101 Electrical bulb & socket parts are listed for the 2021 Nissan Altima, in 16 part types, covering both the 2.0L L4 Turbocharged and the 2.5L L4. Each one has a brand, a manufacturer part number and notes that say where it fits.
The bulb and socket system on the 2021 Nissan Altima covers every bulb and socket on the vehicle, from headlamps to instrument-cluster illumination. The largest groups are Headlamp Bulb (15 parts), Trunk / Cargo Area Light Bulb (9 parts) and Back Up / Reverse Lamp Bulb (8 parts). The other 13 part types cover the remaining 69 parts.
The 2021 Nissan Altima was sold with both the 2.0L L4 Turbocharged and the 2.5L L4. All 101 parts on this page fit every engine.
The most listed brands for 2021 Nissan Altima electrical bulb & socket parts are SYLVANIA (57 parts), WAGNER (26 parts) and HELLA (7 parts), plus 4 more brands. Quality grades include LED, Standard Replacement and Extended Life.
23 parts on this 2021 Nissan Altima page carry a "Popular" badge — the source catalog's flag for options frequently chosen for this vehicle — including SYLVANIA 921LL (Back Up / Reverse Lamp Bulb) and SYLVANIA 7443LL (Brake Light Bulb). Click any part number to see every vehicle that part fits.
Back Up / Reverse Lamp Bulb
Extended Life
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SYLVANIA Popular Fits: all 2021 Altima engines | 921LL | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Long LifeBase Type: W2.1x9.2d | View on Amazon |
| HELLA Fits: all 2021 Altima engines | 4114LL | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | IncandescentLong Life | View on Amazon |
| WAGNER Fits: all 2021 Altima engines | 921LL | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Long LifeWedge Base | View on Amazon |
Extra Bright (improved visibility, but shorter life)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SYLVANIA Fits: all 2021 Altima engines | 921ST | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Cool WhiteSilver Star | View on Amazon |
LED (instant-on, long life, energy-saving)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| WAGNER Fits: all 2021 Altima engines | 921WLED | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | LEDWhite | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| WAGNER Popular Fits: all 2021 Altima engines | 921 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Bulb Type: T-5 Bulb 5/8 (16mm) DiameterVoltage: 12.800 Volts (Direct Current) | View on Amazon |
| HELLA Fits: all 2021 Altima engines | 3156 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | IncandescentSocket Type Bulb: W2.5x16d | View on Amazon |
| SYLVANIA Fits: all 2021 Altima engines | 921 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Base Type: W2.1x9.2dWattage: 18.00 W | View on Amazon |
This table covers the bulbs in the reverse lamps. Typical signs include a dark lamp, flicker, or a bulb that keeps failing in one socket. If the same position keeps failing, replace the socket or repair the ground rather than chasing bulbs.
8 Back Up / Reverse Lamp Bulb parts are listed for the 2021 Nissan Altima, from SYLVANIA, WAGNER and HELLA. SYLVANIA 921LL carries the "Popular" badge. All of them fit every engine offered in the 2021 Altima.
The Extended Life section lists 3 options from SYLVANIA, HELLA and WAGNER — grouped under the catalog's "Extended Life" designation — the notes column spells out what sets them apart. SYLVANIA 921LL is listed in this group.
The Extra Bright (improved visibility, but shorter life) section lists 1 option from SYLVANIA — grouped under the catalog's "Extra Bright (improved visibility, but shorter life)" designation — the notes column spells out what sets them apart. SYLVANIA 921ST is listed in this group.
In the LED (instant-on, long life, energy-saving) grade, WAGNER supplies 1 part: grouped under the catalog's "LED (instant-on, long life, energy-saving)" designation — the notes column spells out what sets them apart. A representative part number is WAGNER 921WLED.
The Standard Replacement section lists 3 options from WAGNER, HELLA and SYLVANIA — built to original-equipment specification. WAGNER 921 is listed in this group.
Part numbers include SYLVANIA 921LL and HELLA 4114LL, among others listed above.
