types across the model's production years: the 7444NA, 7443NA, 3457, and 3157NA, all of which conform to ANSI standards recognized in both the United States and Canada.
• The 7444NA and 7443NA are both T20 wedge bulbs rated at 12V with a dual-filament configuration of 21W and 5W. Both feature natural amber glass, which produces an amber-colored output without requiring a painted or coated lens.
• The 3157NA is a T25 wedge bulb rated at 12V with a dual-filament configuration of 27W and 7W. Like the 7444NA and 7443NA, it incorporates natural amber glass for its color output.
• The 3457 shares the T25 form factor and the same 12V, 27W/7W dual-filament rating as the 3157NA but does not carry the NA designation, indicating it uses clear rather than natural amber glass.
• For the 2022-2023 model years, the Nissan TITAN front parking light takes the 7444NA. The 2019 model year also uses the 7444NA, though only in vehicles equipped with halogen capsule headlamps.
• The 2017-2018 model years specify the 7443NA, again restricted to vehicles fitted with halogen capsule headlamps. Although the 7443NA and 7444NA share the same T20 form factor, voltage, and wattage ratings, they carry different ANSI designations and are not listed interchangeably within these specifications.
• The 3457 applies to the 2009-2015 model years, while the 3157NA was specified for the 2004-2008 model years. Both occupy the T25 form factor with identical wattage ratings, but the absence of the NA suffix on the 3457 reflects a difference in glass type that affects the color output of the installed bulb.
• The dual-filament construction present across all four bulb types in these specifications allows a single bulb to serve both a lower-intensity parking function and a higher-intensity signaling function through separate filaments within the same housing.