SR trim, SV trim, SL trim, Platinum trim · LED projector

2021 Nissan Altima Headlight Bulbs & Lighting Guide

Choose the factory headlight system below to see the correct bulb and recommendation path for this 2021 Nissan Altima.

Source-listed fitment data supplied by CarBulbGuide. Confirm the installed bulbs and configuration before ordering.

Low beam
Integrated LED
High beam
Integrated LED
Factory setup
SR trim, SV trim, SL trim, Platinum trim · LED projector
8.0/10BulbFacts OE Visibility Score
Factory performanceStrong Factory Lighting

Choose the factory system installed in this vehicle. Bulb sizes and recommendations change with that selection.

2021 Nissan Altima factory headlights vehicle image

How the factory headlights perform

This vehicle has more than one documented factory system. Use the selector above to match the trim or package where available.

Strong Factory Lighting

Usually no upgrade needed; confirm the exact trim and keep lenses clean and properly maintained.

Peak low-beam reach
405 ft
Compared with tested Cars, Sedans & Hatchbacks93rd percentile
Compared with all tested vehicles93rd percentile
Peak high-beam reach
524 ft
Compared with tested Cars, Sedans & Hatchbacks65th percentile
Compared with all tested vehicles65th percentile
Curve visibility
9.4 / 15
Glare control
10 / 10No recorded low-beam glare exceedance
High-beam assist
Yes
Curve-adaptive lighting
No

Performance varies by factory headlight system or trim. Confirm the installed configuration above.

Factory system guidance

Integrated LED headlights are not conventional replaceable-bulb systems. The performance results above describe the selected factory configuration.

SR trim, SV trim, SL trim, Platinum trim · LED projector

Low beam: Integrated LED · High beam: Integrated LED

Keep the factory system

The main headlights use integrated factory LEDs, not conventional replaceable bulbs. Diagnose aim, wiring, modules, moisture, and the assembly before ordering service parts by VIN.

Other bulbs

Available exterior and interior lighting data for this model year.

Brake Light
7443Possible fitment — verify installed bulb
Cargo / Trunk Light
T10Possible fitment — verify installed bulb
Cornering Light
921Verify installed bulb
Courtesy Light
T10Possible fitment — verify installed bulb
Dome Light
T10Possible fitment — verify installed bulb
Fog Light
H11Possible fitment — verify installed bulb
Front Side Marker
194Verify installed bulb
Front Turn Signal
7443Verify installed bulb
Glove Box Light
T10Possible fitment — verify installed bulb
License Plate Light
T10Possible fitment — verify installed bulb
Parking Light
194Verify installed bulb
Rear Side Marker
T10Possible fitment — verify installed bulb
Rear Turn Signal
7443Verify installed bulb
Reverse Light
T15Possible fitment — verify installed bulb
Side Marker (Unqualified)
T10Possible fitment — verify installed bulb
Stepwell Light
T10Possible fitment — verify installed bulb
Turn Signal (Unqualified)
7443Possible fitment — verify installed bulb
Technical details and sources

Confirm the installed bulb, connector, housing, and factory system before ordering.

PositionBulb or systemFitment status
Low BeamFactory system not specifiedH11Possible fitment — verify installed bulb

Each model year opens its own BulbFacts record. Bulb sizes and factory systems are not carried over from adjacent years.

Fitment note: Verify the installed bulb, connector, housing, and factory system before ordering. A bulb-size match is not automatically a conversion recommendation or proof of vehicle-specific testing.