Brake Light Bulb
Extended Life
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SYLVANIA Popular Fits: all 2021 Altima engines | 7443LL | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Base Type: W3X16QLong Life | View on Amazon |
| WAGNER Fits: all 2021 Altima engines | 7443LL | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Long LifeDouble Contact Wedge Base | View on Amazon |
Extra Bright (improved visibility, but shorter life)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SYLVANIA Fits: all 2021 Altima engines | 7443ST | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Cool WhiteSilver Star | View on Amazon |
LED (instant-on, long life, energy-saving)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SYLVANIA Fits: all 2021 Altima engines | 7443RSL | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | LED | View on Amazon |
| SYLVANIA Fits: all 2021 Altima engines | 7443RLED | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | ZEVO | View on Amazon |
| WAGNER Fits: all 2021 Altima engines | 7443LEDW | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | LED | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| WAGNER Popular Fits: all 2021 Altima engines | 7443 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Double Contact Wedge Base21.000 Watt | View on Amazon |
| SYLVANIA Fits: all 2021 Altima engines | 7443 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Base Type: W3X16QWattage: 5.30 W | View on Amazon |
This table covers the bulbs in the stop lamps. Typical signs include a dark lamp, flicker, or a bulb that keeps failing in one socket. If the same position keeps failing, replace the socket or repair the ground rather than chasing bulbs.
8 Brake Light Bulb parts are listed for the 2021 Nissan Altima, from SYLVANIA and WAGNER. SYLVANIA 7443LL carries the "Popular" badge. All of them fit every engine offered in the 2021 Altima.
The Extended Life section: 2 options from SYLVANIA and WAGNER. SYLVANIA 7443LL is listed in this group.
The Extra Bright (improved visibility, but shorter life) section: 1 option from SYLVANIA. SYLVANIA 7443ST is listed in this group.
LED (instant-on, long life, energy-saving): 3 parts, from SYLVANIA and WAGNER. A representative part number is SYLVANIA 7443RSL.
The Standard Replacement section: 2 options from WAGNER and SYLVANIA. WAGNER 7443 is listed in this group.
This group includes SYLVANIA 7443LL and SYLVANIA 7443ST and the remaining parts above.
Daytime Running Light Bulb
Extra Bright (improved visibility, but shorter life)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| WAGNER Fits: all 2021 Altima engines | 9005TVX | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | HID Look | View on Amazon |
| WAGNER Fits: all 2021 Altima engines | 9005BLX | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Long Life80% More Light | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| WAGNER Fits: all 2021 Altima engines | 9005 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Voltage: 12.800 Volts (Direct Current) | View on Amazon |
| WAGNER Fits: all 2021 Altima engines | 9005L | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Long Life | View on Amazon |
This table covers the bulbs used as daytime running lamps. Typical signs include a dark lamp, flicker, or a bulb that keeps failing in one socket. If the same position keeps failing, replace the socket or repair the ground rather than chasing bulbs.
4 Daytime Running Light Bulb parts for the 2021 Nissan Altima come from WAGNER. Every part fits both the 2.0L L4 Turbocharged and the 2.5L L4.
Extra Bright (improved visibility, but shorter life): 2 parts, from WAGNER. A representative part number is WAGNER 9005TVX.
Standard Replacement: 2 parts, from WAGNER. A representative part number is WAGNER 9005.
Part numbers include WAGNER 9005TVX, WAGNER 9005BLX and WAGNER 9005, among others listed above.
Dome Light Bulb
LED (instant-on, long life, energy-saving)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| PHILIPS Fits: all 2021 Altima engines | 194RLED | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Ultinon LEDRed | View on Amazon |
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| HELLA Fits: all 2021 Altima engines | 2825 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | IncandescentSocket Type Bulb: W2.1x9.5d | View on Amazon |
This table covers the bulbs in the dome lamp. Typical signs include a dark lamp, flicker, or a bulb that keeps failing in one socket. If the same position keeps failing, replace the socket or repair the ground rather than chasing bulbs.
2 Dome Light Bulb parts are listed for the 2021 Nissan Altima, from PHILIPS and HELLA. All of them fit every engine offered in the 2021 Altima.
LED (instant-on, long life, energy-saving): 1 part, from PHILIPS. A representative part number is PHILIPS 194RLED.
1 ungrouped part is not assigned to a grade, with the same engine-level match.
This group includes PHILIPS 194RLED and HELLA 2825.
Door Panel Light Bulb
Extended Life
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SYLVANIA Popular Fits: all 2021 Altima engines | 194LL | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Long LifeBase Type: W2.1x9.2d | View on Amazon |
Extra Bright (improved visibility, but shorter life)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SYLVANIA Fits: all 2021 Altima engines | 194ST | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Color Temperature: 3200 KVSilver Star | View on Amazon |
LED (instant-on, long life, energy-saving)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SYLVANIA Fits: all 2021 Altima engines | 194BSL | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | LEDBlue | View on Amazon |
| SYLVANIA Fits: all 2021 Altima engines | 194SL | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | LEDCool White | View on Amazon |
| SYLVANIA Fits: all 2021 Altima engines | 194BLED | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | BlueZEVO | View on Amazon |
| SYLVANIA Fits: all 2021 Altima engines | 194LED | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | ZEVOCool White | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SYLVANIA Popular Fits: all 2021 Altima engines | 194 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Base Type: W2.1x9.2dWattage: 3.80 W | View on Amazon |
This table covers the replacement bulbs for the Door Panel Light. Typical signs include a dark lamp, flicker, or a bulb that keeps failing in one socket. If the same position keeps failing, replace the socket or repair the ground rather than chasing bulbs.
7 Door Panel Light Bulb parts for the 2021 Nissan Altima come from SYLVANIA. The "Popular" part is SYLVANIA 194LL. Every part fits both the 2.0L L4 Turbocharged and the 2.5L L4.
Extended Life: 1 part, from SYLVANIA. A representative part number is SYLVANIA 194LL.
Extra Bright (improved visibility, but shorter life): 1 part, from SYLVANIA. A representative part number is SYLVANIA 194ST.
The LED (instant-on, long life, energy-saving) section: 4 options from SYLVANIA. SYLVANIA 194BSL is listed in this group.
Standard Replacement: 1 part, from SYLVANIA. A representative part number is SYLVANIA 194.
Listed part numbers: SYLVANIA 194LL, SYLVANIA 194ST and SYLVANIA 194BSL, plus the other parts above.
Glove Box Light Bulb
Extended Life
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SYLVANIA Popular Fits: all 2021 Altima engines | 158LL | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Long LifeBase Type: W2.1x9.2d | View on Amazon |
LED (instant-on, long life, energy-saving)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SYLVANIA Fits: all 2021 Altima engines | 158BLED | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | ZEVO | View on Amazon |
| SYLVANIA Fits: all 2021 Altima engines | 158BSL | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | LED | View on Amazon |
| SYLVANIA Fits: all 2021 Altima engines | 158LED | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | ZEVO | View on Amazon |
| SYLVANIA Fits: all 2021 Altima engines | 158SL | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | LED | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SYLVANIA Popular Fits: all 2021 Altima engines | 158 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon |
This table covers the bulbs in the glove-box lamp. Typical signs include a dark lamp, flicker, or a bulb that keeps failing in one socket. If the same position keeps failing, replace the socket or repair the ground rather than chasing bulbs.
6 Glove Box Light Bulb parts for the 2021 Nissan Altima come from SYLVANIA. The "Popular" part is SYLVANIA 158LL. Every part fits both the 2.0L L4 Turbocharged and the 2.5L L4.
Extended Life: 1 part, from SYLVANIA. A representative part number is SYLVANIA 158LL.
The LED (instant-on, long life, energy-saving) section: 4 options from SYLVANIA. SYLVANIA 158BLED is listed in this group.
Standard Replacement: 1 part, from SYLVANIA. A representative part number is SYLVANIA 158.
Part numbers include SYLVANIA 158LL, SYLVANIA 158BLED and SYLVANIA 158BSL, among others listed above.
Headlamp Bulb
Extended Life
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SYLVANIA Popular Fits: all 2021 Altima engines | H11LL | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Long Life | View on Amazon |
| WAGNER Fits: all 2021 Altima engines | 1255H11LL | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Long Life | View on Amazon |
Extra Bright (improved visibility, but shorter life)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SYLVANIA Fits: all 2021 Altima engines | H11XV | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Xtra VisionColor Temperature: 3200 KV | View on Amazon |
| SYLVANIA Fits: all 2021 Altima engines | H11SU | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Silver Star UltraColor Temperature: 4100 KV | View on Amazon |
| SYLVANIA Fits: all 2021 Altima engines | H11ST | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Color Temperature: 4000 KVSilver Star | View on Amazon |
| SYLVANIA Fits: all 2021 Altima engines | H11SZGP | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Silver Star zXe GOLDBase Type: PGJ19 | View on Amazon |
| WAGNER Fits: all 2021 Altima engines | 9005TVX | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | HID Look | View on Amazon |
| WAGNER Fits: all 2021 Altima engines | 9005BLX | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Long Life80% More Light | View on Amazon |
| WAGNER Fits: all 2021 Altima engines | H11BLX | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | BritelitePGJ19-2 Base | View on Amazon |
| WAGNER Fits: all 2021 Altima engines | H11TVX | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Truview Plus1.733 Base | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SYLVANIA Popular Fits: all 2021 Altima engines | H11 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Base Type: PGJ19-2 | View on Amazon |
| WAGNER Popular Fits: all 2021 Altima engines | 1255H11 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Bulb Color: Clear | View on Amazon |
| SYLVANIA Fits: all 2021 Altima engines | H9 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | High Beamwith Factory Halogen Headlights | View on Amazon |
| WAGNER Fits: all 2021 Altima engines | 9005 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Voltage: 12.800 Volts (Direct Current) | View on Amazon |
| WAGNER Fits: all 2021 Altima engines | 9005L | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Long Life | View on Amazon |
This table covers the bulbs that light the headlamps. Typical signs include a dark lamp, a flicker over bumps, or a bulb that keeps failing on one side. Avoid touching a halogen capsule. Repeated failure in one socket is usually the socket or ground, not the bulb.
15 Headlamp Bulb parts for the 2021 Nissan Altima come from 2 brands — WAGNER and SYLVANIA. The "Popular" part is SYLVANIA H11LL. Every part fits both the 2.0L L4 Turbocharged and the 2.5L L4.
Extended Life: 2 parts, from SYLVANIA and WAGNER. A representative part number is SYLVANIA H11LL.
Extra Bright (improved visibility, but shorter life): 8 parts, from SYLVANIA and WAGNER. A representative part number is SYLVANIA H11XV.
Standard Replacement: 5 parts, from WAGNER and SYLVANIA. A representative part number is SYLVANIA H11.
Headlamp Socket
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS Popular Fits: all 2021 Altima engines | HP3835 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | HandypackConnector Shape: Oval | View on Amazon |
| STANDARD MOTOR PRODUCTS Popular Fits: all 2021 Altima engines | S553 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Connector Shape: OvalContact Terminal Material: Metal | View on Amazon |
| ACDELCO Fits: all 2021 Altima engines | LS255 | 🇺🇸 US 🇨🇦 CA | Gold | View on Amazon |
| ACDELCO Fits: all 2021 Altima engines | PT2298 | 🇺🇸 US 🇨🇦 CA | GoldHeight (In): 1.5 in | View on Amazon |
| STANDARD MOTOR PRODUCTS Fits: all 2021 Altima engines | HP3970 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Handypack | View on Amazon |
| STANDARD MOTOR PRODUCTS Fits: all 2021 Altima engines | S524 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Weather Resistant: YES | View on Amazon |
| WALKER PRODUCTS Fits: all 2021 Altima engines | 2701125 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | High Beam | View on Amazon |
This table covers the sockets that hold a headlamp bulb in the housing. Typical signs include a flicker over bumps, melted plastic, or a bulb that will not stay seated. Dielectric grease on the contacts slows corrosion. Do not force a bulb into a heat-damaged socket.
7 Headlamp Socket parts for the 2021 Nissan Altima come from 3 brands — STANDARD MOTOR PRODUCTS, ACDELCO and WALKER PRODUCTS. The "Popular" part is STANDARD MOTOR PRODUCTS HP3835. Every part fits both the 2.0L L4 Turbocharged and the 2.5L L4.
Listed part numbers: STANDARD MOTOR PRODUCTS HP3835, STANDARD MOTOR PRODUCTS S553 and ACDELCO LS255, plus the other parts above.
LED Bulb Adapter
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| WAGNER Fits: all 2021 Altima engines | CB900590069012 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | LEDFor 9005 / 9006 / 9012 Bulb | View on Amazon |
| WAGNER Fits: all 2021 Altima engines | CBH8H11H16 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | For H8 / H11 / H16 Bulb | View on Amazon |
This table covers the LED Bulb adapters.
2 LED Bulb Adapter parts for the 2021 Nissan Altima come from WAGNER. Every part fits both the 2.0L L4 Turbocharged and the 2.5L L4.
This group includes WAGNER CB900590069012 and WAGNER CBH8H11H16.
Map / Reading Light Bulb
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| HELLA Fits: all 2021 Altima engines | 2825 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | IncandescentSocket Type Bulb: W2.1x9.5d | View on Amazon |
This table covers the bulbs in the map / reading lamps. Typical signs include a dark lamp, flicker, or a bulb that keeps failing in one socket. If the same position keeps failing, replace the socket or repair the ground rather than chasing bulbs.
One part is listed for the 2021 Nissan Altima — HELLA 2825.
Parking Lamp Bulb
Extended Life
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SYLVANIA Fits: all 2021 Altima engines | 7444NALL | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Long LifeAmber | View on Amazon |
| WAGNER Fits: all 2021 Altima engines | 7444NALL | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Long LifeNatural Amber | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| WAGNER Fits: all 2021 Altima engines | 7444NA | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Natural Amber | View on Amazon |
This table covers the bulbs in the parking lamps. Typical signs include a dark lamp, flicker, or a bulb that keeps failing in one socket. If the same position keeps failing, replace the socket or repair the ground rather than chasing bulbs.
3 Parking Lamp Bulb parts for the 2021 Nissan Altima come from 2 brands — WAGNER and SYLVANIA. Every part fits both the 2.0L L4 Turbocharged and the 2.5L L4.
Extended Life: 2 parts, from SYLVANIA and WAGNER. A representative part number is SYLVANIA 7444NALL.
Standard Replacement: 1 part, from WAGNER. A representative part number is WAGNER 7444NA.
This group includes SYLVANIA 7444NALL and WAGNER 7444NA and the remaining parts above.
Side Marker Light Bulb
Extended Life
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SYLVANIA Popular Fits: all 2021 Altima engines | 2825LL | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Long LifeBase Type: W2.1x9.5d | View on Amazon |
| HELLA Fits: all 2021 Altima engines | 194LL | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | IncandescentLong Life | View on Amazon |
Extra Bright (improved visibility, but shorter life)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SYLVANIA Fits: all 2021 Altima engines | 2825ST | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | BlueSilver Star | View on Amazon |
LED (instant-on, long life, energy-saving)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| PHILIPS Fits: all 2021 Altima engines | 194RLED | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Ultinon LEDRed | View on Amazon |
| SYLVANIA Fits: all 2021 Altima engines | 2825SL | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | LEDCool White | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| HELLA Popular Fits: all 2021 Altima engines | 194 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Brightness: 2.0 CPIncandescent | View on Amazon |
| SYLVANIA Fits: all 2021 Altima engines | 2825 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Base Type: W2.1x9.5dWattage: 5.00 W | View on Amazon |
This table covers the bulbs in the side-marker lamps. Typical signs include a dark lamp, flicker, or a bulb that keeps failing in one socket. If the same position keeps failing, replace the socket or repair the ground rather than chasing bulbs.
7 Side Marker Light Bulb parts are listed for the 2021 Nissan Altima, from SYLVANIA, HELLA and PHILIPS. SYLVANIA 2825LL carries the "Popular" badge. All of them fit every engine offered in the 2021 Altima.
The Extended Life section: 2 options from SYLVANIA and HELLA. SYLVANIA 2825LL is listed in this group.
The Extra Bright (improved visibility, but shorter life) section: 1 option from SYLVANIA. SYLVANIA 2825ST is listed in this group.
LED (instant-on, long life, energy-saving): 2 parts, from PHILIPS and SYLVANIA. A representative part number is PHILIPS 194RLED.
The Standard Replacement section: 2 options from HELLA and SYLVANIA. HELLA 194 is listed in this group.
Listed part numbers: SYLVANIA 2825LL, HELLA 194LL and SYLVANIA 2825ST, plus the other parts above.
Step / Courtesy Light Bulb
Extended Life
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SYLVANIA Popular Fits: all 2021 Altima engines | 194LL | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Long LifeBase Type: W2.1x9.2d | View on Amazon |
Extra Bright (improved visibility, but shorter life)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SYLVANIA Fits: all 2021 Altima engines | 194ST | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Color Temperature: 3200 KVSilver Star | View on Amazon |
LED (instant-on, long life, energy-saving)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| PHILIPS Fits: all 2021 Altima engines | 194RLED | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Ultinon LEDRed | View on Amazon |
| SYLVANIA Fits: all 2021 Altima engines | 194BSL | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | LEDBlue | View on Amazon |
| SYLVANIA Fits: all 2021 Altima engines | 194SL | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | LEDCool White | View on Amazon |
| SYLVANIA Fits: all 2021 Altima engines | 194BLED | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | BlueZEVO | View on Amazon |
| SYLVANIA Fits: all 2021 Altima engines | 194LED | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | ZEVOCool White | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SYLVANIA Popular Fits: all 2021 Altima engines | 194 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Base Type: W2.1x9.2dWattage: 3.80 W | View on Amazon |
This table covers the bulbs in the step and courtesy lamps. Typical signs include a dark lamp, flicker, or a bulb that keeps failing in one socket. If the same position keeps failing, replace the socket or repair the ground rather than chasing bulbs.
8 Step / Courtesy Light Bulb parts are listed for the 2021 Nissan Altima, from SYLVANIA and PHILIPS. SYLVANIA 194LL carries the "Popular" badge. All of them fit every engine offered in the 2021 Altima.
The Extended Life section: 1 option from SYLVANIA. SYLVANIA 194LL is listed in this group.
The Extra Bright (improved visibility, but shorter life) section: 1 option from SYLVANIA. SYLVANIA 194ST is listed in this group.
LED (instant-on, long life, energy-saving): 5 parts, from SYLVANIA and PHILIPS. A representative part number is PHILIPS 194RLED.
The Standard Replacement section: 1 option from SYLVANIA. SYLVANIA 194 is listed in this group.
Listed part numbers: SYLVANIA 194LL, SYLVANIA 194ST and PHILIPS 194RLED, plus the other parts above.
Tail Lamp Bulb
Extended Life
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SYLVANIA Popular Fits: all 2021 Altima engines | 2825LL | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Long LifeBase Type: W2.1x9.5d | View on Amazon |
| SYLVANIA Fits: all 2021 Altima engines | 7443LL | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Base Type: W3X16QLong Life | View on Amazon |
Extra Bright (improved visibility, but shorter life)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SYLVANIA Fits: all 2021 Altima engines | 7443ST | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Cool WhiteSilver Star | View on Amazon |
| SYLVANIA Fits: all 2021 Altima engines | 2825ST | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | BlueSilver Star | View on Amazon |
LED (instant-on, long life, energy-saving)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| PHILIPS Fits: all 2021 Altima engines | 194RLED | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Ultinon LEDRed | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| HELLA Popular Fits: all 2021 Altima engines | 2825 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | IncandescentSocket Type Bulb: W2.1x9.5d | View on Amazon |
| SYLVANIA Fits: all 2021 Altima engines | 2825 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Base Type: W2.1x9.5dWattage: 5.00 W | View on Amazon |
| SYLVANIA Fits: all 2021 Altima engines | 7443 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Base Type: W3X16QWattage: 5.30 W | View on Amazon |
This table covers the bulbs in the tail lamps. Typical signs include a dark lamp, flicker, or a bulb that keeps failing in one socket. If the same position keeps failing, replace the socket or repair the ground rather than chasing bulbs.
8 Tail Lamp Bulb parts for the 2021 Nissan Altima come from 3 brands — SYLVANIA, PHILIPS and HELLA. The "Popular" part is SYLVANIA 2825LL. Every part fits both the 2.0L L4 Turbocharged and the 2.5L L4.
Extended Life: 2 parts, from SYLVANIA. A representative part number is SYLVANIA 2825LL.
Extra Bright (improved visibility, but shorter life): 2 parts, from SYLVANIA. A representative part number is SYLVANIA 7443ST.
The LED (instant-on, long life, energy-saving) section: 1 option from PHILIPS. PHILIPS 194RLED is listed in this group.
Standard Replacement: 3 parts, from SYLVANIA and HELLA. A representative part number is HELLA 2825.
This group includes SYLVANIA 2825LL, SYLVANIA 7443LL and SYLVANIA 7443ST and the remaining parts above.
Trunk / Cargo Area Light Bulb
Extended Life
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SYLVANIA Popular Fits: all 2021 Altima engines | 158LL | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Long LifeBase Type: W2.1x9.2d | View on Amazon |
| WAGNER Fits: all 2021 Altima engines | 158LL | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Long Life | View on Amazon |
LED (instant-on, long life, energy-saving)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SYLVANIA Fits: all 2021 Altima engines | 158BLED | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | ZEVO | View on Amazon |
| SYLVANIA Fits: all 2021 Altima engines | 158BSL | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | LED | View on Amazon |
| SYLVANIA Fits: all 2021 Altima engines | 158LED | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | ZEVO | View on Amazon |
| SYLVANIA Fits: all 2021 Altima engines | 158RLED | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | ZEVO | View on Amazon |
| SYLVANIA Fits: all 2021 Altima engines | 158RSL | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | LED | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SYLVANIA Popular Fits: all 2021 Altima engines | 158 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon | |
| WAGNER Fits: all 2021 Altima engines | 158 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Wedge Base3.360 Watt | View on Amazon |
This table covers the bulbs in the trunk or cargo-area lamp. Typical signs include a dark lamp, flicker, or a bulb that keeps failing in one socket. If the same position keeps failing, replace the socket or repair the ground rather than chasing bulbs.
9 Trunk / Cargo Area Light Bulb parts for the 2021 Nissan Altima come from 2 brands — SYLVANIA and WAGNER. The "Popular" part is SYLVANIA 158LL. Every part fits both the 2.0L L4 Turbocharged and the 2.5L L4.
Extended Life: 2 parts, from SYLVANIA and WAGNER. A representative part number is SYLVANIA 158LL.
The LED (instant-on, long life, energy-saving) section: 5 options from SYLVANIA. SYLVANIA 158BLED is listed in this group.
Standard Replacement: 2 parts, from SYLVANIA and WAGNER. A representative part number is SYLVANIA 158.
Listed part numbers: SYLVANIA 158LL and SYLVANIA 158BLED, plus the other parts above.
Turn Signal Lamp Bulb
Extended Life
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SYLVANIA Popular Fits: all 2021 Altima engines | 7444NALL | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Long LifeAmber | View on Amazon |
| SYLVANIA Popular Fits: all 2021 Altima engines | 7440LL | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Long LifeBase Type: W3X16D | View on Amazon |
| WAGNER Fits: all 2021 Altima engines | 7444NALL | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Long LifeNatural Amber | View on Amazon |
Extra Bright (improved visibility, but shorter life)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SYLVANIA Fits: all 2021 Altima engines | 7440ST | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Cool WhiteSilver Star | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SYLVANIA Fits: all 2021 Altima engines | 7440 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Base Type: W3X16DWattage: 25.00 W | View on Amazon |
| WAGNER Fits: all 2021 Altima engines | 7444NA | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Natural Amber | View on Amazon |
This table covers the bulbs in the turn-signal lamps. Typical signs include a dark lamp, flicker, or a bulb that keeps failing in one socket. If the same position keeps failing, replace the socket or repair the ground rather than chasing bulbs.
6 Turn Signal Lamp Bulb parts are listed for the 2021 Nissan Altima, from SYLVANIA and WAGNER. SYLVANIA 7444NALL carries the "Popular" badge. All of them fit every engine offered in the 2021 Altima.
The Extended Life section: 3 options from SYLVANIA and WAGNER. SYLVANIA 7444NALL is listed in this group.
The Extra Bright (improved visibility, but shorter life) section: 1 option from SYLVANIA. SYLVANIA 7440ST is listed in this group.
The Standard Replacement section: 2 options from SYLVANIA and WAGNER. SYLVANIA 7440 is listed in this group.
Part numbers include SYLVANIA 7444NALL and SYLVANIA 7440LL, among others listed above.
Buying Electrical Bulb & Socket Parts for a 2021 Nissan Altima
On this vehicle, the bulb and socket system covers every bulb and socket on the vehicle, from headlamps to instrument-cluster illumination.
- You do not need to pick an engine: every electrical bulb & socket part on this page fits both the 2.0L L4 Turbocharged and the 2.5L L4.
- Read the notes on each row for position, trim and spec qualifiers before you order.
- Where labor overlaps, replace bulbs in pairs so both sides age together, and put a smear of dielectric grease on the new socket contacts.
- Cross-reference the manufacturer part number against your old part or a service-manual listing.
Start with the largest groups on this page: Headlamp Bulb and Trunk / Cargo Area Light Bulb .
Frequently Asked Questions
How many electrical bulb & socket parts fit the 2021 Nissan Altima?
Our catalog currently lists 101 electrical bulb & socket parts for the 2021 Nissan Altima across 16 subcategories and 7 brands, covering both the 2.0L L4 Turbocharged and the 2.5L L4. Each part is matched to the engine(s) it fits.
Do electrical bulb & socket parts differ between 2021 Nissan Altima engines?
No. On this page every electrical bulb & socket part fits both the 2.0L L4 Turbocharged and the 2.5L L4. You do not need to pick an engine to choose the right row — use the notes for position and trim.
What are the signs of electrical bulb & socket problems on a 2021 Nissan Altima?
Common symptoms include a lamp that flickers over bumps, melted or discolored socket plastic, or bulbs that keep failing early on one side. If you notice any of these, identify the affected subcategory above and cross-reference the part numbers listed.
What should I replace at the same time?
Where labor overlaps, replace bulbs in pairs so both sides age together, and put a smear of dielectric grease on the new socket contacts.
What do the market flags (US, CA, MX) on each part mean?
They show the market for which the manufacturer published application data for that part — where the vehicle was first sold, not where the part was made. If your 2021 Nissan Altima was originally sold in the US, the safest choice is a part marked for the US market.
How do I make sure a part fits my 2021 Nissan Altima?
Every part on this page already fits both the 2.0L L4 Turbocharged and the 2.5L L4. Then repeated bulb failure in one position usually means a socket or ground problem, not bad bulbs — replace the socket rather than chase it. The notes column carries position and trim qualifiers where they apply.
Other Parts for the 2021 Nissan Altima
Electrical Bulb & Socket Parts for Other Nissan Altima Years
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